cc/trees/layer_tree_host_unittest.cc

   1 // Copyright 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "cc/trees/layer_tree_host.h"
   6
   7 #include <algorithm>
   8
   9 #include "base/auto_reset.h"
  10 #include "base/location.h"
  11 #include "base/single_thread_task_runner.h"
  12 #include "base/synchronization/lock.h"
  13 #include "base/thread_task_runner_handle.h"
  14 #include "cc/animation/timing_function.h"
  15 #include "cc/debug/frame_rate_counter.h"
  16 #include "cc/layers/content_layer_client.h"
  17 #include "cc/layers/io_surface_layer.h"
  18 #include "cc/layers/layer_impl.h"
  19 #include "cc/layers/painted_scrollbar_layer.h"
  20 #include "cc/layers/picture_layer.h"
  21 #include "cc/layers/solid_color_layer.h"
  22 #include "cc/layers/video_layer.h"
  23 #include "cc/output/begin_frame_args.h"
  24 #include "cc/output/compositor_frame_ack.h"
  25 #include "cc/output/copy_output_request.h"
  26 #include "cc/output/copy_output_result.h"
  27 #include "cc/output/output_surface.h"
  28 #include "cc/output/swap_promise.h"
  29 #include "cc/quads/draw_quad.h"
  30 #include "cc/quads/io_surface_draw_quad.h"
  31 #include "cc/quads/render_pass_draw_quad.h"
  32 #include "cc/quads/tile_draw_quad.h"
  33 #include "cc/test/fake_content_layer_client.h"
  34 #include "cc/test/fake_layer_tree_host_client.h"
  35 #include "cc/test/fake_output_surface.h"
  36 #include "cc/test/fake_painted_scrollbar_layer.h"
  37 #include "cc/test/fake_picture_layer.h"
  38 #include "cc/test/fake_picture_layer_impl.h"
  39 #include "cc/test/fake_picture_pile.h"
  40 #include "cc/test/fake_proxy.h"
  41 #include "cc/test/fake_scoped_ui_resource.h"
  42 #include "cc/test/fake_video_frame_provider.h"
  43 #include "cc/test/geometry_test_utils.h"
  44 #include "cc/test/layer_tree_test.h"
  45 #include "cc/test/test_shared_bitmap_manager.h"
  46 #include "cc/test/test_web_graphics_context_3d.h"
  47 #include "cc/trees/layer_tree_host_impl.h"
  48 #include "cc/trees/layer_tree_impl.h"
  49 #include "cc/trees/single_thread_proxy.h"
  50 #include "cc/trees/thread_proxy.h"
  51 #include "gpu/GLES2/gl2extchromium.h"
  52 #include "skia/ext/refptr.h"
  53 #include "testing/gmock/include/gmock/gmock.h"
  54 #include "third_party/khronos/GLES2/gl2.h"
  55 #include "third_party/khronos/GLES2/gl2ext.h"
  56 #include "third_party/skia/include/core/SkPicture.h"
  57 #include "ui/gfx/geometry/point_conversions.h"
  58 #include "ui/gfx/geometry/size_conversions.h"
  59 #include "ui/gfx/geometry/vector2d_conversions.h"
  60
  61 using testing::_;
  62 using testing::AnyNumber;
  63 using testing::AtLeast;
  64 using testing::Mock;
  65
  66 namespace cc {
  67 namespace {
  68
  69 class LayerTreeHostTest : public LayerTreeTest {};
  70
  71 class LayerTreeHostTestHasImplThreadTest : public LayerTreeHostTest {
  72  public:
  73   LayerTreeHostTestHasImplThreadTest() : threaded_(false) {}
  74
  75   void RunTest(bool threaded, bool delegating_renderer) override {
  76     threaded_ = threaded;
  77     LayerTreeHostTest::RunTest(threaded, delegating_renderer);
  78   }
  79
  80   void BeginTest() override {
  81     EXPECT_EQ(threaded_, HasImplThread());
  82     EndTest();
  83   }
  84
  85   void AfterTest() override { EXPECT_EQ(threaded_, HasImplThread()); }
  86
  87  private:
  88   bool threaded_;
  89 };
  90
  91 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestHasImplThreadTest);
  92
  93 class LayerTreeHostTestSetNeedsCommitInsideLayout : public LayerTreeHostTest {
  94  protected:
  95   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
  96
  97   void Layout() override {
  98     // This shouldn't cause a second commit to happen.
  99     layer_tree_host()->SetNeedsCommit();
 100   }
 101
 102   void DidCommit() override {
 103     EXPECT_EQ(1, layer_tree_host()->source_frame_number());
 104     EndTest();
 105   }
 106
 107   void AfterTest() override {}
 108 };
 109
 110 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestSetNeedsCommitInsideLayout);
 111
 112 class LayerTreeHostTestSetNeedsUpdateInsideLayout : public LayerTreeHostTest {
 113  protected:
 114   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
 115
 116   void Layout() override {
 117     // This shouldn't cause a second commit to happen.
 118     layer_tree_host()->SetNeedsUpdateLayers();
 119   }
 120
 121   void DidCommit() override {
 122     EXPECT_EQ(1, layer_tree_host()->source_frame_number());
 123     EndTest();
 124   }
 125
 126   void AfterTest() override {}
 127 };
 128
 129 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestSetNeedsUpdateInsideLayout);
 130
 131 // Test if the LTHI receives ReadyToActivate notifications from the TileManager
 132 // when no raster tasks get scheduled.
 133 class LayerTreeHostTestReadyToActivateEmpty : public LayerTreeHostTest {
 134  public:
 135   LayerTreeHostTestReadyToActivateEmpty()
 136       : did_notify_ready_to_activate_(false),
 137         all_tiles_required_for_activation_are_ready_to_draw_(false),
 138         required_for_activation_count_(0) {}
 139
 140   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
 141
 142   void CommitCompleteOnThread(LayerTreeHostImpl* impl) override {
 143     const std::vector<PictureLayerImpl*>& layers =
 144         impl->sync_tree()->picture_layers();
 145     required_for_activation_count_ = 0;
 146     for (const auto& layer : layers) {
 147       FakePictureLayerImpl* fake_layer =
 148           static_cast<FakePictureLayerImpl*>(layer);
 149       required_for_activation_count_ +=
 150           fake_layer->CountTilesRequiredForActivation();
 151     }
 152   }
 153
 154   void NotifyReadyToActivateOnThread(LayerTreeHostImpl* impl) override {
 155     did_notify_ready_to_activate_ = true;
 156     all_tiles_required_for_activation_are_ready_to_draw_ =
 157         impl->tile_manager()->IsReadyToActivate();
 158     EndTest();
 159   }
 160
 161   void AfterTest() override {
 162     EXPECT_TRUE(did_notify_ready_to_activate_);
 163     EXPECT_TRUE(all_tiles_required_for_activation_are_ready_to_draw_);
 164     EXPECT_EQ(size_t(0), required_for_activation_count_);
 165   }
 166
 167  protected:
 168   bool did_notify_ready_to_activate_;
 169   bool all_tiles_required_for_activation_are_ready_to_draw_;
 170   size_t required_for_activation_count_;
 171 };
 172
 173 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestReadyToActivateEmpty);
 174
 175 // Test if the LTHI receives ReadyToActivate notifications from the TileManager
 176 // when some raster tasks flagged as REQUIRED_FOR_ACTIVATION got scheduled.
 177 class LayerTreeHostTestReadyToActivateNonEmpty
 178     : public LayerTreeHostTestReadyToActivateEmpty {
 179  public:
 180   void SetupTree() override {
 181     client_.set_fill_with_nonsolid_color(true);
 182     scoped_refptr<FakePictureLayer> root_layer =
 183         FakePictureLayer::Create(layer_settings(), &client_);
 184     root_layer->SetBounds(gfx::Size(1024, 1024));
 185     root_layer->SetIsDrawable(true);
 186
 187     layer_tree_host()->SetRootLayer(root_layer);
 188     LayerTreeHostTest::SetupTree();
 189   }
 190
 191   void AfterTest() override {
 192     EXPECT_TRUE(did_notify_ready_to_activate_);
 193     EXPECT_TRUE(all_tiles_required_for_activation_are_ready_to_draw_);
 194     EXPECT_LE(size_t(1), required_for_activation_count_);
 195   }
 196
 197  private:
 198   FakeContentLayerClient client_;
 199 };
 200
 201 // Multi-thread only because in single thread the commit goes directly to the
 202 // active tree, so notify ready to activate is skipped.
 203 MULTI_THREAD_TEST_F(LayerTreeHostTestReadyToActivateNonEmpty);
 204
 205 // Test if the LTHI receives ReadyToDraw notifications from the TileManager when
 206 // no raster tasks get scheduled.
 207 class LayerTreeHostTestReadyToDrawEmpty : public LayerTreeHostTest {
 208  public:
 209   LayerTreeHostTestReadyToDrawEmpty()
 210       : did_notify_ready_to_draw_(false),
 211         all_tiles_required_for_draw_are_ready_to_draw_(false),
 212         required_for_draw_count_(0) {}
 213
 214   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
 215
 216   void NotifyReadyToDrawOnThread(LayerTreeHostImpl* impl) override {
 217     did_notify_ready_to_draw_ = true;
 218     const std::vector<PictureLayerImpl*>& layers =
 219         impl->active_tree()->picture_layers();
 220     all_tiles_required_for_draw_are_ready_to_draw_ =
 221         impl->tile_manager()->IsReadyToDraw();
 222     for (const auto& layer : layers) {
 223       FakePictureLayerImpl* fake_layer =
 224           static_cast<FakePictureLayerImpl*>(layer);
 225       required_for_draw_count_ += fake_layer->CountTilesRequiredForDraw();
 226     }
 227
 228     EndTest();
 229   }
 230
 231   void AfterTest() override {
 232     EXPECT_TRUE(did_notify_ready_to_draw_);
 233     EXPECT_TRUE(all_tiles_required_for_draw_are_ready_to_draw_);
 234     EXPECT_EQ(size_t(0), required_for_draw_count_);
 235   }
 236
 237  protected:
 238   bool did_notify_ready_to_draw_;
 239   bool all_tiles_required_for_draw_are_ready_to_draw_;
 240   size_t required_for_draw_count_;
 241 };
 242
 243 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestReadyToDrawEmpty);
 244
 245 // Test if the LTHI receives ReadyToDraw notifications from the TileManager when
 246 // some raster tasks flagged as REQUIRED_FOR_DRAW got scheduled.
 247 class LayerTreeHostTestReadyToDrawNonEmpty
 248     : public LayerTreeHostTestReadyToDrawEmpty {
 249  public:
 250   void SetupTree() override {
 251     client_.set_fill_with_nonsolid_color(true);
 252     scoped_refptr<FakePictureLayer> root_layer =
 253         FakePictureLayer::Create(layer_settings(), &client_);
 254     root_layer->SetBounds(gfx::Size(1024, 1024));
 255     root_layer->SetIsDrawable(true);
 256
 257     layer_tree_host()->SetRootLayer(root_layer);
 258     LayerTreeHostTest::SetupTree();
 259   }
 260
 261   void AfterTest() override {
 262     EXPECT_TRUE(did_notify_ready_to_draw_);
 263     EXPECT_TRUE(all_tiles_required_for_draw_are_ready_to_draw_);
 264     EXPECT_LE(size_t(1), required_for_draw_count_);
 265   }
 266
 267  private:
 268   FakeContentLayerClient client_;
 269 };
 270
 271 // Note: With this test setup, we only get tiles flagged as REQUIRED_FOR_DRAW in
 272 // single threaded mode.
 273 SINGLE_THREAD_TEST_F(LayerTreeHostTestReadyToDrawNonEmpty);
 274
 275 // This tests if we get the READY_TO_DRAW signal and draw if we become invisible
 276 // and then become visible again.
 277 class LayerTreeHostTestReadyToDrawVisibility : public LayerTreeHostTest {
 278  public:
 279   LayerTreeHostTestReadyToDrawVisibility()
 280       : LayerTreeHostTest(),
 281         toggled_visibility_(false),
 282         did_notify_ready_to_draw_(false),
 283         did_draw_(false) {}
 284
 285   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
 286
 287   void SetupTree() override {
 288     client_.set_fill_with_nonsolid_color(true);
 289     scoped_refptr<FakePictureLayer> root_layer =
 290         FakePictureLayer::Create(layer_settings(), &client_);
 291     root_layer->SetBounds(gfx::Size(1024, 1024));
 292     root_layer->SetIsDrawable(true);
 293
 294     layer_tree_host()->SetRootLayer(root_layer);
 295     LayerTreeHostTest::SetupTree();
 296   }
 297
 298   void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) override {
 299     if (!toggled_visibility_) {
 300       {
 301         DebugScopedSetMainThread main(proxy());
 302         layer_tree_host()->SetVisible(false);
 303       }
 304       toggled_visibility_ = true;
 305       EXPECT_FALSE(host_impl->visible());
 306     }
 307   }
 308
 309   void NotifyReadyToDrawOnThread(LayerTreeHostImpl* host_impl) override {
 310     // Sometimes the worker thread posts NotifyReadyToDraw in the extremely
 311     // short duration of time between PrepareTiles and SetVisible(false) so we
 312     // might get two NotifyReadyToDraw signals for this test.
 313     did_notify_ready_to_draw_ = true;
 314   }
 315
 316   void DrawLayersOnThread(LayerTreeHostImpl* host_impl) override {
 317     EXPECT_FALSE(did_draw_);
 318     did_draw_ = true;
 319     EndTest();
 320   }
 321
 322   void DidFinishImplFrameOnThread(LayerTreeHostImpl* host_impl) override {
 323     if (!host_impl->visible()) {
 324       {
 325         DebugScopedSetMainThread main(proxy());
 326         layer_tree_host()->SetVisible(true);
 327       }
 328       EXPECT_TRUE(host_impl->visible());
 329     }
 330   }
 331
 332   void AfterTest() override {
 333     EXPECT_TRUE(did_notify_ready_to_draw_);
 334     EXPECT_TRUE(did_draw_);
 335   }
 336
 337  private:
 338   FakeContentLayerClient client_;
 339   bool toggled_visibility_;
 340   bool did_notify_ready_to_draw_;
 341   bool did_draw_;
 342 };
 343
 344 // Note: With this test setup, we only get tiles flagged as REQUIRED_FOR_DRAW in
 345 // single threaded mode.
 346 SINGLE_THREAD_TEST_F(LayerTreeHostTestReadyToDrawVisibility);
 347
 348 class LayerTreeHostFreeWorkerContextResourcesTest : public LayerTreeHostTest {
 349  public:
 350   scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface() override {
 351     auto output_surface = make_scoped_ptr(new testing::StrictMock<
 352         MockSetWorkerContextShouldAggressivelyFreeResourcesOutputSurface>(
 353         delegating_renderer()));
 354
 355     // At init, we expect one call to set visibility to true.
 356     testing::Expectation visibility_true =
 357         EXPECT_CALL(*output_surface,
 358                     SetWorkerContextShouldAggressivelyFreeResources(false))
 359             .Times(1);
 360
 361     // After running, we should get exactly one call to
 362     // FreeWorkerContextGpuResources.
 363     EXPECT_CALL(*output_surface,
 364                 SetWorkerContextShouldAggressivelyFreeResources(true))
 365         .After(visibility_true)
 366         .WillOnce(testing::Invoke([this](bool is_visible) { EndTest(); }));
 367     return output_surface.Pass();
 368   }
 369
 370   void InitializeSettings(LayerTreeSettings* settings) override {
 371     settings->gpu_rasterization_enabled = true;
 372     settings->gpu_rasterization_forced = true;
 373   }
 374
 375   void BeginTest() override {
 376     // Logic is handled in InitializedRendererOnThread to ensure that our
 377     // LTHI is fully set up.
 378   }
 379
 380   void AfterTest() override {
 381     // Expectations handled via mock.
 382   }
 383
 384  private:
 385   class MockSetWorkerContextShouldAggressivelyFreeResourcesOutputSurface
 386       : public FakeOutputSurface {
 387    public:
 388     ~MockSetWorkerContextShouldAggressivelyFreeResourcesOutputSurface() {}
 389     explicit MockSetWorkerContextShouldAggressivelyFreeResourcesOutputSurface(
 390         bool delegated_rendering)
 391         : FakeOutputSurface(TestContextProvider::Create(),
 392                             TestContextProvider::Create(),
 393                             delegated_rendering) {}
 394     MOCK_METHOD1(SetWorkerContextShouldAggressivelyFreeResources,
 395                  void(bool is_visible));
 396   };
 397 };
 398
 399 // Test if the LTH successfully frees resources on the worker context when
 400 // visibility is set to false.
 401 class LayerTreeHostFreeWorkerContextResourcesOnInvisible
 402     : public LayerTreeHostFreeWorkerContextResourcesTest {
 403  public:
 404   void InitializedRendererOnThread(LayerTreeHostImpl* host_impl,
 405                                    bool success) override {
 406     PostSetVisibleToMainThread(false);
 407   }
 408 };
 409
 410 SINGLE_AND_MULTI_THREAD_TEST_F(
 411     LayerTreeHostFreeWorkerContextResourcesOnInvisible);
 412
 413 // Test if the LTH successfully frees resources on the worker context when
 414 // hard memory limit is set to zero.
 415 class LayerTreeHostFreeWorkerContextResourcesOnZeroMemoryLimit
 416     : public LayerTreeHostFreeWorkerContextResourcesTest {
 417  public:
 418   void InitializedRendererOnThread(LayerTreeHostImpl* host_impl,
 419                                    bool success) override {
 420     ManagedMemoryPolicy zero_policy(
 421         0, gpu::MemoryAllocation::CUTOFF_ALLOW_NOTHING, 0);
 422     host_impl->SetMemoryPolicy(zero_policy);
 423   }
 424 };
 425
 426 SINGLE_AND_MULTI_THREAD_TEST_F(
 427     LayerTreeHostFreeWorkerContextResourcesOnZeroMemoryLimit);
 428
 429 // Test if the LTH successfully frees resources on the worker context when
 430 // hard memory limit is set to zero while using a synchronous compositor (like
 431 // Android WebView).
 432 class LayerTreeHostFreeWorkerContextResourcesOnZeroMemoryLimitSynchronous
 433     : public LayerTreeHostFreeWorkerContextResourcesOnZeroMemoryLimit {
 434  public:
 435   void InitializeSettings(LayerTreeSettings* settings) override {
 436     LayerTreeHostFreeWorkerContextResourcesTest::InitializeSettings(settings);
 437     settings->use_external_begin_frame_source = true;
 438     settings->using_synchronous_renderer_compositor = true;
 439   }
 440 };
 441
 442 SINGLE_AND_MULTI_THREAD_TEST_F(
 443     LayerTreeHostFreeWorkerContextResourcesOnZeroMemoryLimitSynchronous);
 444
 445 // Two setNeedsCommits in a row should lead to at least 1 commit and at least 1
 446 // draw with frame 0.
 447 class LayerTreeHostTestSetNeedsCommit1 : public LayerTreeHostTest {
 448  public:
 449   LayerTreeHostTestSetNeedsCommit1() : num_commits_(0), num_draws_(0) {}
 450
 451   void BeginTest() override {
 452     PostSetNeedsCommitToMainThread();
 453     PostSetNeedsCommitToMainThread();
 454   }
 455
 456   void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
 457     num_draws_++;
 458     if (!impl->active_tree()->source_frame_number())
 459       EndTest();
 460   }
 461
 462   void CommitCompleteOnThread(LayerTreeHostImpl* impl) override {
 463     num_commits_++;
 464   }
 465
 466   void AfterTest() override {
 467     EXPECT_LE(1, num_commits_);
 468     EXPECT_LE(1, num_draws_);
 469   }
 470
 471  private:
 472   int num_commits_;
 473   int num_draws_;
 474 };
 475
 476 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestSetNeedsCommit1);
 477
 478 // A SetNeedsCommit should lead to 1 commit. Issuing a second commit after that
 479 // first committed frame draws should lead to another commit.
 480 class LayerTreeHostTestSetNeedsCommit2 : public LayerTreeHostTest {
 481  public:
 482   LayerTreeHostTestSetNeedsCommit2() : num_commits_(0), num_draws_(0) {}
 483
 484   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
 485
 486   void DrawLayersOnThread(LayerTreeHostImpl* impl) override { ++num_draws_; }
 487
 488   void CommitCompleteOnThread(LayerTreeHostImpl* impl) override {
 489     ++num_commits_;
 490     switch (num_commits_) {
 491       case 1:
 492         PostSetNeedsCommitToMainThread();
 493         break;
 494       case 2:
 495         EndTest();
 496         break;
 497       default:
 498         NOTREACHED();
 499     }
 500   }
 501
 502   void AfterTest() override {
 503     EXPECT_EQ(2, num_commits_);
 504     EXPECT_LE(1, num_draws_);
 505   }
 506
 507  private:
 508   int num_commits_;
 509   int num_draws_;
 510 };
 511
 512 MULTI_THREAD_TEST_F(LayerTreeHostTestSetNeedsCommit2);
 513
 514 // Verify that we pass property values in PushPropertiesTo.
 515 class LayerTreeHostTestPushPropertiesTo : public LayerTreeHostTest {
 516  protected:
 517   void SetupTree() override {
 518     scoped_refptr<Layer> root = Layer::Create(layer_settings());
 519     root->CreateRenderSurface();
 520     root->SetBounds(gfx::Size(10, 10));
 521     layer_tree_host()->SetRootLayer(root);
 522     LayerTreeHostTest::SetupTree();
 523   }
 524
 525   enum Properties {
 526     STARTUP,
 527     BOUNDS,
 528     HIDE_LAYER_AND_SUBTREE,
 529     DRAWS_CONTENT,
 530     DONE,
 531   };
 532
 533   void BeginTest() override {
 534     index_ = STARTUP;
 535     PostSetNeedsCommitToMainThread();
 536   }
 537
 538   void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
 539     VerifyAfterValues(impl->active_tree()->root_layer());
 540   }
 541
 542   void DidCommitAndDrawFrame() override {
 543     SetBeforeValues(layer_tree_host()->root_layer());
 544     VerifyBeforeValues(layer_tree_host()->root_layer());
 545
 546     ++index_;
 547     if (index_ == DONE) {
 548       EndTest();
 549       return;
 550     }
 551
 552     SetAfterValues(layer_tree_host()->root_layer());
 553   }
 554
 555   void AfterTest() override {}
 556
 557   void VerifyBeforeValues(Layer* layer) {
 558     EXPECT_EQ(gfx::Size(10, 10).ToString(), layer->bounds().ToString());
 559     EXPECT_FALSE(layer->hide_layer_and_subtree());
 560     EXPECT_FALSE(layer->DrawsContent());
 561   }
 562
 563   void SetBeforeValues(Layer* layer) {
 564     layer->SetBounds(gfx::Size(10, 10));
 565     layer->SetHideLayerAndSubtree(false);
 566     layer->SetIsDrawable(false);
 567   }
 568
 569   void VerifyAfterValues(LayerImpl* layer) {
 570     switch (static_cast<Properties>(index_)) {
 571       case STARTUP:
 572       case DONE:
 573         break;
 574       case BOUNDS:
 575         EXPECT_EQ(gfx::Size(20, 20).ToString(), layer->bounds().ToString());
 576         break;
 577       case HIDE_LAYER_AND_SUBTREE:
 578         EXPECT_TRUE(layer->hide_layer_and_subtree());
 579         break;
 580       case DRAWS_CONTENT:
 581         EXPECT_TRUE(layer->DrawsContent());
 582         break;
 583     }
 584   }
 585
 586   void SetAfterValues(Layer* layer) {
 587     switch (static_cast<Properties>(index_)) {
 588       case STARTUP:
 589       case DONE:
 590         break;
 591       case BOUNDS:
 592         layer->SetBounds(gfx::Size(20, 20));
 593         break;
 594       case HIDE_LAYER_AND_SUBTREE:
 595         layer->SetHideLayerAndSubtree(true);
 596         break;
 597       case DRAWS_CONTENT:
 598         layer->SetIsDrawable(true);
 599         break;
 600     }
 601   }
 602
 603   int index_;
 604 };
 605
 606 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestPushPropertiesTo);
 607
 608 // 1 setNeedsRedraw after the first commit has completed should lead to 1
 609 // additional draw.
 610 class LayerTreeHostTestSetNeedsRedraw : public LayerTreeHostTest {
 611  public:
 612   LayerTreeHostTestSetNeedsRedraw() : num_commits_(0), num_draws_(0) {}
 613
 614   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
 615
 616   void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
 617     EXPECT_EQ(0, impl->active_tree()->source_frame_number());
 618     if (!num_draws_) {
 619       // Redraw again to verify that the second redraw doesn't commit.
 620       PostSetNeedsRedrawToMainThread();
 621     } else {
 622       EndTest();
 623     }
 624     num_draws_++;
 625   }
 626
 627   void CommitCompleteOnThread(LayerTreeHostImpl* impl) override {
 628     EXPECT_EQ(0, num_draws_);
 629     num_commits_++;
 630   }
 631
 632   void AfterTest() override {
 633     EXPECT_GE(2, num_draws_);
 634     EXPECT_EQ(1, num_commits_);
 635   }
 636
 637  private:
 638   int num_commits_;
 639   int num_draws_;
 640 };
 641
 642 MULTI_THREAD_TEST_F(LayerTreeHostTestSetNeedsRedraw);
 643
 644 // After setNeedsRedrawRect(invalid_rect) the final damage_rect
 645 // must contain invalid_rect.
 646 class LayerTreeHostTestSetNeedsRedrawRect : public LayerTreeHostTest {
 647  public:
 648   LayerTreeHostTestSetNeedsRedrawRect()
 649       : num_draws_(0), bounds_(50, 50), invalid_rect_(10, 10, 20, 20) {}
 650
 651   void BeginTest() override {
 652     root_layer_ = FakePictureLayer::Create(layer_settings(), &client_);
 653     root_layer_->SetIsDrawable(true);
 654     root_layer_->SetBounds(bounds_);
 655     layer_tree_host()->SetRootLayer(root_layer_);
 656     layer_tree_host()->SetViewportSize(bounds_);
 657     PostSetNeedsCommitToMainThread();
 658   }
 659
 660   DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
 661                                    LayerTreeHostImpl::FrameData* frame_data,
 662                                    DrawResult draw_result) override {
 663     EXPECT_EQ(DRAW_SUCCESS, draw_result);
 664
 665     gfx::RectF root_damage_rect;
 666     if (!frame_data->render_passes.empty())
 667       root_damage_rect = frame_data->render_passes.back()->damage_rect;
 668
 669     if (!num_draws_) {
 670       // If this is the first frame, expect full frame damage.
 671       EXPECT_EQ(root_damage_rect, gfx::Rect(bounds_));
 672     } else {
 673       // Check that invalid_rect_ is indeed repainted.
 674       EXPECT_TRUE(root_damage_rect.Contains(invalid_rect_));
 675     }
 676
 677     return draw_result;
 678   }
 679
 680   void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
 681     if (!num_draws_) {
 682       PostSetNeedsRedrawRectToMainThread(invalid_rect_);
 683     } else {
 684       EndTest();
 685     }
 686     num_draws_++;
 687   }
 688
 689   void AfterTest() override { EXPECT_EQ(2, num_draws_); }
 690
 691  private:
 692   int num_draws_;
 693   const gfx::Size bounds_;
 694   const gfx::Rect invalid_rect_;
 695   FakeContentLayerClient client_;
 696   scoped_refptr<FakePictureLayer> root_layer_;
 697 };
 698
 699 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestSetNeedsRedrawRect);
 700
 701 // Ensure the texture size of the pending and active trees are identical when a
 702 // layer is not in the viewport and a resize happens on the viewport
 703 class LayerTreeHostTestGpuRasterDeviceSizeChanged : public LayerTreeHostTest {
 704  public:
 705   LayerTreeHostTestGpuRasterDeviceSizeChanged()
 706       : num_draws_(0), bounds_(500, 64), invalid_rect_(10, 10, 20, 20) {}
 707
 708   void BeginTest() override {
 709     client_.set_fill_with_nonsolid_color(true);
 710     root_layer_ = FakePictureLayer::Create(layer_settings(), &client_);
 711     root_layer_->SetIsDrawable(true);
 712     gfx::Transform transform;
 713     // Translate the layer out of the viewport to force it to not update its
 714     // tile size via PushProperties.
 715     transform.Translate(10000.0, 10000.0);
 716     root_layer_->SetTransform(transform);
 717     root_layer_->SetBounds(bounds_);
 718     layer_tree_host()->SetRootLayer(root_layer_);
 719     layer_tree_host()->SetViewportSize(bounds_);
 720
 721     PostSetNeedsCommitToMainThread();
 722   }
 723
 724   void InitializeSettings(LayerTreeSettings* settings) override {
 725     settings->gpu_rasterization_enabled = true;
 726     settings->gpu_rasterization_forced = true;
 727   }
 728
 729   void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
 730     // Perform 2 commits.
 731     if (!num_draws_) {
 732       PostSetNeedsRedrawRectToMainThread(invalid_rect_);
 733     } else {
 734       EndTest();
 735     }
 736     num_draws_++;
 737   }
 738
 739   void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) override {
 740     if (num_draws_ == 2) {
 741       auto pending_tree = host_impl->pending_tree();
 742       auto pending_layer_impl =
 743           static_cast<FakePictureLayerImpl*>(pending_tree->root_layer());
 744       EXPECT_NE(pending_layer_impl, nullptr);
 745
 746       auto active_tree = host_impl->pending_tree();
 747       auto active_layer_impl =
 748           static_cast<FakePictureLayerImpl*>(active_tree->root_layer());
 749       EXPECT_NE(pending_layer_impl, nullptr);
 750
 751       auto active_tiling_set = active_layer_impl->picture_layer_tiling_set();
 752       auto active_tiling = active_tiling_set->tiling_at(0);
 753       auto pending_tiling_set = pending_layer_impl->picture_layer_tiling_set();
 754       auto pending_tiling = pending_tiling_set->tiling_at(0);
 755       EXPECT_EQ(
 756           pending_tiling->TilingDataForTesting().max_texture_size().width(),
 757           active_tiling->TilingDataForTesting().max_texture_size().width());
 758     }
 759   }
 760
 761   void DidCommitAndDrawFrame() override {
 762     // On the second commit, resize the viewport.
 763     if (num_draws_ == 1) {
 764       layer_tree_host()->SetViewportSize(gfx::Size(400, 64));
 765     }
 766   }
 767
 768   void AfterTest() override {}
 769
 770  private:
 771   int num_draws_;
 772   const gfx::Size bounds_;
 773   const gfx::Rect invalid_rect_;
 774   FakeContentLayerClient client_;
 775   scoped_refptr<FakePictureLayer> root_layer_;
 776 };
 777
 778 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestGpuRasterDeviceSizeChanged);
 779
 780 class LayerTreeHostTestNoExtraCommitFromInvalidate : public LayerTreeHostTest {
 781  public:
 782   void InitializeSettings(LayerTreeSettings* settings) override {
 783     settings->layer_transforms_should_scale_layer_contents = true;
 784   }
 785
 786   void SetupTree() override {
 787     root_layer_ = Layer::Create(layer_settings());
 788     root_layer_->SetBounds(gfx::Size(10, 20));
 789     root_layer_->CreateRenderSurface();
 790
 791     scaled_layer_ = FakePictureLayer::Create(layer_settings(), &client_);
 792     scaled_layer_->SetBounds(gfx::Size(1, 1));
 793     root_layer_->AddChild(scaled_layer_);
 794
 795     layer_tree_host()->SetRootLayer(root_layer_);
 796     LayerTreeHostTest::SetupTree();
 797   }
 798
 799   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
 800
 801   void DrawLayersOnThread(LayerTreeHostImpl* host_impl) override {
 802     if (host_impl->active_tree()->source_frame_number() == 1)
 803       EndTest();
 804   }
 805
 806   void DidCommit() override {
 807     switch (layer_tree_host()->source_frame_number()) {
 808       case 1:
 809         // SetBounds grows the layer and exposes new content.
 810         scaled_layer_->SetBounds(gfx::Size(4, 4));
 811         break;
 812       default:
 813         // No extra commits.
 814         EXPECT_EQ(2, layer_tree_host()->source_frame_number());
 815     }
 816   }
 817
 818   void AfterTest() override {
 819     EXPECT_EQ(gfx::Size(4, 4).ToString(), scaled_layer_->bounds().ToString());
 820   }
 821
 822  private:
 823   FakeContentLayerClient client_;
 824   scoped_refptr<Layer> root_layer_;
 825   scoped_refptr<Layer> scaled_layer_;
 826 };
 827
 828 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestNoExtraCommitFromInvalidate);
 829
 830 class LayerTreeHostTestNoExtraCommitFromScrollbarInvalidate
 831     : public LayerTreeHostTest {
 832  public:
 833   void InitializeSettings(LayerTreeSettings* settings) override {
 834     settings->layer_transforms_should_scale_layer_contents = true;
 835   }
 836
 837   void SetupTree() override {
 838     root_layer_ = Layer::Create(layer_settings());
 839     root_layer_->SetBounds(gfx::Size(10, 20));
 840     root_layer_->CreateRenderSurface();
 841
 842     bool paint_scrollbar = true;
 843     bool has_thumb = false;
 844     scrollbar_ = FakePaintedScrollbarLayer::Create(
 845         layer_settings(), paint_scrollbar, has_thumb, root_layer_->id());
 846     scrollbar_->SetPosition(gfx::Point(0, 10));
 847     scrollbar_->SetBounds(gfx::Size(10, 10));
 848
 849     root_layer_->AddChild(scrollbar_);
 850
 851     layer_tree_host()->SetRootLayer(root_layer_);
 852     LayerTreeHostTest::SetupTree();
 853   }
 854
 855   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
 856
 857   void DrawLayersOnThread(LayerTreeHostImpl* host_impl) override {
 858     if (host_impl->active_tree()->source_frame_number() == 1)
 859       EndTest();
 860   }
 861
 862   void DidCommit() override {
 863     switch (layer_tree_host()->source_frame_number()) {
 864       case 1:
 865         // Changing the device scale factor causes a commit. It also changes
 866         // the content bounds of |scrollbar_|, which should not generate
 867         // a second commit as a result.
 868         layer_tree_host()->SetDeviceScaleFactor(4.f);
 869         break;
 870       default:
 871         // No extra commits.
 872         EXPECT_EQ(2, layer_tree_host()->source_frame_number());
 873         break;
 874     }
 875   }
 876
 877   void AfterTest() override {
 878   }
 879
 880  private:
 881   FakeContentLayerClient client_;
 882   scoped_refptr<Layer> root_layer_;
 883   scoped_refptr<FakePaintedScrollbarLayer> scrollbar_;
 884 };
 885
 886 SINGLE_AND_MULTI_THREAD_TEST_F(
 887     LayerTreeHostTestNoExtraCommitFromScrollbarInvalidate);
 888
 889 class LayerTreeHostTestSetNextCommitForcesRedraw : public LayerTreeHostTest {
 890  public:
 891   LayerTreeHostTestSetNextCommitForcesRedraw()
 892       : num_draws_(0), bounds_(50, 50), invalid_rect_(10, 10, 20, 20) {}
 893
 894   void BeginTest() override {
 895     root_layer_ = FakePictureLayer::Create(layer_settings(), &client_);
 896     root_layer_->SetIsDrawable(true);
 897     root_layer_->SetBounds(bounds_);
 898     layer_tree_host()->SetRootLayer(root_layer_);
 899     layer_tree_host()->SetViewportSize(bounds_);
 900     PostSetNeedsCommitToMainThread();
 901   }
 902
 903   void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) override {
 904     if (num_draws_ == 3)
 905       host_impl->SetNeedsRedrawRect(invalid_rect_);
 906   }
 907
 908   DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
 909                                    LayerTreeHostImpl::FrameData* frame_data,
 910                                    DrawResult draw_result) override {
 911     EXPECT_EQ(DRAW_SUCCESS, draw_result);
 912
 913     gfx::RectF root_damage_rect;
 914     if (!frame_data->render_passes.empty())
 915       root_damage_rect = frame_data->render_passes.back()->damage_rect;
 916
 917     switch (num_draws_) {
 918       case 0:
 919         EXPECT_EQ(gfx::Rect(bounds_), root_damage_rect);
 920         break;
 921       case 1:
 922       case 2:
 923         EXPECT_EQ(gfx::Rect(0, 0, 0, 0), root_damage_rect);
 924         break;
 925       case 3:
 926         EXPECT_EQ(invalid_rect_, root_damage_rect);
 927         break;
 928       case 4:
 929         EXPECT_EQ(gfx::Rect(bounds_), root_damage_rect);
 930         break;
 931       default:
 932         NOTREACHED();
 933     }
 934
 935     return draw_result;
 936   }
 937
 938   void DrawLayersOnThread(LayerTreeHostImpl* host_impl) override {
 939     switch (num_draws_) {
 940       case 0:
 941       case 1:
 942         // Cycle through a couple of empty commits to ensure we're observing the
 943         // right behavior
 944         PostSetNeedsCommitToMainThread();
 945         break;
 946       case 2:
 947         // Should force full frame damage on the next commit
 948         PostSetNextCommitForcesRedrawToMainThread();
 949         PostSetNeedsCommitToMainThread();
 950         host_impl->BlockNotifyReadyToActivateForTesting(true);
 951         break;
 952       case 3:
 953         host_impl->BlockNotifyReadyToActivateForTesting(false);
 954         break;
 955       default:
 956         EndTest();
 957         break;
 958     }
 959     num_draws_++;
 960   }
 961
 962   void AfterTest() override { EXPECT_EQ(5, num_draws_); }
 963
 964  private:
 965   int num_draws_;
 966   const gfx::Size bounds_;
 967   const gfx::Rect invalid_rect_;
 968   FakeContentLayerClient client_;
 969   scoped_refptr<FakePictureLayer> root_layer_;
 970 };
 971
 972 // This test blocks activation which is not supported for single thread mode.
 973 MULTI_THREAD_BLOCKNOTIFY_TEST_F(LayerTreeHostTestSetNextCommitForcesRedraw);
 974
 975 // Tests that if a layer is not drawn because of some reason in the parent then
 976 // its damage is preserved until the next time it is drawn.
 977 class LayerTreeHostTestUndrawnLayersDamageLater : public LayerTreeHostTest {
 978  public:
 979   void InitializeSettings(LayerTreeSettings* settings) override {
 980     // If we don't set the minimum contents scale, it's harder to verify whether
 981     // the damage we get is correct. For other scale amounts, please see
 982     // LayerTreeHostTestDamageWithScale.
 983     settings->minimum_contents_scale = 1.f;
 984   }
 985
 986   void SetupTree() override {
 987     root_layer_ = FakePictureLayer::Create(layer_settings(), &client_);
 988     root_layer_->SetIsDrawable(true);
 989     root_layer_->SetBounds(gfx::Size(50, 50));
 990     layer_tree_host()->SetRootLayer(root_layer_);
 991
 992     // The initially transparent layer has a larger child layer, which is
 993     // not initially drawn because of the this (parent) layer.
 994     parent_layer_ = FakePictureLayer::Create(layer_settings(), &client_);
 995     parent_layer_->SetBounds(gfx::Size(15, 15));
 996     parent_layer_->SetOpacity(0.0f);
 997     root_layer_->AddChild(parent_layer_);
 998
 999     child_layer_ = FakePictureLayer::Create(layer_settings(), &client_);
1000     child_layer_->SetBounds(gfx::Size(25, 25));
1001     parent_layer_->AddChild(child_layer_);
1002
1003     LayerTreeHostTest::SetupTree();
1004   }
1005
1006   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
1007
1008   DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
1009                                    LayerTreeHostImpl::FrameData* frame_data,
1010                                    DrawResult draw_result) override {
1011     EXPECT_EQ(DRAW_SUCCESS, draw_result);
1012
1013     gfx::RectF root_damage_rect;
1014     if (!frame_data->render_passes.empty())
1015       root_damage_rect = frame_data->render_passes.back()->damage_rect;
1016
1017     // The first time, the whole view needs be drawn.
1018     // Afterwards, just the opacity of surface_layer1 is changed a few times,
1019     // and each damage should be the bounding box of it and its child. If this
1020     // was working improperly, the damage might not include its childs bounding
1021     // box.
1022     switch (host_impl->active_tree()->source_frame_number()) {
1023       case 0:
1024         EXPECT_EQ(gfx::Rect(root_layer_->bounds()), root_damage_rect);
1025         break;
1026       case 1:
1027       case 2:
1028       case 3:
1029         EXPECT_EQ(gfx::Rect(child_layer_->bounds()), root_damage_rect);
1030         break;
1031       default:
1032         NOTREACHED();
1033     }
1034
1035     return draw_result;
1036   }
1037
1038   void DidCommitAndDrawFrame() override {
1039     switch (layer_tree_host()->source_frame_number()) {
1040       case 1:
1041         // Test not owning the surface.
1042         parent_layer_->SetOpacity(1.0f);
1043         break;
1044       case 2:
1045         parent_layer_->SetOpacity(0.0f);
1046         break;
1047       case 3:
1048         // Test owning the surface.
1049         parent_layer_->SetOpacity(0.5f);
1050         parent_layer_->SetForceRenderSurface(true);
1051         break;
1052       case 4:
1053         EndTest();
1054         break;
1055       default:
1056         NOTREACHED();
1057     }
1058   }
1059
1060   void AfterTest() override {}
1061
1062  private:
1063   FakeContentLayerClient client_;
1064   scoped_refptr<FakePictureLayer> root_layer_;
1065   scoped_refptr<FakePictureLayer> parent_layer_;
1066   scoped_refptr<FakePictureLayer> child_layer_;
1067 };
1068
1069 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestUndrawnLayersDamageLater);
1070
1071 // Tests that if a layer is not drawn because of some reason in the parent then
1072 // its damage is preserved until the next time it is drawn.
1073 class LayerTreeHostTestDamageWithScale : public LayerTreeHostTest {
1074  public:
1075   LayerTreeHostTestDamageWithScale() {}
1076
1077   void SetupTree() override {
1078     client_.set_fill_with_nonsolid_color(true);
1079
1080     scoped_ptr<FakePicturePile> pile(
1081         new FakePicturePile(LayerTreeSettings().minimum_contents_scale,
1082                             LayerTreeSettings().default_tile_grid_size));
1083     root_layer_ = FakePictureLayer::CreateWithRecordingSource(
1084         layer_settings(), &client_, pile.Pass());
1085     root_layer_->SetBounds(gfx::Size(50, 50));
1086
1087     pile.reset(new FakePicturePile(LayerTreeSettings().minimum_contents_scale,
1088                                    LayerTreeSettings().default_tile_grid_size));
1089     child_layer_ = FakePictureLayer::CreateWithRecordingSource(
1090         layer_settings(), &client_, pile.Pass());
1091     child_layer_->SetBounds(gfx::Size(25, 25));
1092     child_layer_->SetIsDrawable(true);
1093     child_layer_->SetContentsOpaque(true);
1094     root_layer_->AddChild(child_layer_);
1095
1096     layer_tree_host()->SetRootLayer(root_layer_);
1097     LayerTreeHostTest::SetupTree();
1098   }
1099
1100   void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) override {
1101     // Force the layer to have a tiling at 1.3f scale. Note that if we simply
1102     // add tiling, it will be gone by the time we draw because of aggressive
1103     // cleanup. AddTilingUntilNextDraw ensures that it remains there during
1104     // damage calculation.
1105     FakePictureLayerImpl* child_layer_impl = static_cast<FakePictureLayerImpl*>(
1106         host_impl->active_tree()->LayerById(child_layer_->id()));
1107     child_layer_impl->AddTilingUntilNextDraw(1.3f);
1108   }
1109
1110   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
1111
1112   DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
1113                                    LayerTreeHostImpl::FrameData* frame_data,
1114                                    DrawResult draw_result) override {
1115     EXPECT_EQ(DRAW_SUCCESS, draw_result);
1116
1117     gfx::RectF root_damage_rect;
1118     if (!frame_data->render_passes.empty())
1119       root_damage_rect = frame_data->render_passes.back()->damage_rect;
1120
1121     // The first time, the whole view needs be drawn.
1122     // Afterwards, just the opacity of surface_layer1 is changed a few times,
1123     // and each damage should be the bounding box of it and its child. If this
1124     // was working improperly, the damage might not include its childs bounding
1125     // box.
1126     switch (host_impl->active_tree()->source_frame_number()) {
1127       case 0:
1128         EXPECT_EQ(gfx::Rect(root_layer_->bounds()), root_damage_rect);
1129         break;
1130       case 1: {
1131         FakePictureLayerImpl* child_layer_impl =
1132             static_cast<FakePictureLayerImpl*>(
1133                 host_impl->active_tree()->LayerById(child_layer_->id()));
1134         // We remove tilings pretty aggressively if they are not ideal. Add this
1135         // back in so that we can compare
1136         // child_layer_impl->GetEnclosingRectInTargetSpace to the damage.
1137         child_layer_impl->AddTilingUntilNextDraw(1.3f);
1138
1139         EXPECT_EQ(gfx::Rect(26, 26), root_damage_rect);
1140         EXPECT_EQ(child_layer_impl->GetEnclosingRectInTargetSpace(),
1141                   root_damage_rect);
1142         EXPECT_TRUE(child_layer_impl->GetEnclosingRectInTargetSpace().Contains(
1143             gfx::Rect(child_layer_->bounds())));
1144         break;
1145       }
1146       default:
1147         NOTREACHED();
1148     }
1149
1150     return draw_result;
1151   }
1152
1153   void DidCommitAndDrawFrame() override {
1154     switch (layer_tree_host()->source_frame_number()) {
1155       case 1: {
1156         // Test not owning the surface.
1157         child_layer_->SetOpacity(0.5f);
1158         break;
1159       }
1160       case 2:
1161         EndTest();
1162         break;
1163       default:
1164         NOTREACHED();
1165     }
1166   }
1167
1168   void AfterTest() override {}
1169
1170  private:
1171   FakeContentLayerClient client_;
1172   scoped_refptr<Layer> root_layer_;
1173   scoped_refptr<Layer> child_layer_;
1174 };
1175
1176 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestDamageWithScale);
1177
1178 // This test verifies that properties on the layer tree host are commited
1179 // to the impl side.
1180 class LayerTreeHostTestCommit : public LayerTreeHostTest {
1181  public:
1182   LayerTreeHostTestCommit() {}
1183
1184   void BeginTest() override {
1185     layer_tree_host()->SetViewportSize(gfx::Size(20, 20));
1186     layer_tree_host()->set_background_color(SK_ColorGRAY);
1187
1188     PostSetNeedsCommitToMainThread();
1189   }
1190
1191   void DidActivateTreeOnThread(LayerTreeHostImpl* impl) override {
1192     EXPECT_EQ(gfx::Size(20, 20), impl->DrawViewportSize());
1193     EXPECT_EQ(SK_ColorGRAY, impl->active_tree()->background_color());
1194
1195     EndTest();
1196   }
1197
1198   void AfterTest() override {}
1199 };
1200
1201 MULTI_THREAD_TEST_F(LayerTreeHostTestCommit);
1202
1203 // This test verifies that LayerTreeHostImpl's current frame time gets
1204 // updated in consecutive frames when it doesn't draw due to tree
1205 // activation failure.
1206 class LayerTreeHostTestFrameTimeUpdatesAfterActivationFails
1207     : public LayerTreeHostTest {
1208  public:
1209   LayerTreeHostTestFrameTimeUpdatesAfterActivationFails()
1210       : frame_count_with_pending_tree_(0) {}
1211
1212   void BeginTest() override {
1213     layer_tree_host()->SetViewportSize(gfx::Size(20, 20));
1214     layer_tree_host()->set_background_color(SK_ColorGRAY);
1215
1216     PostSetNeedsCommitToMainThread();
1217   }
1218
1219   void BeginCommitOnThread(LayerTreeHostImpl* impl) override {
1220     EXPECT_EQ(frame_count_with_pending_tree_, 0);
1221     impl->BlockNotifyReadyToActivateForTesting(true);
1222   }
1223
1224   void WillBeginImplFrameOnThread(LayerTreeHostImpl* impl,
1225                                   const BeginFrameArgs& args) override {
1226     if (impl->pending_tree())
1227       frame_count_with_pending_tree_++;
1228
1229     if (frame_count_with_pending_tree_ == 1) {
1230       EXPECT_EQ(first_frame_time_.ToInternalValue(), 0);
1231       first_frame_time_ = impl->CurrentBeginFrameArgs().frame_time;
1232     } else if (frame_count_with_pending_tree_ == 2) {
1233       impl->BlockNotifyReadyToActivateForTesting(false);
1234     }
1235   }
1236
1237   void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
1238     EXPECT_GT(frame_count_with_pending_tree_, 1);
1239     EXPECT_NE(first_frame_time_.ToInternalValue(), 0);
1240     EXPECT_NE(first_frame_time_.ToInternalValue(),
1241               impl->CurrentBeginFrameArgs().frame_time.ToInternalValue());
1242     EndTest();
1243   }
1244
1245   void DidActivateTreeOnThread(LayerTreeHostImpl* impl) override {
1246     EXPECT_GT(frame_count_with_pending_tree_, 1);
1247   }
1248
1249   void AfterTest() override {}
1250
1251  private:
1252   int frame_count_with_pending_tree_;
1253   base::TimeTicks first_frame_time_;
1254 };
1255
1256 // This test blocks activation which is not supported for single thread mode.
1257 MULTI_THREAD_BLOCKNOTIFY_TEST_F(
1258     LayerTreeHostTestFrameTimeUpdatesAfterActivationFails);
1259
1260 // This test verifies that LayerTreeHostImpl's current frame time gets
1261 // updated in consecutive frames when it draws in each frame.
1262 class LayerTreeHostTestFrameTimeUpdatesAfterDraw : public LayerTreeHostTest {
1263  public:
1264   LayerTreeHostTestFrameTimeUpdatesAfterDraw() : frame_(0) {}
1265
1266   void BeginTest() override {
1267     layer_tree_host()->SetViewportSize(gfx::Size(20, 20));
1268     layer_tree_host()->set_background_color(SK_ColorGRAY);
1269
1270     PostSetNeedsCommitToMainThread();
1271   }
1272
1273   void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
1274     frame_++;
1275     if (frame_ == 1) {
1276       first_frame_time_ = impl->CurrentBeginFrameArgs().frame_time;
1277       impl->SetNeedsRedraw();
1278
1279       // Since we might use a low-resolution clock on Windows, we need to
1280       // make sure that the clock has incremented past first_frame_time_.
1281       while (first_frame_time_ == base::TimeTicks::Now()) {
1282       }
1283
1284       return;
1285     }
1286
1287     EXPECT_NE(first_frame_time_, impl->CurrentBeginFrameArgs().frame_time);
1288     EndTest();
1289   }
1290
1291   void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) override {
1292     // Ensure there isn't a commit between the two draws, to ensure that a
1293     // commit isn't required for updating the current frame time. We can
1294     // only check for this in the multi-threaded case, since in the single-
1295     // threaded case there will always be a commit between consecutive draws.
1296     if (HasImplThread())
1297       EXPECT_EQ(0, frame_);
1298   }
1299
1300   void AfterTest() override {}
1301
1302  private:
1303   int frame_;
1304   base::TimeTicks first_frame_time_;
1305 };
1306
1307 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestFrameTimeUpdatesAfterDraw);
1308
1309 // Verifies that StartPageScaleAnimation events propagate correctly
1310 // from LayerTreeHost to LayerTreeHostImpl in the MT compositor.
1311 class LayerTreeHostTestStartPageScaleAnimation : public LayerTreeHostTest {
1312  public:
1313   LayerTreeHostTestStartPageScaleAnimation() {}
1314
1315   void SetupTree() override {
1316     LayerTreeHostTest::SetupTree();
1317
1318     Layer* root_layer = layer_tree_host()->root_layer();
1319
1320     scoped_refptr<FakePictureLayer> layer =
1321         FakePictureLayer::Create(layer_settings(), &client_);
1322     layer->set_always_update_resources(true);
1323     scroll_layer_ = layer;
1324
1325     scroll_layer_->SetBounds(gfx::Size(2 * root_layer->bounds().width(),
1326                                        2 * root_layer->bounds().height()));
1327     scroll_layer_->SetScrollOffset(gfx::ScrollOffset());
1328
1329     CreateVirtualViewportLayers(root_layer,
1330                                 scroll_layer_,
1331                                 root_layer->bounds(),
1332                                 root_layer->bounds(),
1333                                 layer_tree_host(),
1334                                 layer_settings());
1335
1336     layer_tree_host()->SetPageScaleFactorAndLimits(1.f, 0.5f, 2.f);
1337   }
1338
1339   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
1340
1341   void ApplyViewportDeltas(const gfx::Vector2dF& scroll_delta,
1342                            const gfx::Vector2dF&,
1343                            const gfx::Vector2dF& elastic_overscroll_delta,
1344                            float scale,
1345                            float) override {
1346     gfx::ScrollOffset offset = scroll_layer_->scroll_offset();
1347     scroll_layer_->SetScrollOffset(ScrollOffsetWithDelta(offset,
1348                                                          scroll_delta));
1349     layer_tree_host()->SetPageScaleFactorAndLimits(scale, 0.5f, 2.f);
1350   }
1351
1352   void DidActivateTreeOnThread(LayerTreeHostImpl* impl) override {
1353     // We get one commit before the first draw, and the animation doesn't happen
1354     // until the second draw.
1355     switch (impl->active_tree()->source_frame_number()) {
1356       case 0:
1357         EXPECT_EQ(1.f, impl->active_tree()->current_page_scale_factor());
1358         // We'll start an animation when we get back to the main thread.
1359         break;
1360       case 1:
1361         EXPECT_EQ(1.f, impl->active_tree()->current_page_scale_factor());
1362         break;
1363       case 2:
1364         EXPECT_EQ(1.25f, impl->active_tree()->current_page_scale_factor());
1365         EndTest();
1366         break;
1367       default:
1368         NOTREACHED();
1369     }
1370   }
1371
1372   void DidCommitAndDrawFrame() override {
1373     switch (layer_tree_host()->source_frame_number()) {
1374       case 1:
1375         layer_tree_host()->StartPageScaleAnimation(
1376             gfx::Vector2d(), false, 1.25f, base::TimeDelta());
1377         break;
1378     }
1379   }
1380
1381   void AfterTest() override {}
1382
1383   FakeContentLayerClient client_;
1384   scoped_refptr<Layer> scroll_layer_;
1385 };
1386
1387 // Single thread proxy does not support impl-side page scale changes.
1388 MULTI_THREAD_TEST_F(LayerTreeHostTestStartPageScaleAnimation);
1389
1390 class LayerTreeHostTestSetVisible : public LayerTreeHostTest {
1391  public:
1392   LayerTreeHostTestSetVisible() : num_draws_(0) {}
1393
1394   void BeginTest() override {
1395     PostSetNeedsCommitToMainThread();
1396     PostSetVisibleToMainThread(false);
1397     // This is suppressed while we're invisible.
1398     PostSetNeedsRedrawToMainThread();
1399     // Triggers the redraw.
1400     PostSetVisibleToMainThread(true);
1401   }
1402
1403   void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
1404     EXPECT_TRUE(impl->visible());
1405     ++num_draws_;
1406     EndTest();
1407   }
1408
1409   void AfterTest() override { EXPECT_EQ(1, num_draws_); }
1410
1411  private:
1412   int num_draws_;
1413 };
1414
1415 MULTI_THREAD_TEST_F(LayerTreeHostTestSetVisible);
1416
1417 class TestOpacityChangeLayerDelegate : public ContentLayerClient {
1418  public:
1419   TestOpacityChangeLayerDelegate() : test_layer_(0) {}
1420
1421   void SetTestLayer(Layer* test_layer) { test_layer_ = test_layer; }
1422
1423   void PaintContents(SkCanvas* canvas,
1424                      const gfx::Rect& clip,
1425                      PaintingControlSetting picture_control) override {
1426     // Set layer opacity to 0.
1427     if (test_layer_)
1428       test_layer_->SetOpacity(0.f);
1429   }
1430   scoped_refptr<DisplayItemList> PaintContentsToDisplayList(
1431       const gfx::Rect& clip,
1432       PaintingControlSetting picture_control) override {
1433     NOTIMPLEMENTED();
1434     return nullptr;
1435   }
1436   bool FillsBoundsCompletely() const override { return false; }
1437   size_t GetApproximateUnsharedMemoryUsage() const override { return 0; }
1438
1439  private:
1440   Layer* test_layer_;
1441 };
1442
1443 // Layer opacity change during paint should not prevent compositor resources
1444 // from being updated during commit.
1445 class LayerTreeHostTestOpacityChange : public LayerTreeHostTest {
1446  public:
1447   LayerTreeHostTestOpacityChange() : test_opacity_change_delegate_() {}
1448
1449   void SetupTree() override {
1450     LayerTreeHostTest::SetupTree();
1451
1452     update_check_picture_layer_ = FakePictureLayer::Create(
1453         layer_settings(), &test_opacity_change_delegate_);
1454     test_opacity_change_delegate_.SetTestLayer(
1455         update_check_picture_layer_.get());
1456     layer_tree_host()->root_layer()->AddChild(update_check_picture_layer_);
1457   }
1458
1459   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
1460
1461   void CommitCompleteOnThread(LayerTreeHostImpl* impl) override { EndTest(); }
1462
1463   void AfterTest() override {
1464     // Update() should have been called once.
1465     EXPECT_EQ(1, update_check_picture_layer_->update_count());
1466   }
1467
1468  private:
1469   TestOpacityChangeLayerDelegate test_opacity_change_delegate_;
1470   scoped_refptr<FakePictureLayer> update_check_picture_layer_;
1471 };
1472
1473 MULTI_THREAD_TEST_F(LayerTreeHostTestOpacityChange);
1474
1475 class LayerTreeHostTestDeviceScaleFactorScalesViewportAndLayers
1476     : public LayerTreeHostTest {
1477  public:
1478   LayerTreeHostTestDeviceScaleFactorScalesViewportAndLayers() {}
1479
1480   void BeginTest() override {
1481     client_.set_fill_with_nonsolid_color(true);
1482     root_layer_ = FakePictureLayer::Create(layer_settings(), &client_);
1483     child_layer_ = FakePictureLayer::Create(layer_settings(), &client_);
1484
1485     layer_tree_host()->SetViewportSize(gfx::Size(60, 60));
1486     layer_tree_host()->SetDeviceScaleFactor(1.5);
1487     EXPECT_EQ(gfx::Size(60, 60), layer_tree_host()->device_viewport_size());
1488
1489     root_layer_->AddChild(child_layer_);
1490
1491     root_layer_->SetIsDrawable(true);
1492     root_layer_->SetBounds(gfx::Size(30, 30));
1493
1494     child_layer_->SetIsDrawable(true);
1495     child_layer_->SetPosition(gfx::Point(2, 2));
1496     child_layer_->SetBounds(gfx::Size(10, 10));
1497
1498     layer_tree_host()->SetRootLayer(root_layer_);
1499
1500     PostSetNeedsCommitToMainThread();
1501   }
1502
1503   void DidActivateTreeOnThread(LayerTreeHostImpl* impl) override {
1504     // Should only do one commit.
1505     EXPECT_EQ(0, impl->active_tree()->source_frame_number());
1506     // Device scale factor should come over to impl.
1507     EXPECT_NEAR(impl->device_scale_factor(), 1.5f, 0.00001f);
1508
1509     // Both layers are on impl.
1510     ASSERT_EQ(1u, impl->active_tree()->root_layer()->children().size());
1511
1512     // Device viewport is scaled.
1513     EXPECT_EQ(gfx::Size(60, 60), impl->DrawViewportSize());
1514
1515     FakePictureLayerImpl* root =
1516         static_cast<FakePictureLayerImpl*>(impl->active_tree()->root_layer());
1517     FakePictureLayerImpl* child = static_cast<FakePictureLayerImpl*>(
1518         impl->active_tree()->root_layer()->children()[0]);
1519
1520     // Positions remain in layout pixels.
1521     EXPECT_EQ(gfx::Point(0, 0), root->position());
1522     EXPECT_EQ(gfx::Point(2, 2), child->position());
1523
1524     // Compute all the layer transforms for the frame.
1525     LayerTreeHostImpl::FrameData frame_data;
1526     impl->PrepareToDraw(&frame_data);
1527     impl->DidDrawAllLayers(frame_data);
1528
1529     const LayerImplList& render_surface_layer_list =
1530         *frame_data.render_surface_layer_list;
1531
1532     // Both layers should be drawing into the root render surface.
1533     ASSERT_EQ(1u, render_surface_layer_list.size());
1534     ASSERT_EQ(root->render_surface(),
1535               render_surface_layer_list[0]->render_surface());
1536     ASSERT_EQ(2u, root->render_surface()->layer_list().size());
1537
1538     // The root render surface is the size of the viewport.
1539     EXPECT_EQ(gfx::Rect(0, 0, 60, 60), root->render_surface()->content_rect());
1540
1541     // The max tiling scale of the child should be scaled.
1542     EXPECT_FLOAT_EQ(1.5f, child->MaximumTilingContentsScale());
1543
1544     gfx::Transform scale_transform;
1545     scale_transform.Scale(impl->device_scale_factor(),
1546                           impl->device_scale_factor());
1547
1548     // The root layer is scaled by 2x.
1549     gfx::Transform root_screen_space_transform = scale_transform;
1550     gfx::Transform root_draw_transform = scale_transform;
1551
1552     EXPECT_EQ(root_draw_transform, root->draw_transform());
1553     EXPECT_EQ(root_screen_space_transform, root->screen_space_transform());
1554
1555     // The child is at position 2,2, which is transformed to 3,3 after the scale
1556     gfx::Transform child_transform;
1557     child_transform.Translate(3.f, 3.f);
1558     child_transform.Scale(child->MaximumTilingContentsScale(),
1559                           child->MaximumTilingContentsScale());
1560
1561     EXPECT_TRANSFORMATION_MATRIX_EQ(child_transform, child->draw_transform());
1562     EXPECT_TRANSFORMATION_MATRIX_EQ(child_transform,
1563                                     child->screen_space_transform());
1564
1565     EndTest();
1566   }
1567
1568   void AfterTest() override {}
1569
1570  private:
1571   FakeContentLayerClient client_;
1572   scoped_refptr<FakePictureLayer> root_layer_;
1573   scoped_refptr<FakePictureLayer> child_layer_;
1574 };
1575
1576 MULTI_THREAD_TEST_F(LayerTreeHostTestDeviceScaleFactorScalesViewportAndLayers);
1577
1578 class LayerTreeHostTestContinuousInvalidate : public LayerTreeHostTest {
1579  public:
1580   LayerTreeHostTestContinuousInvalidate()
1581       : num_commit_complete_(0), num_draw_layers_(0) {}
1582
1583   void BeginTest() override {
1584     layer_tree_host()->SetViewportSize(gfx::Size(10, 10));
1585     layer_tree_host()->root_layer()->SetBounds(gfx::Size(10, 10));
1586
1587     layer_ = FakePictureLayer::Create(layer_settings(), &client_);
1588     layer_->SetBounds(gfx::Size(10, 10));
1589     layer_->SetPosition(gfx::PointF(0.f, 0.f));
1590     layer_->SetIsDrawable(true);
1591     layer_tree_host()->root_layer()->AddChild(layer_);
1592
1593     PostSetNeedsCommitToMainThread();
1594   }
1595
1596   void DidCommitAndDrawFrame() override {
1597     if (num_draw_layers_ == 2)
1598       return;
1599     layer_->SetNeedsDisplay();
1600   }
1601
1602   void CommitCompleteOnThread(LayerTreeHostImpl* impl) override {
1603     if (num_draw_layers_ == 1)
1604       num_commit_complete_++;
1605   }
1606
1607   void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
1608     num_draw_layers_++;
1609     if (num_draw_layers_ == 2)
1610       EndTest();
1611   }
1612
1613   void AfterTest() override {
1614     // Check that we didn't commit twice between first and second draw.
1615     EXPECT_EQ(1, num_commit_complete_);
1616   }
1617
1618  private:
1619   FakeContentLayerClient client_;
1620   scoped_refptr<Layer> layer_;
1621   int num_commit_complete_;
1622   int num_draw_layers_;
1623 };
1624
1625 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestContinuousInvalidate);
1626
1627 class LayerTreeHostTestDeferCommits : public LayerTreeHostTest {
1628  public:
1629   LayerTreeHostTestDeferCommits()
1630       : num_will_begin_impl_frame_(0),
1631         num_send_begin_main_frame_(0) {}
1632
1633   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
1634
1635   void WillBeginImplFrameOnThread(LayerTreeHostImpl* host_impl,
1636                                   const BeginFrameArgs& args) override {
1637     num_will_begin_impl_frame_++;
1638     switch (num_will_begin_impl_frame_) {
1639       case 1:
1640         break;
1641       case 2:
1642       case 3:
1643       case 4:
1644         // Post a number of frames to increase the chance that, if there exist
1645         // bugs, an unexpected BeginMainFrame will be issued.
1646         PostSetNeedsCommitToMainThread();
1647         PostSetNeedsRedrawToMainThread();
1648         break;
1649       case 5:
1650         PostSetDeferCommitsToMainThread(false);
1651         break;
1652       default:
1653         // Sometimes |num_will_begin_impl_frame_| will be greater than 5 if the
1654         // main thread is slow to respond.
1655         break;
1656     }
1657   }
1658
1659   void ScheduledActionSendBeginMainFrame() override {
1660     num_send_begin_main_frame_++;
1661     switch (num_send_begin_main_frame_) {
1662       case 1:
1663         PostSetDeferCommitsToMainThread(true);
1664         break;
1665       case 2:
1666         EndTest();
1667         break;
1668       default:
1669         NOTREACHED();
1670         break;
1671     }
1672   }
1673
1674   void AfterTest() override {
1675     EXPECT_GE(num_will_begin_impl_frame_, 5);
1676     EXPECT_EQ(2, num_send_begin_main_frame_);
1677   }
1678
1679  private:
1680   int num_will_begin_impl_frame_;
1681   int num_send_begin_main_frame_;
1682 };
1683
1684 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestDeferCommits);
1685
1686 class LayerTreeHostTestCompositeImmediatelyStateTransitions
1687     : public LayerTreeHostTest {
1688  public:
1689   enum {
1690     kInvalid,
1691     kStartedTest,
1692     kStartedImplFrame,
1693     kStartedMainFrame,
1694     kStartedCommit,
1695     kCompletedCommit,
1696     kCompletedMainFrame,
1697     kCompletedImplFrame,
1698   };
1699
1700   LayerTreeHostTestCompositeImmediatelyStateTransitions()
1701       : current_state_(kInvalid), current_begin_frame_args_() {}
1702
1703   void InitializeSettings(LayerTreeSettings* settings) override {
1704     settings->single_thread_proxy_scheduler = false;
1705     settings->use_zero_copy = true;
1706     settings->use_one_copy = false;
1707   }
1708
1709   void BeginTest() override {
1710     current_state_ = kStartedTest;
1711     PostCompositeImmediatelyToMainThread();
1712   }
1713
1714   void WillBeginImplFrameOnThread(LayerTreeHostImpl* host_impl,
1715                                   const BeginFrameArgs& args) override {
1716     EXPECT_EQ(current_state_, kStartedTest);
1717     current_state_ = kStartedImplFrame;
1718
1719     EXPECT_FALSE(current_begin_frame_args_.IsValid());
1720     EXPECT_TRUE(args.IsValid());
1721     current_begin_frame_args_ = args;
1722   }
1723   void WillBeginMainFrame() override {
1724     EXPECT_EQ(current_state_, kStartedImplFrame);
1725     current_state_ = kStartedMainFrame;
1726   }
1727   void BeginMainFrame(const BeginFrameArgs& args) override {
1728     EXPECT_EQ(current_state_, kStartedMainFrame);
1729     EXPECT_EQ(args.frame_time, current_begin_frame_args_.frame_time);
1730   }
1731   void BeginCommitOnThread(LayerTreeHostImpl* host_impl) override {
1732     EXPECT_EQ(current_state_, kStartedMainFrame);
1733     current_state_ = kStartedCommit;
1734   }
1735   void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) override {
1736     EXPECT_EQ(current_state_, kStartedCommit);
1737     current_state_ = kCompletedCommit;
1738   }
1739   void DidBeginMainFrame() override {
1740     EXPECT_EQ(current_state_, kCompletedCommit);
1741     current_state_ = kCompletedMainFrame;
1742   }
1743   void DidFinishImplFrameOnThread(LayerTreeHostImpl* host_impl) override {
1744     EXPECT_EQ(current_state_, kCompletedMainFrame);
1745     current_state_ = kCompletedImplFrame;
1746     EndTest();
1747   }
1748   void AfterTest() override { EXPECT_EQ(current_state_, kCompletedImplFrame); }
1749
1750  private:
1751   int current_state_;
1752   BeginFrameArgs current_begin_frame_args_;
1753 };
1754
1755 SINGLE_THREAD_TEST_F(LayerTreeHostTestCompositeImmediatelyStateTransitions);
1756
1757 class LayerTreeHostTestLCDChange : public LayerTreeHostTest {
1758  public:
1759   void SetupTree() override {
1760     num_tiles_rastered_ = 0;
1761
1762     scoped_refptr<Layer> root_layer =
1763         PictureLayer::Create(layer_settings(), &client_);
1764     client_.set_fill_with_nonsolid_color(true);
1765     root_layer->SetIsDrawable(true);
1766     root_layer->SetBounds(gfx::Size(10, 10));
1767     root_layer->SetContentsOpaque(true);
1768
1769     layer_tree_host()->SetRootLayer(root_layer);
1770
1771     // The expectations are based on the assumption that the default
1772     // LCD settings are:
1773     EXPECT_TRUE(layer_tree_host()->settings().can_use_lcd_text);
1774
1775     LayerTreeHostTest::SetupTree();
1776   }
1777
1778   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
1779
1780   void DidCommitAndDrawFrame() override {
1781     switch (layer_tree_host()->source_frame_number()) {
1782       case 1:
1783         PostSetNeedsCommitToMainThread();
1784         break;
1785       case 2:
1786         // Change layer opacity that should trigger lcd change.
1787         layer_tree_host()->root_layer()->SetOpacity(.5f);
1788         break;
1789       case 3:
1790         // Change layer opacity that should not trigger lcd change.
1791         layer_tree_host()->root_layer()->SetOpacity(1.f);
1792         break;
1793       case 4:
1794         EndTest();
1795         break;
1796     }
1797   }
1798
1799   void NotifyTileStateChangedOnThread(LayerTreeHostImpl* host_impl,
1800                                       const Tile* tile) override {
1801     ++num_tiles_rastered_;
1802   }
1803
1804   void DrawLayersOnThread(LayerTreeHostImpl* host_impl) override {
1805     PictureLayerImpl* root_layer =
1806         static_cast<PictureLayerImpl*>(host_impl->active_tree()->root_layer());
1807     bool can_use_lcd_text =
1808         host_impl->active_tree()->root_layer()->can_use_lcd_text();
1809     switch (host_impl->active_tree()->source_frame_number()) {
1810       case 0:
1811         // The first draw.
1812         EXPECT_EQ(1, num_tiles_rastered_);
1813         EXPECT_TRUE(can_use_lcd_text);
1814         EXPECT_TRUE(root_layer->RasterSourceUsesLCDText());
1815         break;
1816       case 1:
1817         // Nothing changed on the layer.
1818         EXPECT_EQ(1, num_tiles_rastered_);
1819         EXPECT_TRUE(can_use_lcd_text);
1820         EXPECT_TRUE(root_layer->RasterSourceUsesLCDText());
1821         break;
1822       case 2:
1823         // LCD text was disabled; it should be re-rastered with LCD text off.
1824         EXPECT_EQ(2, num_tiles_rastered_);
1825         EXPECT_FALSE(can_use_lcd_text);
1826         EXPECT_FALSE(root_layer->RasterSourceUsesLCDText());
1827         break;
1828       case 3:
1829         // LCD text was enabled, but it's sticky and stays off.
1830         EXPECT_EQ(2, num_tiles_rastered_);
1831         EXPECT_TRUE(can_use_lcd_text);
1832         EXPECT_FALSE(root_layer->RasterSourceUsesLCDText());
1833         break;
1834     }
1835   }
1836
1837   void AfterTest() override {}
1838
1839  private:
1840   FakeContentLayerClient client_;
1841   int num_tiles_rastered_;
1842 };
1843
1844 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestLCDChange);
1845
1846 // Verify that the BeginFrame notification is used to initiate rendering.
1847 class LayerTreeHostTestBeginFrameNotification : public LayerTreeHostTest {
1848  public:
1849   void InitializeSettings(LayerTreeSettings* settings) override {
1850     settings->use_external_begin_frame_source = true;
1851   }
1852
1853   void BeginTest() override {
1854     // This will trigger a SetNeedsBeginFrame which will trigger a
1855     // BeginFrame.
1856     PostSetNeedsCommitToMainThread();
1857   }
1858
1859   DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
1860                                    LayerTreeHostImpl::FrameData* frame,
1861                                    DrawResult draw_result) override {
1862     EndTest();
1863     return DRAW_SUCCESS;
1864   }
1865
1866   void AfterTest() override {}
1867
1868  private:
1869   base::TimeTicks frame_time_;
1870 };
1871
1872 MULTI_THREAD_TEST_F(LayerTreeHostTestBeginFrameNotification);
1873
1874 class LayerTreeHostTestBeginFrameNotificationShutdownWhileEnabled
1875     : public LayerTreeHostTest {
1876  public:
1877   void InitializeSettings(LayerTreeSettings* settings) override {
1878     settings->use_external_begin_frame_source = true;
1879     settings->using_synchronous_renderer_compositor = true;
1880   }
1881
1882   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
1883
1884   void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) override {
1885     // The BeginFrame notification is turned off now but will get enabled
1886     // once we return. End test while it's enabled.
1887     ImplThreadTaskRunner()->PostTask(
1888         FROM_HERE,
1889         base::Bind(&LayerTreeHostTestBeginFrameNotification::EndTest,
1890                    base::Unretained(this)));
1891   }
1892
1893   void AfterTest() override {}
1894 };
1895
1896 MULTI_THREAD_TEST_F(
1897     LayerTreeHostTestBeginFrameNotificationShutdownWhileEnabled);
1898
1899 class LayerTreeHostTestAbortedCommitDoesntStall : public LayerTreeHostTest {
1900  protected:
1901   LayerTreeHostTestAbortedCommitDoesntStall()
1902       : commit_count_(0), commit_abort_count_(0), commit_complete_count_(0) {}
1903
1904   void InitializeSettings(LayerTreeSettings* settings) override {
1905     settings->use_external_begin_frame_source = true;
1906   }
1907
1908   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
1909
1910   void DidCommit() override {
1911     commit_count_++;
1912     if (commit_count_ == 4) {
1913       // After two aborted commits, request a real commit now to make sure a
1914       // real commit following an aborted commit will still complete and
1915       // end the test even when the Impl thread is idle.
1916       layer_tree_host()->SetNeedsCommit();
1917     }
1918   }
1919
1920   void BeginMainFrameAbortedOnThread(LayerTreeHostImpl* host_impl,
1921                                      CommitEarlyOutReason reason) override {
1922     commit_abort_count_++;
1923     // Initiate another abortable commit.
1924     host_impl->SetNeedsCommit();
1925   }
1926
1927   void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) override {
1928     commit_complete_count_++;
1929     if (commit_complete_count_ == 1) {
1930       // Initiate an abortable commit after the first commit.
1931       host_impl->SetNeedsCommit();
1932     } else {
1933       EndTest();
1934     }
1935   }
1936
1937   void AfterTest() override {
1938     EXPECT_EQ(commit_count_, 5);
1939     EXPECT_EQ(commit_abort_count_, 3);
1940     EXPECT_EQ(commit_complete_count_, 2);
1941   }
1942
1943   int commit_count_;
1944   int commit_abort_count_;
1945   int commit_complete_count_;
1946 };
1947
1948 class LayerTreeHostTestAbortedCommitDoesntStallSynchronousCompositor
1949     : public LayerTreeHostTestAbortedCommitDoesntStall {
1950  protected:
1951   void InitializeSettings(LayerTreeSettings* settings) override {
1952     LayerTreeHostTestAbortedCommitDoesntStall::InitializeSettings(settings);
1953     settings->using_synchronous_renderer_compositor = true;
1954   }
1955
1956   void ScheduledActionInvalidateOutputSurface() override {
1957     ImplThreadTaskRunner()->PostTask(
1958         FROM_HERE,
1959         base::Bind(
1960             &LayerTreeHostTestAbortedCommitDoesntStallSynchronousCompositor::
1961                 CallOnDraw,
1962             base::Unretained(this)));
1963   }
1964
1965   void CallOnDraw() {
1966     // Synchronous compositor does not draw unless told to do so by the output
1967     // surface.
1968     output_surface()->client()->OnDraw();
1969   }
1970 };
1971
1972 MULTI_THREAD_TEST_F(
1973     LayerTreeHostTestAbortedCommitDoesntStallSynchronousCompositor);
1974
1975 class LayerTreeHostTestAbortedCommitDoesntStallDisabledVsync
1976     : public LayerTreeHostTestAbortedCommitDoesntStall {
1977   void InitializeSettings(LayerTreeSettings* settings) override {
1978     LayerTreeHostTestAbortedCommitDoesntStall::InitializeSettings(settings);
1979     settings->wait_for_beginframe_interval = false;
1980     settings->renderer_settings.disable_display_vsync = true;
1981   }
1982 };
1983
1984 MULTI_THREAD_TEST_F(LayerTreeHostTestAbortedCommitDoesntStallDisabledVsync);
1985
1986 class LayerTreeHostTestUninvertibleTransformDoesNotBlockActivation
1987     : public LayerTreeHostTest {
1988  protected:
1989   void SetupTree() override {
1990     LayerTreeHostTest::SetupTree();
1991
1992     scoped_refptr<Layer> layer =
1993         PictureLayer::Create(layer_settings(), &client_);
1994     layer->SetTransform(gfx::Transform(0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
1995     layer->SetBounds(gfx::Size(10, 10));
1996     layer_tree_host()->root_layer()->AddChild(layer);
1997   }
1998
1999   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
2000
2001   void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) override {
2002     EndTest();
2003   }
2004
2005   void AfterTest() override {}
2006
2007   FakeContentLayerClient client_;
2008 };
2009
2010 SINGLE_AND_MULTI_THREAD_TEST_F(
2011     LayerTreeHostTestUninvertibleTransformDoesNotBlockActivation);
2012
2013 class LayerTreeHostTestChangeLayerPropertiesInPaintContents
2014     : public LayerTreeHostTest {
2015  public:
2016   class SetBoundsClient : public ContentLayerClient {
2017    public:
2018     SetBoundsClient() : layer_(0) {}
2019
2020     void set_layer(Layer* layer) { layer_ = layer; }
2021
2022     void PaintContents(SkCanvas* canvas,
2023                        const gfx::Rect& clip,
2024                        PaintingControlSetting picture_control) override {
2025       layer_->SetBounds(gfx::Size(2, 2));
2026     }
2027
2028     scoped_refptr<DisplayItemList> PaintContentsToDisplayList(
2029         const gfx::Rect& clip,
2030         PaintingControlSetting picture_control) override {
2031       NOTIMPLEMENTED();
2032       return nullptr;
2033     }
2034
2035     bool FillsBoundsCompletely() const override { return false; }
2036     size_t GetApproximateUnsharedMemoryUsage() const override { return 0; }
2037
2038    private:
2039     Layer* layer_;
2040   };
2041
2042   LayerTreeHostTestChangeLayerPropertiesInPaintContents() : num_commits_(0) {}
2043
2044   void SetupTree() override {
2045     scoped_refptr<PictureLayer> root_layer =
2046         PictureLayer::Create(layer_settings(), &client_);
2047     root_layer->SetIsDrawable(true);
2048     root_layer->SetBounds(gfx::Size(1, 1));
2049     client_.set_layer(root_layer.get());
2050
2051     layer_tree_host()->SetRootLayer(root_layer);
2052     LayerTreeHostTest::SetupTree();
2053   }
2054
2055   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
2056   void AfterTest() override {}
2057
2058   void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) override {
2059     num_commits_++;
2060     if (num_commits_ == 1) {
2061       LayerImpl* root_layer = host_impl->active_tree()->root_layer();
2062       EXPECT_EQ(gfx::Size(1, 1), root_layer->bounds());
2063     } else {
2064       LayerImpl* root_layer = host_impl->active_tree()->root_layer();
2065       EXPECT_EQ(gfx::Size(2, 2), root_layer->bounds());
2066       EndTest();
2067     }
2068   }
2069
2070  private:
2071   SetBoundsClient client_;
2072   int num_commits_;
2073 };
2074
2075 SINGLE_AND_MULTI_THREAD_TEST_F(
2076     LayerTreeHostTestChangeLayerPropertiesInPaintContents);
2077
2078 class MockIOSurfaceWebGraphicsContext3D : public TestWebGraphicsContext3D {
2079  public:
2080   MockIOSurfaceWebGraphicsContext3D() {
2081     test_capabilities_.gpu.iosurface = true;
2082     test_capabilities_.gpu.texture_rectangle = true;
2083   }
2084
2085   GLuint createTexture() override { return 1; }
2086   MOCK_METHOD1(activeTexture, void(GLenum texture));
2087   MOCK_METHOD2(bindTexture, void(GLenum target,
2088                                  GLuint texture_id));
2089   MOCK_METHOD3(texParameteri, void(GLenum target,
2090                                    GLenum pname,
2091                                    GLint param));
2092   MOCK_METHOD5(texImageIOSurface2DCHROMIUM, void(GLenum target,
2093                                                  GLint width,
2094                                                  GLint height,
2095                                                  GLuint ioSurfaceId,
2096                                                  GLuint plane));
2097   MOCK_METHOD4(drawElements, void(GLenum mode,
2098                                   GLsizei count,
2099                                   GLenum type,
2100                                   GLintptr offset));
2101   MOCK_METHOD1(deleteTexture, void(GLenum texture));
2102   MOCK_METHOD3(produceTextureDirectCHROMIUM,
2103                void(GLuint texture, GLenum target, const GLbyte* mailbox));
2104 };
2105
2106 class LayerTreeHostTestIOSurfaceDrawing : public LayerTreeHostTest {
2107  protected:
2108   scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface() override {
2109     scoped_ptr<MockIOSurfaceWebGraphicsContext3D> mock_context_owned(
2110         new MockIOSurfaceWebGraphicsContext3D);
2111     mock_context_ = mock_context_owned.get();
2112
2113     if (delegating_renderer())
2114       return FakeOutputSurface::CreateDelegating3d(mock_context_owned.Pass());
2115     else
2116       return FakeOutputSurface::Create3d(mock_context_owned.Pass());
2117   }
2118
2119   void SetupTree() override {
2120     LayerTreeHostTest::SetupTree();
2121
2122     layer_tree_host()->root_layer()->SetIsDrawable(false);
2123
2124     io_surface_id_ = 9;
2125     io_surface_size_ = gfx::Size(6, 7);
2126
2127     scoped_refptr<IOSurfaceLayer> io_surface_layer =
2128         IOSurfaceLayer::Create(layer_settings());
2129     io_surface_layer->SetBounds(gfx::Size(10, 10));
2130     io_surface_layer->SetIsDrawable(true);
2131     io_surface_layer->SetContentsOpaque(true);
2132     io_surface_layer->SetIOSurfaceProperties(io_surface_id_, io_surface_size_);
2133     layer_tree_host()->root_layer()->AddChild(io_surface_layer);
2134   }
2135
2136   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
2137
2138   void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) override {
2139     EXPECT_EQ(0u, host_impl->resource_provider()->num_resources());
2140     // In WillDraw, the IOSurfaceLayer sets up the io surface texture.
2141
2142     EXPECT_CALL(*mock_context_, activeTexture(_)).Times(0);
2143     EXPECT_CALL(*mock_context_, bindTexture(GL_TEXTURE_RECTANGLE_ARB, 1))
2144         .Times(AtLeast(1));
2145     EXPECT_CALL(*mock_context_,
2146                 texParameteri(
2147                     GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR))
2148         .Times(1);
2149     EXPECT_CALL(*mock_context_,
2150                 texParameteri(
2151                     GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR))
2152         .Times(1);
2153     EXPECT_CALL(*mock_context_,
2154                 texParameteri(GL_TEXTURE_RECTANGLE_ARB,
2155                               GL_TEXTURE_POOL_CHROMIUM,
2156                               GL_TEXTURE_POOL_UNMANAGED_CHROMIUM)).Times(1);
2157     EXPECT_CALL(*mock_context_,
2158                 texParameteri(GL_TEXTURE_RECTANGLE_ARB,
2159                               GL_TEXTURE_WRAP_S,
2160                               GL_CLAMP_TO_EDGE)).Times(1);
2161     EXPECT_CALL(*mock_context_,
2162                 texParameteri(GL_TEXTURE_RECTANGLE_ARB,
2163                               GL_TEXTURE_WRAP_T,
2164                               GL_CLAMP_TO_EDGE)).Times(1);
2165
2166     EXPECT_CALL(*mock_context_,
2167                 texImageIOSurface2DCHROMIUM(GL_TEXTURE_RECTANGLE_ARB,
2168                                             io_surface_size_.width(),
2169                                             io_surface_size_.height(),
2170                                             io_surface_id_,
2171                                             0)).Times(1);
2172
2173     EXPECT_CALL(*mock_context_, bindTexture(_, 0)).Times(AnyNumber());
2174   }
2175
2176   DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
2177                                    LayerTreeHostImpl::FrameData* frame,
2178                                    DrawResult draw_result) override {
2179     Mock::VerifyAndClearExpectations(&mock_context_);
2180     ResourceProvider* resource_provider = host_impl->resource_provider();
2181     EXPECT_EQ(1u, resource_provider->num_resources());
2182     CHECK_EQ(1u, frame->render_passes.size());
2183     CHECK_LE(1u, frame->render_passes[0]->quad_list.size());
2184     const DrawQuad* quad = frame->render_passes[0]->quad_list.front();
2185     CHECK_EQ(DrawQuad::IO_SURFACE_CONTENT, quad->material);
2186     const IOSurfaceDrawQuad* io_surface_draw_quad =
2187         IOSurfaceDrawQuad::MaterialCast(quad);
2188     EXPECT_EQ(io_surface_size_, io_surface_draw_quad->io_surface_size);
2189     EXPECT_NE(0u, io_surface_draw_quad->io_surface_resource_id());
2190     EXPECT_EQ(static_cast<GLenum>(GL_TEXTURE_RECTANGLE_ARB),
2191               resource_provider->TargetForTesting(
2192                   io_surface_draw_quad->io_surface_resource_id()));
2193
2194     if (delegating_renderer()) {
2195       // The io surface layer's resource should be sent to the parent.
2196       EXPECT_CALL(*mock_context_, produceTextureDirectCHROMIUM(
2197                                       _, GL_TEXTURE_RECTANGLE_ARB, _)).Times(1);
2198     } else {
2199       // The io surface layer's texture is drawn.
2200       EXPECT_CALL(*mock_context_, activeTexture(GL_TEXTURE0)).Times(AtLeast(1));
2201       EXPECT_CALL(*mock_context_, drawElements(GL_TRIANGLES, 6, _, _))
2202           .Times(AtLeast(1));
2203     }
2204
2205     return draw_result;
2206   }
2207
2208   void DrawLayersOnThread(LayerTreeHostImpl* host_impl) override {
2209     Mock::VerifyAndClearExpectations(&mock_context_);
2210
2211     EXPECT_CALL(*mock_context_, deleteTexture(1)).Times(AtLeast(1));
2212     EndTest();
2213   }
2214
2215   void AfterTest() override {}
2216
2217   int io_surface_id_;
2218   MockIOSurfaceWebGraphicsContext3D* mock_context_;
2219   gfx::Size io_surface_size_;
2220 };
2221
2222 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestIOSurfaceDrawing);
2223
2224 class LayerTreeHostTestNumFramesPending : public LayerTreeHostTest {
2225  public:
2226   void BeginTest() override {
2227     frame_ = 0;
2228     PostSetNeedsCommitToMainThread();
2229   }
2230
2231   // Round 1: commit + draw
2232   // Round 2: commit only (no draw/swap)
2233   // Round 3: draw only (no commit)
2234
2235   void DidCommit() override {
2236     int commit = layer_tree_host()->source_frame_number();
2237     switch (commit) {
2238       case 2:
2239         // Round 2 done.
2240         EXPECT_EQ(1, frame_);
2241         layer_tree_host()->SetNeedsRedraw();
2242         break;
2243     }
2244   }
2245
2246   void DidCompleteSwapBuffers() override {
2247     int commit = layer_tree_host()->source_frame_number();
2248     ++frame_;
2249     switch (frame_) {
2250       case 1:
2251         // Round 1 done.
2252         EXPECT_EQ(1, commit);
2253         layer_tree_host()->SetNeedsCommit();
2254         break;
2255       case 2:
2256         // Round 3 done.
2257         EXPECT_EQ(2, commit);
2258         EndTest();
2259         break;
2260     }
2261   }
2262
2263   void AfterTest() override {}
2264
2265  protected:
2266   int frame_;
2267 };
2268
2269 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestNumFramesPending);
2270
2271 class LayerTreeHostTestResourcelessSoftwareDraw : public LayerTreeHostTest {
2272  public:
2273   void SetupTree() override {
2274     root_layer_ = FakePictureLayer::Create(layer_settings(), &client_);
2275     root_layer_->SetIsDrawable(true);
2276     root_layer_->SetBounds(gfx::Size(50, 50));
2277
2278     parent_layer_ = FakePictureLayer::Create(layer_settings(), &client_);
2279     parent_layer_->SetIsDrawable(true);
2280     parent_layer_->SetBounds(gfx::Size(50, 50));
2281     parent_layer_->SetForceRenderSurface(true);
2282
2283     child_layer_ = FakePictureLayer::Create(layer_settings(), &client_);
2284     child_layer_->SetIsDrawable(true);
2285     child_layer_->SetBounds(gfx::Size(50, 50));
2286
2287     root_layer_->AddChild(parent_layer_);
2288     parent_layer_->AddChild(child_layer_);
2289     layer_tree_host()->SetRootLayer(root_layer_);
2290
2291     LayerTreeHostTest::SetupTree();
2292   }
2293
2294   scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface() override {
2295     if (delegating_renderer()) {
2296       return FakeOutputSurface::CreateDelegatingSoftware(
2297           make_scoped_ptr(new SoftwareOutputDevice));
2298     } else {
2299       return FakeOutputSurface::CreateSoftware(
2300           make_scoped_ptr(new SoftwareOutputDevice));
2301     }
2302   }
2303
2304   void BeginTest() override {
2305     PostSetNeedsCommitToMainThread();
2306     swap_count_ = 0;
2307   }
2308
2309   DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
2310                                    LayerTreeHostImpl::FrameData* frame_data,
2311                                    DrawResult draw_result) override {
2312     if (host_impl->GetDrawMode() == DRAW_MODE_RESOURCELESS_SOFTWARE) {
2313       EXPECT_EQ(1u, frame_data->render_passes.size());
2314       // Has at least 3 quads for each layer.
2315       RenderPass* render_pass = frame_data->render_passes[0];
2316       EXPECT_GE(render_pass->quad_list.size(), 3u);
2317     } else {
2318       EXPECT_EQ(2u, frame_data->render_passes.size());
2319
2320       // At least root layer quad in root render pass.
2321       EXPECT_GE(frame_data->render_passes[0]->quad_list.size(), 1u);
2322       // At least parent and child layer quads in parent render pass.
2323       EXPECT_GE(frame_data->render_passes[1]->quad_list.size(), 2u);
2324     }
2325     return draw_result;
2326   }
2327
2328   void SwapBuffersCompleteOnThread(LayerTreeHostImpl* host_impl) override {
2329     swap_count_++;
2330     switch (swap_count_) {
2331       case 1: {
2332         gfx::Transform identity;
2333         gfx::Rect empty_rect;
2334         bool resourceless_software_draw = true;
2335         host_impl->SetExternalDrawConstraints(identity, empty_rect, empty_rect,
2336                                               empty_rect, identity,
2337                                               resourceless_software_draw);
2338         host_impl->SetFullRootLayerDamage();
2339         host_impl->SetNeedsRedraw();
2340         break;
2341       }
2342       case 2:
2343         EndTest();
2344         break;
2345       default:
2346         NOTREACHED();
2347     }
2348   }
2349
2350   void AfterTest() override {}
2351
2352  private:
2353   FakeContentLayerClient client_;
2354   scoped_refptr<Layer> root_layer_;
2355   scoped_refptr<Layer> parent_layer_;
2356   scoped_refptr<Layer> child_layer_;
2357   int swap_count_;
2358 };
2359
2360 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestResourcelessSoftwareDraw);
2361
2362 // Test for UI Resource management.
2363 class LayerTreeHostTestUIResource : public LayerTreeHostTest {
2364  public:
2365   LayerTreeHostTestUIResource() : num_ui_resources_(0) {}
2366
2367   void InitializeSettings(LayerTreeSettings* settings) override {
2368     settings->renderer_settings.texture_id_allocation_chunk_size = 1;
2369   }
2370
2371   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
2372
2373   void DidCommit() override {
2374     int frame = layer_tree_host()->source_frame_number();
2375     switch (frame) {
2376       case 1:
2377         CreateResource();
2378         CreateResource();
2379         PostSetNeedsCommitToMainThread();
2380         break;
2381       case 2:
2382         // Usually ScopedUIResource are deleted from the manager in their
2383         // destructor.  Here we just want to test that a direct call to
2384         // DeleteUIResource works.
2385         layer_tree_host()->DeleteUIResource(ui_resources_[0]->id());
2386         PostSetNeedsCommitToMainThread();
2387         break;
2388       case 3:
2389         // DeleteUIResource can be called with an invalid id.
2390         layer_tree_host()->DeleteUIResource(ui_resources_[0]->id());
2391         PostSetNeedsCommitToMainThread();
2392         break;
2393       case 4:
2394         CreateResource();
2395         CreateResource();
2396         PostSetNeedsCommitToMainThread();
2397         break;
2398       case 5:
2399         ClearResources();
2400         EndTest();
2401         break;
2402     }
2403   }
2404
2405   void DidActivateTreeOnThread(LayerTreeHostImpl* impl) override {
2406     TestWebGraphicsContext3D* context = TestContext();
2407
2408     int frame = impl->active_tree()->source_frame_number();
2409     switch (frame) {
2410       case 0:
2411         ASSERT_EQ(0u, context->NumTextures());
2412         break;
2413       case 1:
2414         // Created two textures.
2415         ASSERT_EQ(2u, context->NumTextures());
2416         break;
2417       case 2:
2418         // One texture left after one deletion.
2419         ASSERT_EQ(1u, context->NumTextures());
2420         break;
2421       case 3:
2422         // Resource manager state should not change when delete is called on an
2423         // invalid id.
2424         ASSERT_EQ(1u, context->NumTextures());
2425         break;
2426       case 4:
2427         // Creation after deletion: two more creates should total up to
2428         // three textures.
2429         ASSERT_EQ(3u, context->NumTextures());
2430         break;
2431     }
2432   }
2433
2434   void AfterTest() override {}
2435
2436  private:
2437   // Must clear all resources before exiting.
2438   void ClearResources() {
2439     for (int i = 0; i < num_ui_resources_; i++)
2440       ui_resources_[i] = nullptr;
2441   }
2442
2443   void CreateResource() {
2444     ui_resources_[num_ui_resources_++] =
2445         FakeScopedUIResource::Create(layer_tree_host());
2446   }
2447
2448   scoped_ptr<FakeScopedUIResource> ui_resources_[5];
2449   int num_ui_resources_;
2450 };
2451
2452 MULTI_THREAD_TEST_F(LayerTreeHostTestUIResource);
2453
2454 class PushPropertiesCountingLayerImpl : public LayerImpl {
2455  public:
2456   static scoped_ptr<PushPropertiesCountingLayerImpl> Create(
2457       LayerTreeImpl* tree_impl, int id) {
2458     return make_scoped_ptr(new PushPropertiesCountingLayerImpl(tree_impl, id));
2459   }
2460
2461   ~PushPropertiesCountingLayerImpl() override {}
2462
2463   void PushPropertiesTo(LayerImpl* layer) override {
2464     LayerImpl::PushPropertiesTo(layer);
2465     push_properties_count_++;
2466     // Push state to the active tree because we can only access it from there.
2467     static_cast<PushPropertiesCountingLayerImpl*>(
2468         layer)->push_properties_count_ = push_properties_count_;
2469   }
2470
2471   scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override {
2472     return PushPropertiesCountingLayerImpl::Create(tree_impl, id());
2473   }
2474
2475   size_t push_properties_count() const { return push_properties_count_; }
2476   void reset_push_properties_count() { push_properties_count_ = 0; }
2477
2478  private:
2479   size_t push_properties_count_;
2480
2481   PushPropertiesCountingLayerImpl(LayerTreeImpl* tree_impl, int id)
2482       : LayerImpl(tree_impl, id),
2483         push_properties_count_(0) {
2484     SetBounds(gfx::Size(1, 1));
2485   }
2486 };
2487
2488 class PushPropertiesCountingLayer : public Layer {
2489  public:
2490   static scoped_refptr<PushPropertiesCountingLayer> Create(
2491       const LayerSettings& settings) {
2492     return new PushPropertiesCountingLayer(settings);
2493   }
2494
2495   void PushPropertiesTo(LayerImpl* layer) override {
2496     Layer::PushPropertiesTo(layer);
2497     push_properties_count_++;
2498     if (persist_needs_push_properties_)
2499       needs_push_properties_ = true;
2500   }
2501
2502   // Something to make this layer push properties, but no other layer.
2503   void MakePushProperties() { SetContentsOpaque(!contents_opaque()); }
2504
2505   scoped_ptr<LayerImpl> CreateLayerImpl(LayerTreeImpl* tree_impl) override {
2506     return PushPropertiesCountingLayerImpl::Create(tree_impl, id());
2507   }
2508
2509   void SetDrawsContent(bool draws_content) { SetIsDrawable(draws_content); }
2510
2511   size_t push_properties_count() const { return push_properties_count_; }
2512   void reset_push_properties_count() { push_properties_count_ = 0; }
2513
2514   void set_persist_needs_push_properties(bool persist) {
2515     persist_needs_push_properties_ = persist;
2516   }
2517
2518  private:
2519   explicit PushPropertiesCountingLayer(const LayerSettings& settings)
2520       : Layer(settings),
2521         push_properties_count_(0),
2522         persist_needs_push_properties_(false) {
2523     SetBounds(gfx::Size(1, 1));
2524   }
2525   ~PushPropertiesCountingLayer() override {}
2526
2527   size_t push_properties_count_;
2528   bool persist_needs_push_properties_;
2529 };
2530
2531 class LayerTreeHostTestLayersPushProperties : public LayerTreeHostTest {
2532  protected:
2533   void BeginTest() override {
2534     num_commits_ = 0;
2535     expected_push_properties_root_ = 0;
2536     expected_push_properties_child_ = 0;
2537     expected_push_properties_grandchild_ = 0;
2538     expected_push_properties_child2_ = 0;
2539     expected_push_properties_other_root_ = 0;
2540     expected_push_properties_leaf_layer_ = 0;
2541     PostSetNeedsCommitToMainThread();
2542   }
2543
2544   void SetupTree() override {
2545     root_ = PushPropertiesCountingLayer::Create(layer_settings());
2546     root_->CreateRenderSurface();
2547     child_ = PushPropertiesCountingLayer::Create(layer_settings());
2548     child2_ = PushPropertiesCountingLayer::Create(layer_settings());
2549     grandchild_ = PushPropertiesCountingLayer::Create(layer_settings());
2550     leaf_always_pushing_layer_ =
2551         PushPropertiesCountingLayer::Create(layer_settings());
2552     leaf_always_pushing_layer_->set_persist_needs_push_properties(true);
2553
2554     root_->AddChild(child_);
2555     root_->AddChild(child2_);
2556     child_->AddChild(grandchild_);
2557     child2_->AddChild(leaf_always_pushing_layer_);
2558
2559     other_root_ = PushPropertiesCountingLayer::Create(layer_settings());
2560     other_root_->CreateRenderSurface();
2561
2562     // Don't set the root layer here.
2563     LayerTreeHostTest::SetupTree();
2564   }
2565
2566   void DidCommitAndDrawFrame() override {
2567     EXPECT_EQ(expected_push_properties_root_, root_->push_properties_count())
2568         << "num_commits: " << num_commits_;
2569     EXPECT_EQ(expected_push_properties_child_, child_->push_properties_count())
2570         << "num_commits: " << num_commits_;
2571     EXPECT_EQ(expected_push_properties_grandchild_,
2572               grandchild_->push_properties_count())
2573         << "num_commits: " << num_commits_;
2574     EXPECT_EQ(expected_push_properties_child2_,
2575               child2_->push_properties_count())
2576         << "num_commits: " << num_commits_;
2577     EXPECT_EQ(expected_push_properties_other_root_,
2578               other_root_->push_properties_count())
2579         << "num_commits: " << num_commits_;
2580     EXPECT_EQ(expected_push_properties_leaf_layer_,
2581               leaf_always_pushing_layer_->push_properties_count())
2582         << "num_commits: " << num_commits_;
2583
2584     ++num_commits_;
2585
2586     // The scrollbar layer always needs to be pushed.
2587     if (root_->layer_tree_host()) {
2588       EXPECT_TRUE(root_->descendant_needs_push_properties());
2589       EXPECT_FALSE(root_->needs_push_properties());
2590     }
2591     if (child2_->layer_tree_host()) {
2592       EXPECT_TRUE(child2_->descendant_needs_push_properties());
2593       EXPECT_FALSE(child2_->needs_push_properties());
2594     }
2595     if (leaf_always_pushing_layer_->layer_tree_host()) {
2596       EXPECT_FALSE(
2597           leaf_always_pushing_layer_->descendant_needs_push_properties());
2598       EXPECT_TRUE(leaf_always_pushing_layer_->needs_push_properties());
2599     }
2600
2601     // child_ and grandchild_ don't persist their need to push properties.
2602     if (child_->layer_tree_host()) {
2603       EXPECT_FALSE(child_->descendant_needs_push_properties());
2604       EXPECT_FALSE(child_->needs_push_properties());
2605     }
2606     if (grandchild_->layer_tree_host()) {
2607       EXPECT_FALSE(grandchild_->descendant_needs_push_properties());
2608       EXPECT_FALSE(grandchild_->needs_push_properties());
2609     }
2610
2611     if (other_root_->layer_tree_host()) {
2612       EXPECT_FALSE(other_root_->descendant_needs_push_properties());
2613       EXPECT_FALSE(other_root_->needs_push_properties());
2614     }
2615
2616     switch (num_commits_) {
2617       case 1:
2618         layer_tree_host()->SetRootLayer(root_);
2619         // Layers added to the tree get committed.
2620         ++expected_push_properties_root_;
2621         ++expected_push_properties_child_;
2622         ++expected_push_properties_grandchild_;
2623         ++expected_push_properties_child2_;
2624         break;
2625       case 2:
2626         layer_tree_host()->SetNeedsCommit();
2627         // No layers need commit.
2628         break;
2629       case 3:
2630         layer_tree_host()->SetRootLayer(other_root_);
2631         // Layers added to the tree get committed.
2632         ++expected_push_properties_other_root_;
2633         break;
2634       case 4:
2635         layer_tree_host()->SetRootLayer(root_);
2636         // Layers added to the tree get committed.
2637         ++expected_push_properties_root_;
2638         ++expected_push_properties_child_;
2639         ++expected_push_properties_grandchild_;
2640         ++expected_push_properties_child2_;
2641         break;
2642       case 5:
2643         layer_tree_host()->SetNeedsCommit();
2644         // No layers need commit.
2645         break;
2646       case 6:
2647         child_->RemoveFromParent();
2648         // No layers need commit.
2649         break;
2650       case 7:
2651         root_->AddChild(child_);
2652         // Layers added to the tree get committed.
2653         ++expected_push_properties_child_;
2654         ++expected_push_properties_grandchild_;
2655         break;
2656       case 8:
2657         grandchild_->RemoveFromParent();
2658         // No layers need commit.
2659         break;
2660       case 9:
2661         child_->AddChild(grandchild_);
2662         // Layers added to the tree get committed.
2663         ++expected_push_properties_grandchild_;
2664         break;
2665       case 10:
2666         layer_tree_host()->SetViewportSize(gfx::Size(20, 20));
2667         // No layers need commit.
2668         break;
2669       case 11:
2670         layer_tree_host()->SetPageScaleFactorAndLimits(1.f, 0.8f, 1.1f);
2671         // No layers need commit.
2672         break;
2673       case 12:
2674         child_->MakePushProperties();
2675         // The modified layer needs commit
2676         ++expected_push_properties_child_;
2677         break;
2678       case 13:
2679         child2_->MakePushProperties();
2680         // The modified layer needs commit
2681         ++expected_push_properties_child2_;
2682         break;
2683       case 14:
2684         child_->RemoveFromParent();
2685         root_->AddChild(child_);
2686         // Layers added to the tree get committed.
2687         ++expected_push_properties_child_;
2688         ++expected_push_properties_grandchild_;
2689         break;
2690       case 15:
2691         grandchild_->MakePushProperties();
2692         // The modified layer needs commit
2693         ++expected_push_properties_grandchild_;
2694         break;
2695       case 16:
2696         // SetNeedsDisplay does not always set needs commit (so call it
2697         // explicitly), but is a property change.
2698         child_->SetNeedsDisplay();
2699         ++expected_push_properties_child_;
2700         layer_tree_host()->SetNeedsCommit();
2701         break;
2702       case 17:
2703         EndTest();
2704         break;
2705     }
2706
2707     // The leaf layer always pushes.
2708     if (leaf_always_pushing_layer_->layer_tree_host())
2709       ++expected_push_properties_leaf_layer_;
2710   }
2711
2712   void AfterTest() override {}
2713
2714   int num_commits_;
2715   FakeContentLayerClient client_;
2716   scoped_refptr<PushPropertiesCountingLayer> root_;
2717   scoped_refptr<PushPropertiesCountingLayer> child_;
2718   scoped_refptr<PushPropertiesCountingLayer> child2_;
2719   scoped_refptr<PushPropertiesCountingLayer> grandchild_;
2720   scoped_refptr<PushPropertiesCountingLayer> other_root_;
2721   scoped_refptr<PushPropertiesCountingLayer> leaf_always_pushing_layer_;
2722   size_t expected_push_properties_root_;
2723   size_t expected_push_properties_child_;
2724   size_t expected_push_properties_child2_;
2725   size_t expected_push_properties_grandchild_;
2726   size_t expected_push_properties_other_root_;
2727   size_t expected_push_properties_leaf_layer_;
2728 };
2729
2730 MULTI_THREAD_TEST_F(LayerTreeHostTestLayersPushProperties);
2731
2732 class LayerTreeHostTestImplLayersPushProperties
2733     : public LayerTreeHostTestLayersPushProperties {
2734  protected:
2735   void BeginTest() override {
2736     expected_push_properties_root_impl_ = 0;
2737     expected_push_properties_child_impl_ = 0;
2738     expected_push_properties_grandchild_impl_ = 0;
2739     expected_push_properties_child2_impl_ = 0;
2740     expected_push_properties_grandchild2_impl_ = 0;
2741     LayerTreeHostTestLayersPushProperties::BeginTest();
2742   }
2743
2744   void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) override {
2745     // These commits are in response to the changes made in
2746     // LayerTreeHostTestLayersPushProperties::DidCommitAndDrawFrame()
2747     switch (num_commits_) {
2748       case 0:
2749         // Tree hasn't been setup yet don't bother to check anything.
2750         return;
2751       case 1:
2752         // Root gets set up, Everyone is initialized.
2753         ++expected_push_properties_root_impl_;
2754         ++expected_push_properties_child_impl_;
2755         ++expected_push_properties_grandchild_impl_;
2756         ++expected_push_properties_child2_impl_;
2757         ++expected_push_properties_grandchild2_impl_;
2758         break;
2759       case 2:
2760         // Tree doesn't change but the one leaf that always pushes is pushed.
2761         ++expected_push_properties_grandchild2_impl_;
2762         break;
2763       case 3:
2764         // Root is swapped here.
2765         // Clear the expected push properties the tree will be rebuilt.
2766         expected_push_properties_root_impl_ = 0;
2767         expected_push_properties_child_impl_ = 0;
2768         expected_push_properties_grandchild_impl_ = 0;
2769         expected_push_properties_child2_impl_ = 0;
2770         expected_push_properties_grandchild2_impl_ = 0;
2771
2772         // Make sure the new root is pushed.
2773         EXPECT_EQ(1u, static_cast<PushPropertiesCountingLayerImpl*>(
2774                 host_impl->RootLayer())->push_properties_count());
2775         return;
2776       case 4:
2777         // Root is swapped back all of the layers in the tree get pushed.
2778         ++expected_push_properties_root_impl_;
2779         ++expected_push_properties_child_impl_;
2780         ++expected_push_properties_grandchild_impl_;
2781         ++expected_push_properties_child2_impl_;
2782         ++expected_push_properties_grandchild2_impl_;
2783         break;
2784       case 5:
2785         // Tree doesn't change but the one leaf that always pushes is pushed.
2786         ++expected_push_properties_grandchild2_impl_;
2787         break;
2788       case 6:
2789         // First child is removed. Structure of the tree changes here so swap
2790         // some of the values. child_impl becomes child2_impl.
2791         expected_push_properties_child_impl_ =
2792             expected_push_properties_child2_impl_;
2793         expected_push_properties_child2_impl_ = 0;
2794         // grandchild_impl becomes grandchild2_impl.
2795         expected_push_properties_grandchild_impl_ =
2796             expected_push_properties_grandchild2_impl_;
2797         expected_push_properties_grandchild2_impl_ = 0;
2798
2799         // grandchild_impl is now the leaf that always pushes. It is pushed.
2800         ++expected_push_properties_grandchild_impl_;
2801         break;
2802       case 7:
2803         // The leaf that always pushes is pushed.
2804         ++expected_push_properties_grandchild_impl_;
2805
2806         // Child is added back. New layers are initialized.
2807         ++expected_push_properties_grandchild2_impl_;
2808         ++expected_push_properties_child2_impl_;
2809         break;
2810       case 8:
2811         // Leaf is removed.
2812         expected_push_properties_grandchild2_impl_ = 0;
2813
2814         // Always pushing.
2815         ++expected_push_properties_grandchild_impl_;
2816         break;
2817       case 9:
2818         // Leaf is added back
2819         ++expected_push_properties_grandchild2_impl_;
2820
2821         // The leaf that always pushes is pushed.
2822         ++expected_push_properties_grandchild_impl_;
2823         break;
2824       case 10:
2825         // The leaf that always pushes is pushed.
2826         ++expected_push_properties_grandchild_impl_;
2827         break;
2828       case 11:
2829         // The leaf that always pushes is pushed.
2830         ++expected_push_properties_grandchild_impl_;
2831         break;
2832       case 12:
2833         // The leaf that always pushes is pushed.
2834         ++expected_push_properties_grandchild_impl_;
2835
2836         // This child position was changed.
2837         ++expected_push_properties_child2_impl_;
2838         break;
2839       case 13:
2840         // The position of this child was changed.
2841         ++expected_push_properties_child_impl_;
2842
2843         // The leaf that always pushes is pushed.
2844         ++expected_push_properties_grandchild_impl_;
2845         break;
2846       case 14:
2847         // Second child is removed from tree. Don't discard counts because
2848         // they are added back before commit.
2849
2850         // The leaf that always pushes is pushed.
2851         ++expected_push_properties_grandchild_impl_;
2852
2853         // Second child added back.
2854         ++expected_push_properties_child2_impl_;
2855         ++expected_push_properties_grandchild2_impl_;
2856
2857         break;
2858       case 15:
2859         // The position of this child was changed.
2860         ++expected_push_properties_grandchild2_impl_;
2861
2862         // The leaf that always pushes is pushed.
2863         ++expected_push_properties_grandchild_impl_;
2864         break;
2865       case 16:
2866         // Second child is invalidated with SetNeedsDisplay
2867         ++expected_push_properties_child2_impl_;
2868
2869         // The leaf that always pushed is pushed.
2870         ++expected_push_properties_grandchild_impl_;
2871         break;
2872     }
2873
2874     PushPropertiesCountingLayerImpl* root_impl_ = NULL;
2875     PushPropertiesCountingLayerImpl* child_impl_ = NULL;
2876     PushPropertiesCountingLayerImpl* child2_impl_ = NULL;
2877     PushPropertiesCountingLayerImpl* grandchild_impl_ = NULL;
2878     PushPropertiesCountingLayerImpl* leaf_always_pushing_layer_impl_ = NULL;
2879
2880     // Pull the layers that we need from the tree assuming the same structure
2881     // as LayerTreeHostTestLayersPushProperties
2882     root_impl_ = static_cast<PushPropertiesCountingLayerImpl*>(
2883         host_impl->RootLayer());
2884
2885     if (root_impl_ && root_impl_->children().size() > 0) {
2886       child_impl_ = static_cast<PushPropertiesCountingLayerImpl*>(
2887           root_impl_->children()[0]);
2888
2889       if (child_impl_ && child_impl_->children().size() > 0)
2890         grandchild_impl_ = static_cast<PushPropertiesCountingLayerImpl*>(
2891             child_impl_->children()[0]);
2892     }
2893
2894     if (root_impl_ && root_impl_->children().size() > 1) {
2895       child2_impl_ = static_cast<PushPropertiesCountingLayerImpl*>(
2896           root_impl_->children()[1]);
2897
2898       if (child2_impl_ && child2_impl_->children().size() > 0)
2899         leaf_always_pushing_layer_impl_ =
2900             static_cast<PushPropertiesCountingLayerImpl*>(
2901                 child2_impl_->children()[0]);
2902     }
2903
2904     if (root_impl_)
2905       EXPECT_EQ(expected_push_properties_root_impl_,
2906                 root_impl_->push_properties_count());
2907     if (child_impl_)
2908       EXPECT_EQ(expected_push_properties_child_impl_,
2909                 child_impl_->push_properties_count());
2910     if (grandchild_impl_)
2911       EXPECT_EQ(expected_push_properties_grandchild_impl_,
2912                 grandchild_impl_->push_properties_count());
2913     if (child2_impl_)
2914       EXPECT_EQ(expected_push_properties_child2_impl_,
2915                 child2_impl_->push_properties_count());
2916     if (leaf_always_pushing_layer_impl_)
2917       EXPECT_EQ(expected_push_properties_grandchild2_impl_,
2918                 leaf_always_pushing_layer_impl_->push_properties_count());
2919   }
2920
2921   size_t expected_push_properties_root_impl_;
2922   size_t expected_push_properties_child_impl_;
2923   size_t expected_push_properties_child2_impl_;
2924   size_t expected_push_properties_grandchild_impl_;
2925   size_t expected_push_properties_grandchild2_impl_;
2926 };
2927
2928 // In single thread there's no pending tree to push properties from.
2929 MULTI_THREAD_TEST_F(LayerTreeHostTestImplLayersPushProperties);
2930
2931 class LayerTreeHostTestPropertyChangesDuringUpdateArePushed
2932     : public LayerTreeHostTest {
2933  protected:
2934   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
2935
2936   void SetupTree() override {
2937     root_ = Layer::Create(layer_settings());
2938     root_->CreateRenderSurface();
2939     root_->SetBounds(gfx::Size(1, 1));
2940
2941     bool paint_scrollbar = true;
2942     bool has_thumb = false;
2943     scrollbar_layer_ = FakePaintedScrollbarLayer::Create(
2944         layer_settings(), paint_scrollbar, has_thumb, root_->id());
2945
2946     root_->AddChild(scrollbar_layer_);
2947
2948     layer_tree_host()->SetRootLayer(root_);
2949     LayerTreeHostTest::SetupTree();
2950   }
2951
2952   void DidCommitAndDrawFrame() override {
2953     switch (layer_tree_host()->source_frame_number()) {
2954       case 0:
2955         break;
2956       case 1: {
2957         // During update, the ignore_set_needs_commit_ bit is set to true to
2958         // avoid causing a second commit to be scheduled. If a property change
2959         // is made during this, however, it needs to be pushed in the upcoming
2960         // commit.
2961         scoped_ptr<base::AutoReset<bool>> ignore =
2962             scrollbar_layer_->IgnoreSetNeedsCommit();
2963
2964         scrollbar_layer_->SetBounds(gfx::Size(30, 30));
2965
2966         EXPECT_TRUE(scrollbar_layer_->needs_push_properties());
2967         EXPECT_TRUE(root_->descendant_needs_push_properties());
2968         layer_tree_host()->SetNeedsCommit();
2969
2970         scrollbar_layer_->reset_push_properties_count();
2971         EXPECT_EQ(0u, scrollbar_layer_->push_properties_count());
2972         break;
2973       }
2974       case 2:
2975         EXPECT_EQ(1u, scrollbar_layer_->push_properties_count());
2976         EndTest();
2977         break;
2978     }
2979   }
2980
2981   void AfterTest() override {}
2982
2983   scoped_refptr<Layer> root_;
2984   scoped_refptr<FakePaintedScrollbarLayer> scrollbar_layer_;
2985 };
2986
2987 MULTI_THREAD_TEST_F(LayerTreeHostTestPropertyChangesDuringUpdateArePushed);
2988
2989 class LayerTreeHostTestSetDrawableCausesCommit : public LayerTreeHostTest {
2990  protected:
2991   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
2992
2993   void SetupTree() override {
2994     root_ = PushPropertiesCountingLayer::Create(layer_settings());
2995     root_->CreateRenderSurface();
2996     child_ = PushPropertiesCountingLayer::Create(layer_settings());
2997     root_->AddChild(child_);
2998
2999     layer_tree_host()->SetRootLayer(root_);
3000     LayerTreeHostTest::SetupTree();
3001   }
3002
3003   void DidCommitAndDrawFrame() override {
3004     switch (layer_tree_host()->source_frame_number()) {
3005       case 0:
3006         break;
3007       case 1: {
3008         // During update, the ignore_set_needs_commit_ bit is set to true to
3009         // avoid causing a second commit to be scheduled. If a property change
3010         // is made during this, however, it needs to be pushed in the upcoming
3011         // commit.
3012         EXPECT_FALSE(root_->needs_push_properties());
3013         EXPECT_FALSE(child_->needs_push_properties());
3014         EXPECT_EQ(0, root_->NumDescendantsThatDrawContent());
3015         root_->reset_push_properties_count();
3016         child_->reset_push_properties_count();
3017         child_->SetDrawsContent(true);
3018         EXPECT_EQ(1, root_->NumDescendantsThatDrawContent());
3019         EXPECT_EQ(0u, root_->push_properties_count());
3020         EXPECT_EQ(0u, child_->push_properties_count());
3021         EXPECT_TRUE(root_->needs_push_properties());
3022         EXPECT_TRUE(child_->needs_push_properties());
3023         break;
3024       }
3025       case 2:
3026         EXPECT_EQ(1u, root_->push_properties_count());
3027         EXPECT_EQ(1u, child_->push_properties_count());
3028         EXPECT_FALSE(root_->needs_push_properties());
3029         EXPECT_FALSE(child_->needs_push_properties());
3030         EndTest();
3031         break;
3032     }
3033   }
3034
3035   void AfterTest() override {}
3036
3037   scoped_refptr<PushPropertiesCountingLayer> root_;
3038   scoped_refptr<PushPropertiesCountingLayer> child_;
3039 };
3040
3041 MULTI_THREAD_TEST_F(LayerTreeHostTestSetDrawableCausesCommit);
3042
3043 class LayerTreeHostTestCasePushPropertiesThreeGrandChildren
3044     : public LayerTreeHostTest {
3045  protected:
3046   void BeginTest() override {
3047     expected_push_properties_root_ = 0;
3048     expected_push_properties_child_ = 0;
3049     expected_push_properties_grandchild1_ = 0;
3050     expected_push_properties_grandchild2_ = 0;
3051     expected_push_properties_grandchild3_ = 0;
3052     PostSetNeedsCommitToMainThread();
3053   }
3054
3055   void SetupTree() override {
3056     root_ = PushPropertiesCountingLayer::Create(layer_settings());
3057     root_->CreateRenderSurface();
3058     child_ = PushPropertiesCountingLayer::Create(layer_settings());
3059     grandchild1_ = PushPropertiesCountingLayer::Create(layer_settings());
3060     grandchild2_ = PushPropertiesCountingLayer::Create(layer_settings());
3061     grandchild3_ = PushPropertiesCountingLayer::Create(layer_settings());
3062
3063     root_->AddChild(child_);
3064     child_->AddChild(grandchild1_);
3065     child_->AddChild(grandchild2_);
3066     child_->AddChild(grandchild3_);
3067
3068     // Don't set the root layer here.
3069     LayerTreeHostTest::SetupTree();
3070   }
3071
3072   void AfterTest() override {}
3073
3074   FakeContentLayerClient client_;
3075   scoped_refptr<PushPropertiesCountingLayer> root_;
3076   scoped_refptr<PushPropertiesCountingLayer> child_;
3077   scoped_refptr<PushPropertiesCountingLayer> grandchild1_;
3078   scoped_refptr<PushPropertiesCountingLayer> grandchild2_;
3079   scoped_refptr<PushPropertiesCountingLayer> grandchild3_;
3080   size_t expected_push_properties_root_;
3081   size_t expected_push_properties_child_;
3082   size_t expected_push_properties_grandchild1_;
3083   size_t expected_push_properties_grandchild2_;
3084   size_t expected_push_properties_grandchild3_;
3085 };
3086
3087 class LayerTreeHostTestPushPropertiesAddingToTreeRequiresPush
3088     : public LayerTreeHostTestCasePushPropertiesThreeGrandChildren {
3089  protected:
3090   void DidCommitAndDrawFrame() override {
3091     int last_source_frame_number = layer_tree_host()->source_frame_number() - 1;
3092     switch (last_source_frame_number) {
3093       case 0:
3094         EXPECT_FALSE(root_->needs_push_properties());
3095         EXPECT_FALSE(root_->descendant_needs_push_properties());
3096         EXPECT_FALSE(child_->needs_push_properties());
3097         EXPECT_FALSE(child_->descendant_needs_push_properties());
3098         EXPECT_FALSE(grandchild1_->needs_push_properties());
3099         EXPECT_FALSE(grandchild1_->descendant_needs_push_properties());
3100         EXPECT_FALSE(grandchild2_->needs_push_properties());
3101         EXPECT_FALSE(grandchild2_->descendant_needs_push_properties());
3102         EXPECT_FALSE(grandchild3_->needs_push_properties());
3103         EXPECT_FALSE(grandchild3_->descendant_needs_push_properties());
3104
3105         layer_tree_host()->SetRootLayer(root_);
3106
3107         EXPECT_TRUE(root_->needs_push_properties());
3108         EXPECT_TRUE(root_->descendant_needs_push_properties());
3109         EXPECT_TRUE(child_->needs_push_properties());
3110         EXPECT_TRUE(child_->descendant_needs_push_properties());
3111         EXPECT_TRUE(grandchild1_->needs_push_properties());
3112         EXPECT_FALSE(grandchild1_->descendant_needs_push_properties());
3113         EXPECT_TRUE(grandchild2_->needs_push_properties());
3114         EXPECT_FALSE(grandchild2_->descendant_needs_push_properties());
3115         EXPECT_TRUE(grandchild3_->needs_push_properties());
3116         EXPECT_FALSE(grandchild3_->descendant_needs_push_properties());
3117         break;
3118       case 1:
3119         EndTest();
3120         break;
3121     }
3122   }
3123 };
3124
3125 MULTI_THREAD_TEST_F(LayerTreeHostTestPushPropertiesAddingToTreeRequiresPush);
3126
3127 class LayerTreeHostTestPushPropertiesRemovingChildStopsRecursion
3128     : public LayerTreeHostTestCasePushPropertiesThreeGrandChildren {
3129  protected:
3130   void DidCommitAndDrawFrame() override {
3131     int last_source_frame_number = layer_tree_host()->source_frame_number() - 1;
3132     switch (last_source_frame_number) {
3133       case 0:
3134         layer_tree_host()->SetRootLayer(root_);
3135         break;
3136       case 1:
3137         EXPECT_FALSE(root_->needs_push_properties());
3138         EXPECT_FALSE(root_->descendant_needs_push_properties());
3139         EXPECT_FALSE(child_->needs_push_properties());
3140         EXPECT_FALSE(child_->descendant_needs_push_properties());
3141         EXPECT_FALSE(grandchild1_->needs_push_properties());
3142         EXPECT_FALSE(grandchild1_->descendant_needs_push_properties());
3143         EXPECT_FALSE(grandchild2_->needs_push_properties());
3144         EXPECT_FALSE(grandchild2_->descendant_needs_push_properties());
3145         EXPECT_FALSE(grandchild3_->needs_push_properties());
3146         EXPECT_FALSE(grandchild3_->descendant_needs_push_properties());
3147
3148         grandchild1_->RemoveFromParent();
3149         grandchild1_->SetPosition(gfx::Point(1, 1));
3150
3151         EXPECT_FALSE(root_->needs_push_properties());
3152         EXPECT_FALSE(root_->descendant_needs_push_properties());
3153         EXPECT_FALSE(child_->needs_push_properties());
3154         EXPECT_FALSE(child_->descendant_needs_push_properties());
3155         EXPECT_FALSE(grandchild2_->needs_push_properties());
3156         EXPECT_FALSE(grandchild2_->descendant_needs_push_properties());
3157         EXPECT_FALSE(grandchild3_->needs_push_properties());
3158         EXPECT_FALSE(grandchild3_->descendant_needs_push_properties());
3159
3160         child_->AddChild(grandchild1_);
3161
3162         EXPECT_FALSE(root_->needs_push_properties());
3163         EXPECT_TRUE(root_->descendant_needs_push_properties());
3164         EXPECT_FALSE(child_->needs_push_properties());
3165         EXPECT_TRUE(child_->descendant_needs_push_properties());
3166         EXPECT_TRUE(grandchild1_->needs_push_properties());
3167         EXPECT_FALSE(grandchild1_->descendant_needs_push_properties());
3168         EXPECT_FALSE(grandchild2_->needs_push_properties());
3169         EXPECT_FALSE(grandchild2_->descendant_needs_push_properties());
3170         EXPECT_FALSE(grandchild3_->needs_push_properties());
3171         EXPECT_FALSE(grandchild3_->descendant_needs_push_properties());
3172
3173         grandchild2_->SetPosition(gfx::Point(1, 1));
3174
3175         EXPECT_FALSE(root_->needs_push_properties());
3176         EXPECT_TRUE(root_->descendant_needs_push_properties());
3177         EXPECT_FALSE(child_->needs_push_properties());
3178         EXPECT_TRUE(child_->descendant_needs_push_properties());
3179         EXPECT_TRUE(grandchild1_->needs_push_properties());
3180         EXPECT_FALSE(grandchild1_->descendant_needs_push_properties());
3181         EXPECT_TRUE(grandchild2_->needs_push_properties());
3182         EXPECT_FALSE(grandchild2_->descendant_needs_push_properties());
3183         EXPECT_FALSE(grandchild3_->needs_push_properties());
3184         EXPECT_FALSE(grandchild3_->descendant_needs_push_properties());
3185
3186         // grandchild2_ will still need a push properties.
3187         grandchild1_->RemoveFromParent();
3188
3189         EXPECT_FALSE(root_->needs_push_properties());
3190         EXPECT_TRUE(root_->descendant_needs_push_properties());
3191         EXPECT_FALSE(child_->needs_push_properties());
3192         EXPECT_TRUE(child_->descendant_needs_push_properties());
3193
3194         // grandchild3_ does not need a push properties, so recursing should
3195         // no longer be needed.
3196         grandchild2_->RemoveFromParent();
3197
3198         EXPECT_FALSE(root_->needs_push_properties());
3199         EXPECT_FALSE(root_->descendant_needs_push_properties());
3200         EXPECT_FALSE(child_->needs_push_properties());
3201         EXPECT_FALSE(child_->descendant_needs_push_properties());
3202         EndTest();
3203         break;
3204     }
3205   }
3206 };
3207
3208 MULTI_THREAD_TEST_F(LayerTreeHostTestPushPropertiesRemovingChildStopsRecursion);
3209
3210 class LayerTreeHostTestPushPropertiesRemovingChildStopsRecursionWithPersistence
3211     : public LayerTreeHostTestCasePushPropertiesThreeGrandChildren {
3212  protected:
3213   void DidCommitAndDrawFrame() override {
3214     int last_source_frame_number = layer_tree_host()->source_frame_number() - 1;
3215     switch (last_source_frame_number) {
3216       case 0:
3217         layer_tree_host()->SetRootLayer(root_);
3218         grandchild1_->set_persist_needs_push_properties(true);
3219         grandchild2_->set_persist_needs_push_properties(true);
3220         break;
3221       case 1:
3222         EXPECT_FALSE(root_->needs_push_properties());
3223         EXPECT_TRUE(root_->descendant_needs_push_properties());
3224         EXPECT_FALSE(child_->needs_push_properties());
3225         EXPECT_TRUE(child_->descendant_needs_push_properties());
3226         EXPECT_TRUE(grandchild1_->needs_push_properties());
3227         EXPECT_FALSE(grandchild1_->descendant_needs_push_properties());
3228         EXPECT_TRUE(grandchild2_->needs_push_properties());
3229         EXPECT_FALSE(grandchild2_->descendant_needs_push_properties());
3230         EXPECT_FALSE(grandchild3_->needs_push_properties());
3231         EXPECT_FALSE(grandchild3_->descendant_needs_push_properties());
3232
3233         // grandchild2_ will still need a push properties.
3234         grandchild1_->RemoveFromParent();
3235
3236         EXPECT_FALSE(root_->needs_push_properties());
3237         EXPECT_TRUE(root_->descendant_needs_push_properties());
3238         EXPECT_FALSE(child_->needs_push_properties());
3239         EXPECT_TRUE(child_->descendant_needs_push_properties());
3240
3241         // grandchild3_ does not need a push properties, so recursing should
3242         // no longer be needed.
3243         grandchild2_->RemoveFromParent();
3244
3245         EXPECT_FALSE(root_->needs_push_properties());
3246         EXPECT_FALSE(root_->descendant_needs_push_properties());
3247         EXPECT_FALSE(child_->needs_push_properties());
3248         EXPECT_FALSE(child_->descendant_needs_push_properties());
3249         EndTest();
3250         break;
3251     }
3252   }
3253 };
3254
3255 MULTI_THREAD_TEST_F(
3256     LayerTreeHostTestPushPropertiesRemovingChildStopsRecursionWithPersistence);
3257
3258 class LayerTreeHostTestPushPropertiesSetPropertiesWhileOutsideTree
3259     : public LayerTreeHostTestCasePushPropertiesThreeGrandChildren {
3260  protected:
3261   void DidCommitAndDrawFrame() override {
3262     int last_source_frame_number = layer_tree_host()->source_frame_number() - 1;
3263     switch (last_source_frame_number) {
3264       case 0:
3265         layer_tree_host()->SetRootLayer(root_);
3266         break;
3267       case 1:
3268         EXPECT_FALSE(root_->needs_push_properties());
3269         EXPECT_FALSE(root_->descendant_needs_push_properties());
3270         EXPECT_FALSE(child_->needs_push_properties());
3271         EXPECT_FALSE(child_->descendant_needs_push_properties());
3272         EXPECT_FALSE(grandchild1_->needs_push_properties());
3273         EXPECT_FALSE(grandchild1_->descendant_needs_push_properties());
3274         EXPECT_FALSE(grandchild2_->needs_push_properties());
3275         EXPECT_FALSE(grandchild2_->descendant_needs_push_properties());
3276         EXPECT_FALSE(grandchild3_->needs_push_properties());
3277         EXPECT_FALSE(grandchild3_->descendant_needs_push_properties());
3278
3279         // Change grandchildren while their parent is not in the tree.
3280         child_->RemoveFromParent();
3281         grandchild1_->SetPosition(gfx::Point(1, 1));
3282         grandchild2_->SetPosition(gfx::Point(1, 1));
3283         root_->AddChild(child_);
3284
3285         EXPECT_FALSE(root_->needs_push_properties());
3286         EXPECT_TRUE(root_->descendant_needs_push_properties());
3287         EXPECT_TRUE(child_->needs_push_properties());
3288         EXPECT_TRUE(child_->descendant_needs_push_properties());
3289         EXPECT_TRUE(grandchild1_->needs_push_properties());
3290         EXPECT_FALSE(grandchild1_->descendant_needs_push_properties());
3291         EXPECT_TRUE(grandchild2_->needs_push_properties());
3292         EXPECT_FALSE(grandchild2_->descendant_needs_push_properties());
3293         EXPECT_TRUE(grandchild3_->needs_push_properties());
3294         EXPECT_FALSE(grandchild3_->descendant_needs_push_properties());
3295
3296         grandchild1_->RemoveFromParent();
3297
3298         EXPECT_FALSE(root_->needs_push_properties());
3299         EXPECT_TRUE(root_->descendant_needs_push_properties());
3300         EXPECT_TRUE(child_->needs_push_properties());
3301         EXPECT_TRUE(child_->descendant_needs_push_properties());
3302
3303         grandchild2_->RemoveFromParent();
3304
3305         EXPECT_FALSE(root_->needs_push_properties());
3306         EXPECT_TRUE(root_->descendant_needs_push_properties());
3307         EXPECT_TRUE(child_->needs_push_properties());
3308         EXPECT_TRUE(child_->descendant_needs_push_properties());
3309
3310         grandchild3_->RemoveFromParent();
3311
3312         EXPECT_FALSE(root_->needs_push_properties());
3313         EXPECT_TRUE(root_->descendant_needs_push_properties());
3314         EXPECT_TRUE(child_->needs_push_properties());
3315         EXPECT_FALSE(child_->descendant_needs_push_properties());
3316
3317         EndTest();
3318         break;
3319     }
3320   }
3321 };
3322
3323 MULTI_THREAD_TEST_F(
3324     LayerTreeHostTestPushPropertiesSetPropertiesWhileOutsideTree);
3325
3326 class LayerTreeHostTestPushPropertiesSetPropertyInParentThenChild
3327     : public LayerTreeHostTestCasePushPropertiesThreeGrandChildren {
3328  protected:
3329   void DidCommitAndDrawFrame() override {
3330     int last_source_frame_number = layer_tree_host()->source_frame_number() - 1;
3331     switch (last_source_frame_number) {
3332       case 0:
3333         layer_tree_host()->SetRootLayer(root_);
3334         break;
3335       case 1:
3336         EXPECT_FALSE(root_->needs_push_properties());
3337         EXPECT_FALSE(root_->descendant_needs_push_properties());
3338         EXPECT_FALSE(child_->needs_push_properties());
3339         EXPECT_FALSE(child_->descendant_needs_push_properties());
3340         EXPECT_FALSE(grandchild1_->needs_push_properties());
3341         EXPECT_FALSE(grandchild1_->descendant_needs_push_properties());
3342         EXPECT_FALSE(grandchild2_->needs_push_properties());
3343         EXPECT_FALSE(grandchild2_->descendant_needs_push_properties());
3344         EXPECT_FALSE(grandchild3_->needs_push_properties());
3345         EXPECT_FALSE(grandchild3_->descendant_needs_push_properties());
3346
3347         child_->SetPosition(gfx::Point(1, 1));
3348         grandchild1_->SetPosition(gfx::Point(1, 1));
3349         grandchild2_->SetPosition(gfx::Point(1, 1));
3350
3351         EXPECT_FALSE(root_->needs_push_properties());
3352         EXPECT_TRUE(root_->descendant_needs_push_properties());
3353         EXPECT_TRUE(child_->needs_push_properties());
3354         EXPECT_TRUE(child_->descendant_needs_push_properties());
3355         EXPECT_TRUE(grandchild1_->needs_push_properties());
3356         EXPECT_FALSE(grandchild1_->descendant_needs_push_properties());
3357         EXPECT_TRUE(grandchild2_->needs_push_properties());
3358         EXPECT_FALSE(grandchild2_->descendant_needs_push_properties());
3359         EXPECT_FALSE(grandchild3_->needs_push_properties());
3360         EXPECT_FALSE(grandchild3_->descendant_needs_push_properties());
3361
3362         grandchild1_->RemoveFromParent();
3363
3364         EXPECT_FALSE(root_->needs_push_properties());
3365         EXPECT_TRUE(root_->descendant_needs_push_properties());
3366         EXPECT_TRUE(child_->needs_push_properties());
3367         EXPECT_TRUE(child_->descendant_needs_push_properties());
3368
3369         grandchild2_->RemoveFromParent();
3370
3371         EXPECT_FALSE(root_->needs_push_properties());
3372         EXPECT_TRUE(root_->descendant_needs_push_properties());
3373         EXPECT_TRUE(child_->needs_push_properties());
3374         EXPECT_FALSE(child_->descendant_needs_push_properties());
3375
3376         child_->RemoveFromParent();
3377
3378         EXPECT_FALSE(root_->needs_push_properties());
3379         EXPECT_FALSE(root_->descendant_needs_push_properties());
3380
3381         EndTest();
3382         break;
3383     }
3384   }
3385 };
3386
3387 MULTI_THREAD_TEST_F(
3388     LayerTreeHostTestPushPropertiesSetPropertyInParentThenChild);
3389
3390 class LayerTreeHostTestPushPropertiesSetPropertyInChildThenParent
3391     : public LayerTreeHostTestCasePushPropertiesThreeGrandChildren {
3392  protected:
3393   void DidCommitAndDrawFrame() override {
3394     int last_source_frame_number = layer_tree_host()->source_frame_number() - 1;
3395     switch (last_source_frame_number) {
3396       case 0:
3397         layer_tree_host()->SetRootLayer(root_);
3398         break;
3399       case 1:
3400         EXPECT_FALSE(root_->needs_push_properties());
3401         EXPECT_FALSE(root_->descendant_needs_push_properties());
3402         EXPECT_FALSE(child_->needs_push_properties());
3403         EXPECT_FALSE(child_->descendant_needs_push_properties());
3404         EXPECT_FALSE(grandchild1_->needs_push_properties());
3405         EXPECT_FALSE(grandchild1_->descendant_needs_push_properties());
3406         EXPECT_FALSE(grandchild2_->needs_push_properties());
3407         EXPECT_FALSE(grandchild2_->descendant_needs_push_properties());
3408         EXPECT_FALSE(grandchild3_->needs_push_properties());
3409         EXPECT_FALSE(grandchild3_->descendant_needs_push_properties());
3410
3411         grandchild1_->SetPosition(gfx::Point(1, 1));
3412         grandchild2_->SetPosition(gfx::Point(1, 1));
3413         child_->SetPosition(gfx::Point(1, 1));
3414
3415         EXPECT_FALSE(root_->needs_push_properties());
3416         EXPECT_TRUE(root_->descendant_needs_push_properties());
3417         EXPECT_TRUE(child_->needs_push_properties());
3418         EXPECT_TRUE(child_->descendant_needs_push_properties());
3419         EXPECT_TRUE(grandchild1_->needs_push_properties());
3420         EXPECT_FALSE(grandchild1_->descendant_needs_push_properties());
3421         EXPECT_TRUE(grandchild2_->needs_push_properties());
3422         EXPECT_FALSE(grandchild2_->descendant_needs_push_properties());
3423         EXPECT_FALSE(grandchild3_->needs_push_properties());
3424         EXPECT_FALSE(grandchild3_->descendant_needs_push_properties());
3425
3426         grandchild1_->RemoveFromParent();
3427
3428         EXPECT_FALSE(root_->needs_push_properties());
3429         EXPECT_TRUE(root_->descendant_needs_push_properties());
3430         EXPECT_TRUE(child_->needs_push_properties());
3431         EXPECT_TRUE(child_->descendant_needs_push_properties());
3432
3433         grandchild2_->RemoveFromParent();
3434
3435         EXPECT_FALSE(root_->needs_push_properties());
3436         EXPECT_TRUE(root_->descendant_needs_push_properties());
3437         EXPECT_TRUE(child_->needs_push_properties());
3438         EXPECT_FALSE(child_->descendant_needs_push_properties());
3439
3440         child_->RemoveFromParent();
3441
3442         EXPECT_FALSE(root_->needs_push_properties());
3443         EXPECT_FALSE(root_->descendant_needs_push_properties());
3444
3445         EndTest();
3446         break;
3447     }
3448   }
3449 };
3450
3451 MULTI_THREAD_TEST_F(
3452     LayerTreeHostTestPushPropertiesSetPropertyInChildThenParent);
3453
3454 // This test verifies that the tree activation callback is invoked correctly.
3455 class LayerTreeHostTestTreeActivationCallback : public LayerTreeHostTest {
3456  public:
3457   LayerTreeHostTestTreeActivationCallback()
3458       : num_commits_(0), callback_count_(0) {}
3459
3460   void BeginTest() override {
3461     PostSetNeedsCommitToMainThread();
3462   }
3463
3464   DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
3465                                    LayerTreeHostImpl::FrameData* frame_data,
3466                                    DrawResult draw_result) override {
3467     ++num_commits_;
3468     switch (num_commits_) {
3469       case 1:
3470         EXPECT_EQ(0, callback_count_);
3471         callback_count_ = 0;
3472         SetCallback(true);
3473         PostSetNeedsCommitToMainThread();
3474         break;
3475       case 2:
3476         EXPECT_EQ(1, callback_count_);
3477         callback_count_ = 0;
3478         SetCallback(false);
3479         PostSetNeedsCommitToMainThread();
3480         break;
3481       case 3:
3482         EXPECT_EQ(0, callback_count_);
3483         callback_count_ = 0;
3484         EndTest();
3485         break;
3486       default:
3487         ADD_FAILURE() << num_commits_;
3488         EndTest();
3489         break;
3490     }
3491     return LayerTreeHostTest::PrepareToDrawOnThread(
3492         host_impl, frame_data, draw_result);
3493   }
3494
3495   void AfterTest() override { EXPECT_EQ(3, num_commits_); }
3496
3497   void SetCallback(bool enable) {
3498     output_surface()->SetTreeActivationCallback(
3499         enable
3500             ? base::Bind(
3501                   &LayerTreeHostTestTreeActivationCallback::ActivationCallback,
3502                   base::Unretained(this))
3503             : base::Closure());
3504   }
3505
3506   void ActivationCallback() { ++callback_count_; }
3507
3508   int num_commits_;
3509   int callback_count_;
3510 };
3511
3512 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestTreeActivationCallback);
3513
3514 class LayerInvalidateCausesDraw : public LayerTreeHostTest {
3515  public:
3516   LayerInvalidateCausesDraw() : num_commits_(0), num_draws_(0) {}
3517
3518   void BeginTest() override {
3519     ASSERT_TRUE(invalidate_layer_)
3520         << "Derived tests must set this in SetupTree";
3521
3522     // One initial commit.
3523     PostSetNeedsCommitToMainThread();
3524   }
3525
3526   void DidCommitAndDrawFrame() override {
3527     // After commit, invalidate the layer.  This should cause a commit.
3528     if (layer_tree_host()->source_frame_number() == 1)
3529       invalidate_layer_->SetNeedsDisplay();
3530   }
3531
3532   void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
3533     num_draws_++;
3534     if (impl->active_tree()->source_frame_number() == 1)
3535       EndTest();
3536   }
3537
3538   void CommitCompleteOnThread(LayerTreeHostImpl* impl) override {
3539     num_commits_++;
3540   }
3541
3542   void AfterTest() override {
3543     EXPECT_GE(2, num_commits_);
3544     EXPECT_GE(2, num_draws_);
3545   }
3546
3547  protected:
3548   scoped_refptr<Layer> invalidate_layer_;
3549
3550  private:
3551   int num_commits_;
3552   int num_draws_;
3553 };
3554
3555 // VideoLayer must support being invalidated and then passing that along
3556 // to the compositor thread, even though no resources are updated in
3557 // response to that invalidation.
3558 class LayerTreeHostTestVideoLayerInvalidate : public LayerInvalidateCausesDraw {
3559  public:
3560   void SetupTree() override {
3561     LayerTreeHostTest::SetupTree();
3562     scoped_refptr<VideoLayer> video_layer = VideoLayer::Create(
3563         layer_settings(), &provider_, media::VIDEO_ROTATION_0);
3564     video_layer->SetBounds(gfx::Size(10, 10));
3565     video_layer->SetIsDrawable(true);
3566     layer_tree_host()->root_layer()->AddChild(video_layer);
3567
3568     invalidate_layer_ = video_layer;
3569   }
3570
3571  private:
3572   FakeVideoFrameProvider provider_;
3573 };
3574
3575 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestVideoLayerInvalidate);
3576
3577 // IOSurfaceLayer must support being invalidated and then passing that along
3578 // to the compositor thread, even though no resources are updated in
3579 // response to that invalidation.
3580 class LayerTreeHostTestIOSurfaceLayerInvalidate
3581     : public LayerInvalidateCausesDraw {
3582  public:
3583   void SetupTree() override {
3584     LayerTreeHostTest::SetupTree();
3585     scoped_refptr<IOSurfaceLayer> layer =
3586         IOSurfaceLayer::Create(layer_settings());
3587     layer->SetBounds(gfx::Size(10, 10));
3588     uint32_t fake_io_surface_id = 7;
3589     layer->SetIOSurfaceProperties(fake_io_surface_id, layer->bounds());
3590     layer->SetIsDrawable(true);
3591     layer_tree_host()->root_layer()->AddChild(layer);
3592
3593     invalidate_layer_ = layer;
3594   }
3595 };
3596
3597 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestIOSurfaceLayerInvalidate);
3598
3599 class LayerTreeHostTestPushHiddenLayer : public LayerTreeHostTest {
3600  protected:
3601   void SetupTree() override {
3602     root_layer_ = Layer::Create(layer_settings());
3603     root_layer_->CreateRenderSurface();
3604     root_layer_->SetPosition(gfx::Point());
3605     root_layer_->SetBounds(gfx::Size(10, 10));
3606
3607     parent_layer_ = SolidColorLayer::Create(layer_settings());
3608     parent_layer_->SetPosition(gfx::Point());
3609     parent_layer_->SetBounds(gfx::Size(10, 10));
3610     parent_layer_->SetIsDrawable(true);
3611     root_layer_->AddChild(parent_layer_);
3612
3613     child_layer_ = SolidColorLayer::Create(layer_settings());
3614     child_layer_->SetPosition(gfx::Point());
3615     child_layer_->SetBounds(gfx::Size(10, 10));
3616     child_layer_->SetIsDrawable(true);
3617     parent_layer_->AddChild(child_layer_);
3618
3619     layer_tree_host()->SetRootLayer(root_layer_);
3620     LayerTreeHostTest::SetupTree();
3621   }
3622
3623   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
3624
3625   void DidCommitAndDrawFrame() override {
3626     switch (layer_tree_host()->source_frame_number()) {
3627       case 1:
3628         // The layer type used does not need to push properties every frame.
3629         EXPECT_FALSE(child_layer_->needs_push_properties());
3630
3631         // Change the bounds of the child layer, but make it skipped
3632         // by CalculateDrawProperties.
3633         parent_layer_->SetOpacity(0.f);
3634         child_layer_->SetBounds(gfx::Size(5, 5));
3635         break;
3636       case 2:
3637         // The bounds of the child layer were pushed to the impl side.
3638         EXPECT_FALSE(child_layer_->needs_push_properties());
3639
3640         EndTest();
3641         break;
3642     }
3643   }
3644
3645   void DidActivateTreeOnThread(LayerTreeHostImpl* impl) override {
3646     LayerImpl* root = impl->active_tree()->root_layer();
3647     LayerImpl* parent = root->children()[0];
3648     LayerImpl* child = parent->children()[0];
3649
3650     switch (impl->active_tree()->source_frame_number()) {
3651       case 1:
3652         EXPECT_EQ(gfx::Size(5, 5).ToString(), child->bounds().ToString());
3653         break;
3654     }
3655   }
3656
3657   void AfterTest() override {}
3658
3659   scoped_refptr<Layer> root_layer_;
3660   scoped_refptr<SolidColorLayer> parent_layer_;
3661   scoped_refptr<SolidColorLayer> child_layer_;
3662 };
3663
3664 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestPushHiddenLayer);
3665
3666 class LayerTreeHostTestUpdateLayerInEmptyViewport : public LayerTreeHostTest {
3667  protected:
3668   void SetupTree() override {
3669     root_layer_ = FakePictureLayer::Create(layer_settings(), &client_);
3670     root_layer_->SetBounds(gfx::Size(10, 10));
3671
3672     layer_tree_host()->SetRootLayer(root_layer_);
3673     LayerTreeHostTest::SetupTree();
3674   }
3675
3676   void BeginTest() override {
3677     // The viewport is empty, but we still need to update layers on the main
3678     // thread.
3679     layer_tree_host()->SetViewportSize(gfx::Size(0, 0));
3680     PostSetNeedsCommitToMainThread();
3681   }
3682
3683   void DidCommit() override {
3684     // The layer should be updated even though the viewport is empty, so we
3685     // are capable of drawing it on the impl tree.
3686     EXPECT_GT(root_layer_->update_count(), 0);
3687     EndTest();
3688   }
3689
3690   void AfterTest() override {}
3691
3692   FakeContentLayerClient client_;
3693   scoped_refptr<FakePictureLayer> root_layer_;
3694 };
3695
3696 MULTI_THREAD_TEST_F(LayerTreeHostTestUpdateLayerInEmptyViewport);
3697
3698 class LayerTreeHostTestMaxTransferBufferUsageBytes : public LayerTreeHostTest {
3699  protected:
3700   void InitializeSettings(LayerTreeSettings* settings) override {
3701     // Testing async uploads.
3702     settings->use_zero_copy = false;
3703     settings->use_one_copy = false;
3704   }
3705
3706   scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface() override {
3707     scoped_refptr<TestContextProvider> context_provider =
3708         TestContextProvider::Create();
3709     context_provider->SetMaxTransferBufferUsageBytes(512 * 512);
3710     if (delegating_renderer())
3711       return FakeOutputSurface::CreateDelegating3d(context_provider);
3712     else
3713       return FakeOutputSurface::Create3d(context_provider);
3714   }
3715
3716   void SetupTree() override {
3717     client_.set_fill_with_nonsolid_color(true);
3718     scoped_refptr<FakePictureLayer> root_layer =
3719         FakePictureLayer::Create(layer_settings(), &client_);
3720     root_layer->SetBounds(gfx::Size(1024, 1024));
3721     root_layer->SetIsDrawable(true);
3722
3723     layer_tree_host()->SetRootLayer(root_layer);
3724     LayerTreeHostTest::SetupTree();
3725   }
3726
3727   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
3728
3729   void DidActivateTreeOnThread(LayerTreeHostImpl* impl) override {
3730     TestWebGraphicsContext3D* context = TestContext();
3731
3732     // Expect that the transfer buffer memory used is equal to the
3733     // MaxTransferBufferUsageBytes value set in CreateOutputSurface.
3734     EXPECT_EQ(512 * 512u, context->max_used_transfer_buffer_usage_bytes());
3735     EndTest();
3736   }
3737
3738   void AfterTest() override {}
3739
3740  private:
3741   FakeContentLayerClient client_;
3742 };
3743
3744 // Impl-side painting is a multi-threaded compositor feature.
3745 MULTI_THREAD_TEST_F(LayerTreeHostTestMaxTransferBufferUsageBytes);
3746
3747 class LayerTreeHostTestSetMemoryPolicyOnLostOutputSurface
3748     : public LayerTreeHostTest {
3749  protected:
3750   LayerTreeHostTestSetMemoryPolicyOnLostOutputSurface()
3751       : first_output_surface_memory_limit_(4321234),
3752         second_output_surface_memory_limit_(1234321) {}
3753
3754   scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface() override {
3755     if (!first_context_provider_.get()) {
3756       first_context_provider_ = TestContextProvider::Create();
3757     } else {
3758       EXPECT_FALSE(second_context_provider_.get());
3759       second_context_provider_ = TestContextProvider::Create();
3760     }
3761
3762     scoped_refptr<TestContextProvider> provider(second_context_provider_.get()
3763                                                     ? second_context_provider_
3764                                                     : first_context_provider_);
3765     scoped_ptr<FakeOutputSurface> output_surface;
3766     if (delegating_renderer())
3767       output_surface = FakeOutputSurface::CreateDelegating3d(provider);
3768     else
3769       output_surface = FakeOutputSurface::Create3d(provider);
3770     output_surface->SetMemoryPolicyToSetAtBind(
3771         make_scoped_ptr(new ManagedMemoryPolicy(
3772             second_context_provider_.get() ? second_output_surface_memory_limit_
3773                                            : first_output_surface_memory_limit_,
3774             gpu::MemoryAllocation::CUTOFF_ALLOW_NICE_TO_HAVE,
3775             ManagedMemoryPolicy::kDefaultNumResourcesLimit)));
3776     return output_surface.Pass();
3777   }
3778
3779   void SetupTree() override {
3780     root_ = FakePictureLayer::Create(layer_settings(), &client_);
3781     root_->SetBounds(gfx::Size(20, 20));
3782     layer_tree_host()->SetRootLayer(root_);
3783     LayerTreeHostTest::SetupTree();
3784   }
3785
3786   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
3787
3788   void DidCommitAndDrawFrame() override {
3789     // Lost context sometimes takes two frames to recreate. The third frame
3790     // is sometimes aborted, so wait until the fourth frame to verify that
3791     // the memory has been set, and the fifth frame to end the test.
3792     if (layer_tree_host()->source_frame_number() < 5) {
3793       layer_tree_host()->SetNeedsCommit();
3794     } else if (layer_tree_host()->source_frame_number() == 5) {
3795       EndTest();
3796     }
3797   }
3798
3799   void SwapBuffersOnThread(LayerTreeHostImpl* impl, bool result) override {
3800     switch (impl->active_tree()->source_frame_number()) {
3801       case 1:
3802         EXPECT_EQ(first_output_surface_memory_limit_,
3803                   impl->memory_allocation_limit_bytes());
3804         // Lose the output surface.
3805         first_context_provider_->TestContext3d()->loseContextCHROMIUM(
3806             GL_GUILTY_CONTEXT_RESET_ARB, GL_INNOCENT_CONTEXT_RESET_ARB);
3807         break;
3808       case 4:
3809         EXPECT_EQ(second_output_surface_memory_limit_,
3810                   impl->memory_allocation_limit_bytes());
3811         break;
3812     }
3813   }
3814
3815   void AfterTest() override {}
3816
3817   scoped_refptr<TestContextProvider> first_context_provider_;
3818   scoped_refptr<TestContextProvider> second_context_provider_;
3819   size_t first_output_surface_memory_limit_;
3820   size_t second_output_surface_memory_limit_;
3821   FakeContentLayerClient client_;
3822   scoped_refptr<Layer> root_;
3823 };
3824
3825 SINGLE_AND_MULTI_THREAD_TEST_F(
3826     LayerTreeHostTestSetMemoryPolicyOnLostOutputSurface);
3827
3828 struct TestSwapPromiseResult {
3829   TestSwapPromiseResult()
3830       : did_activate_called(false),
3831         did_swap_called(false),
3832         did_not_swap_called(false),
3833         dtor_called(false),
3834         reason(SwapPromise::COMMIT_FAILS) {}
3835
3836   bool did_activate_called;
3837   bool did_swap_called;
3838   bool did_not_swap_called;
3839   bool dtor_called;
3840   SwapPromise::DidNotSwapReason reason;
3841   base::Lock lock;
3842 };
3843
3844 class TestSwapPromise : public SwapPromise {
3845  public:
3846   explicit TestSwapPromise(TestSwapPromiseResult* result) : result_(result) {}
3847
3848   ~TestSwapPromise() override {
3849     base::AutoLock lock(result_->lock);
3850     result_->dtor_called = true;
3851   }
3852
3853   void DidActivate() override {
3854     base::AutoLock lock(result_->lock);
3855     EXPECT_FALSE(result_->did_activate_called);
3856     EXPECT_FALSE(result_->did_swap_called);
3857     EXPECT_FALSE(result_->did_not_swap_called);
3858     result_->did_activate_called = true;
3859   }
3860
3861   void DidSwap(CompositorFrameMetadata* metadata) override {
3862     base::AutoLock lock(result_->lock);
3863     EXPECT_TRUE(result_->did_activate_called);
3864     EXPECT_FALSE(result_->did_swap_called);
3865     EXPECT_FALSE(result_->did_not_swap_called);
3866     result_->did_swap_called = true;
3867   }
3868
3869   void DidNotSwap(DidNotSwapReason reason) override {
3870     base::AutoLock lock(result_->lock);
3871     EXPECT_FALSE(result_->did_swap_called);
3872     EXPECT_FALSE(result_->did_not_swap_called);
3873     EXPECT_FALSE(result_->did_activate_called &&
3874                  reason != DidNotSwapReason::SWAP_FAILS);
3875     result_->did_not_swap_called = true;
3876     result_->reason = reason;
3877   }
3878
3879   int64 TraceId() const override { return 0; }
3880
3881  private:
3882   // Not owned.
3883   TestSwapPromiseResult* result_;
3884 };
3885
3886 class LayerTreeHostTestBreakSwapPromise : public LayerTreeHostTest {
3887  protected:
3888   LayerTreeHostTestBreakSwapPromise()
3889       : commit_count_(0), commit_complete_count_(0) {}
3890
3891   void WillBeginMainFrame() override {
3892     ASSERT_LE(commit_count_, 2);
3893     scoped_ptr<SwapPromise> swap_promise(
3894         new TestSwapPromise(&swap_promise_result_[commit_count_]));
3895     layer_tree_host()->QueueSwapPromise(swap_promise.Pass());
3896   }
3897
3898   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
3899
3900   void DidCommit() override {
3901     commit_count_++;
3902     if (commit_count_ == 2) {
3903       // This commit will finish.
3904       layer_tree_host()->SetNeedsCommit();
3905     }
3906   }
3907
3908   void WillActivateTreeOnThread(LayerTreeHostImpl* host_impl) override {
3909     if (host_impl->pending_tree()) {
3910       int frame = host_impl->pending_tree()->source_frame_number();
3911       base::AutoLock lock(swap_promise_result_[frame].lock);
3912       EXPECT_FALSE(swap_promise_result_[frame].did_activate_called);
3913       EXPECT_FALSE(swap_promise_result_[frame].did_swap_called);
3914     }
3915   }
3916
3917   void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) override {
3918     int frame = host_impl->active_tree()->source_frame_number();
3919     base::AutoLock lock(swap_promise_result_[frame].lock);
3920     EXPECT_TRUE(swap_promise_result_[frame].did_activate_called);
3921     EXPECT_FALSE(swap_promise_result_[frame].did_swap_called);
3922   }
3923
3924   void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) override {
3925     commit_complete_count_++;
3926     if (commit_complete_count_ == 1) {
3927       // This commit will be aborted because no actual update.
3928       PostSetNeedsUpdateLayersToMainThread();
3929     }
3930   }
3931
3932   void SwapBuffersOnThread(LayerTreeHostImpl* host_impl, bool result) override {
3933     int frame = host_impl->active_tree()->source_frame_number();
3934     if (frame == 2) {
3935       EndTest();
3936     }
3937   }
3938
3939   void AfterTest() override {
3940     // 3 commits are scheduled. 2 completes. 1 is aborted.
3941     EXPECT_EQ(commit_count_, 3);
3942     EXPECT_EQ(commit_complete_count_, 2);
3943
3944     {
3945       // The first commit completes and causes swap buffer which finishes
3946       // the promise.
3947       base::AutoLock lock(swap_promise_result_[0].lock);
3948       EXPECT_TRUE(swap_promise_result_[0].did_swap_called);
3949       EXPECT_FALSE(swap_promise_result_[0].did_not_swap_called);
3950       EXPECT_TRUE(swap_promise_result_[0].dtor_called);
3951     }
3952
3953     {
3954       // The second commit is aborted since it contains no updates.
3955       base::AutoLock lock(swap_promise_result_[1].lock);
3956       EXPECT_FALSE(swap_promise_result_[1].did_activate_called);
3957       EXPECT_FALSE(swap_promise_result_[1].did_swap_called);
3958       EXPECT_TRUE(swap_promise_result_[1].did_not_swap_called);
3959       EXPECT_EQ(SwapPromise::COMMIT_NO_UPDATE, swap_promise_result_[1].reason);
3960       EXPECT_TRUE(swap_promise_result_[1].dtor_called);
3961     }
3962
3963     {
3964       // The last commit completes but it does not cause swap buffer because
3965       // there is no damage in the frame data.
3966       base::AutoLock lock(swap_promise_result_[2].lock);
3967       EXPECT_TRUE(swap_promise_result_[2].did_activate_called);
3968       EXPECT_FALSE(swap_promise_result_[2].did_swap_called);
3969       EXPECT_TRUE(swap_promise_result_[2].did_not_swap_called);
3970       EXPECT_EQ(SwapPromise::SWAP_FAILS, swap_promise_result_[2].reason);
3971       EXPECT_TRUE(swap_promise_result_[2].dtor_called);
3972     }
3973   }
3974
3975   int commit_count_;
3976   int commit_complete_count_;
3977   TestSwapPromiseResult swap_promise_result_[3];
3978 };
3979
3980 MULTI_THREAD_TEST_F(LayerTreeHostTestBreakSwapPromise);
3981
3982 class LayerTreeHostTestKeepSwapPromise : public LayerTreeTest {
3983  public:
3984   LayerTreeHostTestKeepSwapPromise() {}
3985
3986   void BeginTest() override {
3987     layer_ = SolidColorLayer::Create(layer_settings());
3988     layer_->SetIsDrawable(true);
3989     layer_->SetBounds(gfx::Size(10, 10));
3990     layer_tree_host()->SetRootLayer(layer_);
3991     gfx::Size bounds(100, 100);
3992     layer_tree_host()->SetViewportSize(bounds);
3993     PostSetNeedsCommitToMainThread();
3994   }
3995
3996   void DidCommit() override {
3997     MainThreadTaskRunner()->PostTask(
3998         FROM_HERE, base::Bind(&LayerTreeHostTestKeepSwapPromise::ChangeFrame,
3999                               base::Unretained(this)));
4000   }
4001
4002   void ChangeFrame() {
4003     switch (layer_tree_host()->source_frame_number()) {
4004       case 1:
4005         layer_->SetBounds(gfx::Size(10, 11));
4006         layer_tree_host()->QueueSwapPromise(
4007             make_scoped_ptr(new TestSwapPromise(&swap_promise_result_)));
4008         break;
4009       case 2:
4010         break;
4011       default:
4012         NOTREACHED();
4013         break;
4014     }
4015   }
4016
4017   void WillActivateTreeOnThread(LayerTreeHostImpl* host_impl) override {
4018     if (host_impl->pending_tree()) {
4019       if (host_impl->pending_tree()->source_frame_number() == 1) {
4020         base::AutoLock lock(swap_promise_result_.lock);
4021         EXPECT_FALSE(swap_promise_result_.did_activate_called);
4022         EXPECT_FALSE(swap_promise_result_.did_swap_called);
4023         SetCallback(true);
4024       } else {
4025         SetCallback(false);
4026       }
4027     }
4028   }
4029
4030   void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) override {
4031     if (host_impl->active_tree()->source_frame_number() == 1) {
4032       base::AutoLock lock(swap_promise_result_.lock);
4033       EXPECT_TRUE(swap_promise_result_.did_activate_called);
4034       EXPECT_FALSE(swap_promise_result_.did_swap_called);
4035     }
4036   }
4037
4038   void ActivationCallback() {
4039     // DidActivate needs to happen before the tree activation callback.
4040     base::AutoLock lock(swap_promise_result_.lock);
4041     EXPECT_TRUE(swap_promise_result_.did_activate_called);
4042   }
4043
4044   void SetCallback(bool enable) {
4045     output_surface()->SetTreeActivationCallback(
4046         enable
4047             ? base::Bind(&LayerTreeHostTestKeepSwapPromise::ActivationCallback,
4048                          base::Unretained(this))
4049             : base::Closure());
4050   }
4051
4052   void SwapBuffersOnThread(LayerTreeHostImpl* host_impl, bool result) override {
4053     EXPECT_TRUE(result);
4054     if (host_impl->active_tree()->source_frame_number() >= 1) {
4055       // The commit changes layers so it should cause a swap.
4056       base::AutoLock lock(swap_promise_result_.lock);
4057       EXPECT_TRUE(swap_promise_result_.did_swap_called);
4058       EXPECT_FALSE(swap_promise_result_.did_not_swap_called);
4059       EXPECT_TRUE(swap_promise_result_.dtor_called);
4060       EndTest();
4061     }
4062   }
4063
4064   void AfterTest() override {}
4065
4066  private:
4067   scoped_refptr<Layer> layer_;
4068   TestSwapPromiseResult swap_promise_result_;
4069 };
4070
4071 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestKeepSwapPromise);
4072
4073 class LayerTreeHostTestBreakSwapPromiseForVisibility
4074     : public LayerTreeHostTest {
4075  protected:
4076   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
4077
4078   void SetVisibleFalseAndQueueSwapPromise() {
4079     layer_tree_host()->SetVisible(false);
4080     scoped_ptr<SwapPromise> swap_promise(
4081         new TestSwapPromise(&swap_promise_result_));
4082     layer_tree_host()->QueueSwapPromise(swap_promise.Pass());
4083   }
4084
4085   void ScheduledActionWillSendBeginMainFrame() override {
4086     MainThreadTaskRunner()->PostTask(
4087         FROM_HERE,
4088         base::Bind(&LayerTreeHostTestBreakSwapPromiseForVisibility
4089                        ::SetVisibleFalseAndQueueSwapPromise,
4090             base::Unretained(this)));
4091   }
4092
4093   void BeginMainFrameAbortedOnThread(LayerTreeHostImpl* host_impl,
4094                                      CommitEarlyOutReason reason) override {
4095     EndTest();
4096   }
4097
4098   void AfterTest() override {
4099     {
4100       base::AutoLock lock(swap_promise_result_.lock);
4101       EXPECT_FALSE(swap_promise_result_.did_activate_called);
4102       EXPECT_FALSE(swap_promise_result_.did_swap_called);
4103       EXPECT_TRUE(swap_promise_result_.did_not_swap_called);
4104       EXPECT_EQ(SwapPromise::COMMIT_FAILS, swap_promise_result_.reason);
4105       EXPECT_TRUE(swap_promise_result_.dtor_called);
4106     }
4107   }
4108
4109   TestSwapPromiseResult swap_promise_result_;
4110 };
4111
4112 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestBreakSwapPromiseForVisibility);
4113
4114 class LayerTreeHostTestBreakSwapPromiseForContext : public LayerTreeHostTest {
4115  protected:
4116   LayerTreeHostTestBreakSwapPromiseForContext()
4117       : output_surface_lost_triggered_(false) {
4118   }
4119
4120   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
4121
4122   void LoseOutputSurfaceAndQueueSwapPromise() {
4123     layer_tree_host()->DidLoseOutputSurface();
4124     scoped_ptr<SwapPromise> swap_promise(
4125         new TestSwapPromise(&swap_promise_result_));
4126     layer_tree_host()->QueueSwapPromise(swap_promise.Pass());
4127   }
4128
4129   void ScheduledActionWillSendBeginMainFrame() override {
4130     if (output_surface_lost_triggered_)
4131       return;
4132     output_surface_lost_triggered_ = true;
4133
4134     MainThreadTaskRunner()->PostTask(
4135         FROM_HERE,
4136         base::Bind(&LayerTreeHostTestBreakSwapPromiseForContext
4137                        ::LoseOutputSurfaceAndQueueSwapPromise,
4138                    base::Unretained(this)));
4139   }
4140
4141   void BeginMainFrameAbortedOnThread(LayerTreeHostImpl* host_impl,
4142                                      CommitEarlyOutReason reason) override {
4143     // This is needed so that the impl-thread state matches main-thread state.
4144     host_impl->DidLoseOutputSurface();
4145     EndTest();
4146   }
4147
4148   void AfterTest() override {
4149     {
4150       base::AutoLock lock(swap_promise_result_.lock);
4151       EXPECT_FALSE(swap_promise_result_.did_activate_called);
4152       EXPECT_FALSE(swap_promise_result_.did_swap_called);
4153       EXPECT_TRUE(swap_promise_result_.did_not_swap_called);
4154       EXPECT_EQ(SwapPromise::COMMIT_FAILS, swap_promise_result_.reason);
4155       EXPECT_TRUE(swap_promise_result_.dtor_called);
4156     }
4157   }
4158
4159   bool output_surface_lost_triggered_;
4160   TestSwapPromiseResult swap_promise_result_;
4161 };
4162
4163 SINGLE_AND_MULTI_THREAD_TEST_F(
4164     LayerTreeHostTestBreakSwapPromiseForContext);
4165
4166 class SimpleSwapPromiseMonitor : public SwapPromiseMonitor {
4167  public:
4168   SimpleSwapPromiseMonitor(LayerTreeHost* layer_tree_host,
4169                            LayerTreeHostImpl* layer_tree_host_impl,
4170                            int* set_needs_commit_count,
4171                            int* set_needs_redraw_count)
4172       : SwapPromiseMonitor(layer_tree_host, layer_tree_host_impl),
4173         set_needs_commit_count_(set_needs_commit_count) {}
4174
4175   ~SimpleSwapPromiseMonitor() override {}
4176
4177   void OnSetNeedsCommitOnMain() override { (*set_needs_commit_count_)++; }
4178
4179   void OnSetNeedsRedrawOnImpl() override {
4180     ADD_FAILURE() << "Should not get called on main thread.";
4181   }
4182
4183   void OnForwardScrollUpdateToMainThreadOnImpl() override {
4184     ADD_FAILURE() << "Should not get called on main thread.";
4185   }
4186
4187  private:
4188   int* set_needs_commit_count_;
4189 };
4190
4191 class LayerTreeHostTestSimpleSwapPromiseMonitor : public LayerTreeHostTest {
4192  public:
4193   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
4194
4195   void WillBeginMainFrame() override {
4196     if (TestEnded())
4197       return;
4198
4199     int set_needs_commit_count = 0;
4200     int set_needs_redraw_count = 0;
4201
4202     {
4203       scoped_ptr<SimpleSwapPromiseMonitor> swap_promise_monitor(
4204           new SimpleSwapPromiseMonitor(layer_tree_host(),
4205                                        NULL,
4206                                        &set_needs_commit_count,
4207                                        &set_needs_redraw_count));
4208       layer_tree_host()->SetNeedsCommit();
4209       EXPECT_EQ(1, set_needs_commit_count);
4210       EXPECT_EQ(0, set_needs_redraw_count);
4211     }
4212
4213     // Now the monitor is destroyed, SetNeedsCommit() is no longer being
4214     // monitored.
4215     layer_tree_host()->SetNeedsCommit();
4216     EXPECT_EQ(1, set_needs_commit_count);
4217     EXPECT_EQ(0, set_needs_redraw_count);
4218
4219     {
4220       scoped_ptr<SimpleSwapPromiseMonitor> swap_promise_monitor(
4221           new SimpleSwapPromiseMonitor(layer_tree_host(),
4222                                        NULL,
4223                                        &set_needs_commit_count,
4224                                        &set_needs_redraw_count));
4225       layer_tree_host()->SetNeedsUpdateLayers();
4226       EXPECT_EQ(2, set_needs_commit_count);
4227       EXPECT_EQ(0, set_needs_redraw_count);
4228     }
4229
4230     {
4231       scoped_ptr<SimpleSwapPromiseMonitor> swap_promise_monitor(
4232           new SimpleSwapPromiseMonitor(layer_tree_host(),
4233                                        NULL,
4234                                        &set_needs_commit_count,
4235                                        &set_needs_redraw_count));
4236       layer_tree_host()->SetNeedsAnimate();
4237       EXPECT_EQ(3, set_needs_commit_count);
4238       EXPECT_EQ(0, set_needs_redraw_count);
4239     }
4240
4241     EndTest();
4242   }
4243
4244   void AfterTest() override {}
4245 };
4246
4247 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestSimpleSwapPromiseMonitor);
4248
4249 class LayerTreeHostTestHighResRequiredAfterEvictingUIResources
4250     : public LayerTreeHostTest {
4251  protected:
4252   void SetupTree() override {
4253     LayerTreeHostTest::SetupTree();
4254     ui_resource_ = FakeScopedUIResource::Create(layer_tree_host());
4255   }
4256
4257   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
4258
4259   void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) override {
4260     host_impl->EvictAllUIResources();
4261     // Existence of evicted UI resources will trigger NEW_CONTENT_TAKES_PRIORITY
4262     // mode. Active tree should require high-res to draw after entering this
4263     // mode to ensure that high-res tiles are also required for a pending tree
4264     // to be activated.
4265     EXPECT_TRUE(host_impl->RequiresHighResToDraw());
4266   }
4267
4268   void DidCommit() override {
4269     int frame = layer_tree_host()->source_frame_number();
4270     switch (frame) {
4271       case 1:
4272         PostSetNeedsCommitToMainThread();
4273         break;
4274       case 2:
4275         ui_resource_ = nullptr;
4276         EndTest();
4277         break;
4278     }
4279   }
4280
4281   void AfterTest() override {}
4282
4283   FakeContentLayerClient client_;
4284   scoped_ptr<FakeScopedUIResource> ui_resource_;
4285 };
4286
4287 // This test is flaky, see http://crbug.com/386199
4288 // MULTI_THREAD_TEST_F(LayerTreeHostTestHighResRequiredAfterEvictingUIResources)
4289
4290 class LayerTreeHostTestGpuRasterizationDefault : public LayerTreeHostTest {
4291  protected:
4292   void InitializeSettings(LayerTreeSettings* settings) override {
4293     EXPECT_FALSE(settings->gpu_rasterization_enabled);
4294     EXPECT_FALSE(settings->gpu_rasterization_forced);
4295   }
4296
4297   void SetupTree() override {
4298     LayerTreeHostTest::SetupTree();
4299
4300     scoped_refptr<PictureLayer> layer =
4301         PictureLayer::Create(layer_settings(), &layer_client_);
4302     layer->SetBounds(gfx::Size(10, 10));
4303     layer->SetIsDrawable(true);
4304     layer_tree_host()->root_layer()->AddChild(layer);
4305   }
4306
4307   void BeginTest() override {
4308     Layer* root = layer_tree_host()->root_layer();
4309     PictureLayer* layer = static_cast<PictureLayer*>(root->child_at(0));
4310     RecordingSource* recording_source = layer->GetRecordingSourceForTesting();
4311
4312     // Verify default values.
4313     EXPECT_TRUE(root->IsSuitableForGpuRasterization());
4314     EXPECT_TRUE(layer->IsSuitableForGpuRasterization());
4315     EXPECT_TRUE(recording_source->IsSuitableForGpuRasterization());
4316     EXPECT_FALSE(layer_tree_host()->has_gpu_rasterization_trigger());
4317
4318     // Setting gpu rasterization trigger does not enable gpu rasterization.
4319     layer_tree_host()->SetHasGpuRasterizationTrigger(true);
4320     EXPECT_TRUE(layer_tree_host()->has_gpu_rasterization_trigger());
4321
4322     PostSetNeedsCommitToMainThread();
4323   }
4324
4325   void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) override {
4326     EXPECT_FALSE(host_impl->pending_tree()->use_gpu_rasterization());
4327     EXPECT_FALSE(host_impl->use_gpu_rasterization());
4328   }
4329
4330   void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) override {
4331     EXPECT_FALSE(host_impl->active_tree()->use_gpu_rasterization());
4332     EXPECT_FALSE(host_impl->use_gpu_rasterization());
4333     EndTest();
4334   }
4335
4336   void AfterTest() override {}
4337
4338   FakeContentLayerClient layer_client_;
4339 };
4340
4341 MULTI_THREAD_TEST_F(LayerTreeHostTestGpuRasterizationDefault);
4342
4343 class LayerTreeHostTestGpuRasterizationEnabled : public LayerTreeHostTest {
4344  protected:
4345   void InitializeSettings(LayerTreeSettings* settings) override {
4346     EXPECT_FALSE(settings->gpu_rasterization_enabled);
4347     settings->gpu_rasterization_enabled = true;
4348   }
4349
4350   void SetupTree() override {
4351     LayerTreeHostTest::SetupTree();
4352
4353     scoped_refptr<PictureLayer> layer =
4354         PictureLayer::Create(layer_settings(), &layer_client_);
4355     layer->SetBounds(gfx::Size(10, 10));
4356     layer->SetIsDrawable(true);
4357     layer_tree_host()->root_layer()->AddChild(layer);
4358   }
4359
4360   void BeginTest() override {
4361     Layer* root = layer_tree_host()->root_layer();
4362     PictureLayer* layer = static_cast<PictureLayer*>(root->child_at(0));
4363     RecordingSource* recording_source = layer->GetRecordingSourceForTesting();
4364
4365     // Verify default values.
4366     EXPECT_TRUE(root->IsSuitableForGpuRasterization());
4367     EXPECT_TRUE(layer->IsSuitableForGpuRasterization());
4368     EXPECT_TRUE(recording_source->IsSuitableForGpuRasterization());
4369     EXPECT_FALSE(layer_tree_host()->has_gpu_rasterization_trigger());
4370
4371     // Gpu rasterization trigger is relevant.
4372     layer_tree_host()->SetHasGpuRasterizationTrigger(true);
4373     EXPECT_TRUE(layer_tree_host()->has_gpu_rasterization_trigger());
4374
4375     // Content-based veto is relevant as well.
4376     recording_source->SetUnsuitableForGpuRasterizationForTesting();
4377     EXPECT_FALSE(recording_source->IsSuitableForGpuRasterization());
4378     EXPECT_FALSE(layer->IsSuitableForGpuRasterization());
4379     // Veto will take effect when layers are updated.
4380     // The results will be verified after commit is completed below.
4381     // Since we are manually marking picture pile as unsuitable,
4382     // make sure that the layer gets a chance to update.
4383     layer->SetNeedsDisplay();
4384     PostSetNeedsCommitToMainThread();
4385   }
4386
4387   void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) override {
4388     EXPECT_FALSE(host_impl->pending_tree()->use_gpu_rasterization());
4389     EXPECT_FALSE(host_impl->use_gpu_rasterization());
4390   }
4391
4392   void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) override {
4393     EXPECT_FALSE(host_impl->active_tree()->use_gpu_rasterization());
4394     EXPECT_FALSE(host_impl->use_gpu_rasterization());
4395     EndTest();
4396   }
4397
4398   void AfterTest() override {}
4399
4400   FakeContentLayerClient layer_client_;
4401 };
4402
4403 MULTI_THREAD_TEST_F(LayerTreeHostTestGpuRasterizationEnabled);
4404
4405 class LayerTreeHostTestGpuRasterizationForced : public LayerTreeHostTest {
4406  protected:
4407   void InitializeSettings(LayerTreeSettings* settings) override {
4408     EXPECT_FALSE(settings->gpu_rasterization_forced);
4409     settings->gpu_rasterization_forced = true;
4410   }
4411
4412   void SetupTree() override {
4413     LayerTreeHostTest::SetupTree();
4414
4415     scoped_refptr<FakePictureLayer> layer =
4416         FakePictureLayer::Create(layer_settings(), &layer_client_);
4417     layer->SetBounds(gfx::Size(10, 10));
4418     layer->SetIsDrawable(true);
4419     layer_tree_host()->root_layer()->AddChild(layer);
4420   }
4421
4422   void BeginTest() override {
4423     Layer* root = layer_tree_host()->root_layer();
4424     PictureLayer* layer = static_cast<PictureLayer*>(root->child_at(0));
4425     RecordingSource* recording_source = layer->GetRecordingSourceForTesting();
4426
4427     // Verify default values.
4428     EXPECT_TRUE(root->IsSuitableForGpuRasterization());
4429     EXPECT_TRUE(layer->IsSuitableForGpuRasterization());
4430     EXPECT_TRUE(recording_source->IsSuitableForGpuRasterization());
4431     EXPECT_FALSE(layer_tree_host()->has_gpu_rasterization_trigger());
4432
4433     // With gpu rasterization forced, gpu rasterization trigger is irrelevant.
4434     layer_tree_host()->SetHasGpuRasterizationTrigger(true);
4435     EXPECT_TRUE(layer_tree_host()->has_gpu_rasterization_trigger());
4436
4437     // Content-based veto is irrelevant as well.
4438     recording_source->SetUnsuitableForGpuRasterizationForTesting();
4439     EXPECT_FALSE(recording_source->IsSuitableForGpuRasterization());
4440     EXPECT_FALSE(layer->IsSuitableForGpuRasterization());
4441     // Veto will take effect when layers are updated.
4442     // The results will be verified after commit is completed below.
4443     // Since we are manually marking picture pile as unsuitable,
4444     // make sure that the layer gets a chance to update.
4445     layer->SetNeedsDisplay();
4446     PostSetNeedsCommitToMainThread();
4447   }
4448
4449   void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) override {
4450     EXPECT_TRUE(host_impl->sync_tree()->use_gpu_rasterization());
4451     EXPECT_TRUE(host_impl->use_gpu_rasterization());
4452   }
4453
4454   void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) override {
4455     EXPECT_TRUE(host_impl->active_tree()->use_gpu_rasterization());
4456     EXPECT_TRUE(host_impl->use_gpu_rasterization());
4457     EndTest();
4458   }
4459
4460   void AfterTest() override {}
4461
4462   FakeContentLayerClient layer_client_;
4463 };
4464
4465 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestGpuRasterizationForced);
4466
4467 class LayerTreeHostTestContinuousPainting : public LayerTreeHostTest {
4468  public:
4469   LayerTreeHostTestContinuousPainting()
4470       : num_commits_(0), num_draws_(0), bounds_(20, 20), child_layer_(NULL) {}
4471
4472  protected:
4473   enum { kExpectedNumCommits = 10 };
4474
4475   void SetupTree() override {
4476     scoped_refptr<Layer> root_layer = Layer::Create(layer_settings());
4477     root_layer->SetBounds(bounds_);
4478     root_layer->CreateRenderSurface();
4479
4480     child_layer_ = FakePictureLayer::Create(layer_settings(), &client_);
4481     child_layer_->SetBounds(bounds_);
4482     child_layer_->SetIsDrawable(true);
4483     root_layer->AddChild(child_layer_);
4484
4485     layer_tree_host()->SetRootLayer(root_layer);
4486     layer_tree_host()->SetViewportSize(bounds_);
4487     LayerTreeHostTest::SetupTree();
4488   }
4489
4490   void BeginTest() override {
4491     MainThreadTaskRunner()->PostTask(
4492         FROM_HERE,
4493         base::Bind(
4494             &LayerTreeHostTestContinuousPainting::EnableContinuousPainting,
4495             base::Unretained(this)));
4496     // Wait 50x longer than expected.
4497     double milliseconds_per_frame =
4498         1000.0 / layer_tree_host()->settings().renderer_settings.refresh_rate;
4499     MainThreadTaskRunner()->PostDelayedTask(
4500         FROM_HERE,
4501         base::Bind(
4502             &LayerTreeHostTestContinuousPainting::DisableContinuousPainting,
4503             base::Unretained(this)),
4504         base::TimeDelta::FromMilliseconds(50 * kExpectedNumCommits *
4505                                           milliseconds_per_frame));
4506   }
4507
4508   void BeginMainFrame(const BeginFrameArgs& args) override {
4509     child_layer_->SetNeedsDisplay();
4510   }
4511
4512   void AfterTest() override {
4513     EXPECT_LE(kExpectedNumCommits, num_commits_);
4514     EXPECT_LE(kExpectedNumCommits, num_draws_);
4515     EXPECT_LE(kExpectedNumCommits, child_layer_->update_count());
4516   }
4517
4518   void DrawLayersOnThread(LayerTreeHostImpl* impl) override {
4519     if (++num_draws_ == kExpectedNumCommits)
4520       EndTest();
4521   }
4522
4523   void CommitCompleteOnThread(LayerTreeHostImpl* impl) override {
4524     ++num_commits_;
4525   }
4526
4527  private:
4528   void EnableContinuousPainting() {
4529     LayerTreeDebugState debug_state = layer_tree_host()->debug_state();
4530     debug_state.continuous_painting = true;
4531     layer_tree_host()->SetDebugState(debug_state);
4532   }
4533
4534   void DisableContinuousPainting() {
4535     LayerTreeDebugState debug_state = layer_tree_host()->debug_state();
4536     debug_state.continuous_painting = false;
4537     layer_tree_host()->SetDebugState(debug_state);
4538     EndTest();
4539   }
4540
4541   int num_commits_;
4542   int num_draws_;
4543   const gfx::Size bounds_;
4544   FakeContentLayerClient client_;
4545   scoped_refptr<FakePictureLayer> child_layer_;
4546 };
4547
4548 MULTI_THREAD_TEST_F(LayerTreeHostTestContinuousPainting);
4549
4550 class LayerTreeHostTestWillBeginImplFrameHasDidFinishImplFrame
4551     : public LayerTreeHostTest {
4552  public:
4553   enum { kExpectedNumImplFrames = 10 };
4554
4555   LayerTreeHostTestWillBeginImplFrameHasDidFinishImplFrame()
4556       : will_begin_impl_frame_count_(0), did_finish_impl_frame_count_(0) {}
4557
4558   void BeginTest() override {
4559     // Kick off the test with a commit.
4560     PostSetNeedsCommitToMainThread();
4561   }
4562
4563   void WillBeginImplFrameOnThread(LayerTreeHostImpl* host_impl,
4564                                   const BeginFrameArgs& args) override {
4565     EXPECT_EQ(will_begin_impl_frame_count_, did_finish_impl_frame_count_);
4566     EXPECT_FALSE(TestEnded());
4567     will_begin_impl_frame_count_++;
4568   }
4569
4570   void DidFinishImplFrameOnThread(LayerTreeHostImpl* host_impl) override {
4571     did_finish_impl_frame_count_++;
4572     EXPECT_EQ(will_begin_impl_frame_count_, did_finish_impl_frame_count_);
4573
4574     // Request a number of commits to cause multiple impl frames. We expect to
4575     // get one more impl frames than the number of commits requested because
4576     // after a commit it takes one frame to become idle.
4577     if (did_finish_impl_frame_count_ < kExpectedNumImplFrames - 1)
4578       PostSetNeedsCommitToMainThread();
4579   }
4580
4581   void SendBeginMainFrameNotExpectedSoon() override { EndTest(); }
4582
4583   void AfterTest() override {
4584     EXPECT_GT(will_begin_impl_frame_count_, 0);
4585     EXPECT_GT(did_finish_impl_frame_count_, 0);
4586     EXPECT_EQ(will_begin_impl_frame_count_, did_finish_impl_frame_count_);
4587
4588     // TODO(mithro): Figure out why the multithread version of this test
4589     // sometimes has one more frame then expected. Possibly related to
4590     // http://crbug.com/443185
4591     if (!HasImplThread()) {
4592       EXPECT_EQ(will_begin_impl_frame_count_, kExpectedNumImplFrames);
4593       EXPECT_EQ(did_finish_impl_frame_count_, kExpectedNumImplFrames);
4594     }
4595   }
4596
4597  private:
4598   int will_begin_impl_frame_count_;
4599   int did_finish_impl_frame_count_;
4600 };
4601
4602 SINGLE_AND_MULTI_THREAD_TEST_F(
4603     LayerTreeHostTestWillBeginImplFrameHasDidFinishImplFrame);
4604
4605 class LayerTreeHostTestSendBeginFramesToChildren : public LayerTreeHostTest {
4606  public:
4607   LayerTreeHostTestSendBeginFramesToChildren()
4608       : begin_frame_sent_to_children_(false) {
4609   }
4610
4611   void BeginTest() override {
4612     // Kick off the test with a commit.
4613     PostSetNeedsCommitToMainThread();
4614   }
4615
4616   void SendBeginFramesToChildren(const BeginFrameArgs& args) override {
4617     begin_frame_sent_to_children_ = true;
4618     EndTest();
4619   }
4620
4621   void DidBeginMainFrame() override {
4622     // Children requested BeginFrames.
4623     layer_tree_host()->SetChildrenNeedBeginFrames(true);
4624   }
4625
4626   void AfterTest() override {
4627     // Ensure that BeginFrame message is sent to children during parent
4628     // scheduler handles its BeginFrame.
4629     EXPECT_TRUE(begin_frame_sent_to_children_);
4630   }
4631
4632  private:
4633   bool begin_frame_sent_to_children_;
4634 };
4635
4636 SINGLE_THREAD_TEST_F(LayerTreeHostTestSendBeginFramesToChildren);
4637
4638 class LayerTreeHostTestSendBeginFramesToChildrenWithExternalBFS
4639     : public LayerTreeHostTest {
4640  public:
4641   LayerTreeHostTestSendBeginFramesToChildrenWithExternalBFS()
4642       : begin_frame_sent_to_children_(false) {
4643   }
4644
4645   void InitializeSettings(LayerTreeSettings* settings) override {
4646     settings->use_external_begin_frame_source = true;
4647   }
4648
4649   void BeginTest() override {
4650     // Kick off the test with a commit.
4651     PostSetNeedsCommitToMainThread();
4652   }
4653
4654   void SendBeginFramesToChildren(const BeginFrameArgs& args) override {
4655     begin_frame_sent_to_children_ = true;
4656     EndTest();
4657   }
4658
4659   void DidBeginMainFrame() override {
4660     // Children requested BeginFrames.
4661     layer_tree_host()->SetChildrenNeedBeginFrames(true);
4662   }
4663
4664   void AfterTest() override {
4665     // Ensure that BeginFrame message is sent to children during parent
4666     // scheduler handles its BeginFrame.
4667     EXPECT_TRUE(begin_frame_sent_to_children_);
4668   }
4669
4670  private:
4671   bool begin_frame_sent_to_children_;
4672 };
4673
4674 SINGLE_THREAD_TEST_F(LayerTreeHostTestSendBeginFramesToChildrenWithExternalBFS);
4675
4676 class LayerTreeHostTestActivateOnInvisible : public LayerTreeHostTest {
4677  public:
4678   LayerTreeHostTestActivateOnInvisible()
4679       : activation_count_(0), visible_(true) {}
4680
4681   void BeginTest() override {
4682     // Kick off the test with a commit.
4683     PostSetNeedsCommitToMainThread();
4684   }
4685
4686   void BeginCommitOnThread(LayerTreeHostImpl* host_impl) override {
4687     // Make sure we don't activate using the notify signal from tile manager.
4688     host_impl->BlockNotifyReadyToActivateForTesting(true);
4689   }
4690
4691   void DidCommit() override { layer_tree_host()->SetVisible(false); }
4692
4693   void DidSetVisibleOnImplTree(LayerTreeHostImpl* host_impl,
4694                                bool visible) override {
4695     visible_ = visible;
4696
4697     // Once invisible, we can go visible again.
4698     if (!visible) {
4699       PostSetVisibleToMainThread(true);
4700     } else {
4701       EXPECT_TRUE(host_impl->RequiresHighResToDraw());
4702       EndTest();
4703     }
4704   }
4705
4706   void DidActivateTreeOnThread(LayerTreeHostImpl* host_impl) override {
4707     ++activation_count_;
4708     EXPECT_FALSE(visible_);
4709   }
4710
4711   void AfterTest() override {
4712     // Ensure we activated even though the signal was blocked.
4713     EXPECT_EQ(1, activation_count_);
4714     EXPECT_TRUE(visible_);
4715   }
4716
4717  private:
4718   int activation_count_;
4719   bool visible_;
4720
4721   FakeContentLayerClient client_;
4722   scoped_refptr<FakePictureLayer> picture_layer_;
4723 };
4724
4725 // TODO(vmpstr): Enable with single thread impl-side painting.
4726 // This test blocks activation which is not supported for single thread mode.
4727 MULTI_THREAD_BLOCKNOTIFY_TEST_F(LayerTreeHostTestActivateOnInvisible);
4728
4729 // Do a synchronous composite and assert that the swap promise succeeds.
4730 class LayerTreeHostTestSynchronousCompositeSwapPromise
4731     : public LayerTreeHostTest {
4732  public:
4733   LayerTreeHostTestSynchronousCompositeSwapPromise() : commit_count_(0) {}
4734
4735   void InitializeSettings(LayerTreeSettings* settings) override {
4736     settings->single_thread_proxy_scheduler = false;
4737     settings->use_zero_copy = true;
4738     settings->use_one_copy = false;
4739   }
4740
4741   void BeginTest() override {
4742     // Successful composite.
4743     scoped_ptr<SwapPromise> swap_promise0(
4744         new TestSwapPromise(&swap_promise_result_[0]));
4745     layer_tree_host()->QueueSwapPromise(swap_promise0.Pass());
4746     layer_tree_host()->Composite(base::TimeTicks::Now());
4747
4748     // Fail to swap (no damage).
4749     scoped_ptr<SwapPromise> swap_promise1(
4750         new TestSwapPromise(&swap_promise_result_[1]));
4751     layer_tree_host()->QueueSwapPromise(swap_promise1.Pass());
4752     layer_tree_host()->SetNeedsCommit();
4753     layer_tree_host()->Composite(base::TimeTicks::Now());
4754
4755     // Fail to draw (not visible).
4756     scoped_ptr<SwapPromise> swap_promise2(
4757         new TestSwapPromise(&swap_promise_result_[2]));
4758     layer_tree_host()->QueueSwapPromise(swap_promise2.Pass());
4759     layer_tree_host()->SetNeedsDisplayOnAllLayers();
4760     layer_tree_host()->SetVisible(false);
4761     layer_tree_host()->Composite(base::TimeTicks::Now());
4762
4763     EndTest();
4764   }
4765
4766   void DidCommit() override {
4767     commit_count_++;
4768     ASSERT_LE(commit_count_, 3);
4769   }
4770
4771   void AfterTest() override {
4772     EXPECT_EQ(3, commit_count_);
4773
4774     // Initial swap promise should have succeded.
4775     {
4776       base::AutoLock lock(swap_promise_result_[0].lock);
4777       EXPECT_TRUE(swap_promise_result_[0].did_swap_called);
4778       EXPECT_FALSE(swap_promise_result_[0].did_not_swap_called);
4779       EXPECT_TRUE(swap_promise_result_[0].dtor_called);
4780     }
4781
4782     // Second swap promise fails to swap.
4783     {
4784       base::AutoLock lock(swap_promise_result_[1].lock);
4785       EXPECT_TRUE(swap_promise_result_[1].did_activate_called);
4786       EXPECT_FALSE(swap_promise_result_[1].did_swap_called);
4787       EXPECT_TRUE(swap_promise_result_[1].did_not_swap_called);
4788       EXPECT_EQ(SwapPromise::SWAP_FAILS, swap_promise_result_[1].reason);
4789       EXPECT_TRUE(swap_promise_result_[1].dtor_called);
4790     }
4791
4792     // Third swap promises also fails to swap (and draw).
4793     {
4794       base::AutoLock lock(swap_promise_result_[2].lock);
4795       EXPECT_TRUE(swap_promise_result_[2].did_activate_called);
4796       EXPECT_FALSE(swap_promise_result_[2].did_swap_called);
4797       EXPECT_TRUE(swap_promise_result_[2].did_not_swap_called);
4798       EXPECT_EQ(SwapPromise::SWAP_FAILS, swap_promise_result_[2].reason);
4799       EXPECT_TRUE(swap_promise_result_[2].dtor_called);
4800     }
4801   }
4802
4803   int commit_count_;
4804   TestSwapPromiseResult swap_promise_result_[3];
4805 };
4806
4807 SINGLE_THREAD_TEST_F(LayerTreeHostTestSynchronousCompositeSwapPromise);
4808
4809 // Make sure page scale and top control deltas are applied to the client even
4810 // when the LayerTreeHost doesn't have a root layer.
4811 class LayerTreeHostAcceptsDeltasFromImplWithoutRootLayer
4812     : public LayerTreeHostTest {
4813  public:
4814   LayerTreeHostAcceptsDeltasFromImplWithoutRootLayer()
4815       : deltas_sent_to_client_(false) {}
4816
4817   void BeginTest() override {
4818     layer_tree_host()->SetRootLayer(nullptr);
4819     info_.page_scale_delta = 3.14f;
4820     info_.top_controls_delta = 2.73f;
4821
4822     PostSetNeedsCommitToMainThread();
4823   }
4824
4825   void BeginMainFrame(const BeginFrameArgs& args) override {
4826     EXPECT_EQ(nullptr, layer_tree_host()->root_layer());
4827
4828     layer_tree_host()->ApplyScrollAndScale(&info_);
4829     EndTest();
4830   }
4831
4832   void ApplyViewportDeltas(const gfx::Vector2dF& inner,
4833                            const gfx::Vector2dF& outer,
4834                            const gfx::Vector2dF& elastic_overscroll_delta,
4835                            float scale_delta,
4836                            float top_controls_delta) override {
4837     EXPECT_EQ(info_.page_scale_delta, scale_delta);
4838     EXPECT_EQ(info_.top_controls_delta, top_controls_delta);
4839     deltas_sent_to_client_ = true;
4840   }
4841
4842   void AfterTest() override {
4843     EXPECT_TRUE(deltas_sent_to_client_);
4844   }
4845
4846   ScrollAndScaleSet info_;
4847   bool deltas_sent_to_client_;
4848 };
4849
4850 MULTI_THREAD_TEST_F(LayerTreeHostAcceptsDeltasFromImplWithoutRootLayer);
4851
4852 class LayerTreeHostTestCrispUpAfterPinchEnds : public LayerTreeHostTest {
4853  protected:
4854   LayerTreeHostTestCrispUpAfterPinchEnds()
4855       : playback_allowed_event_(true, true) {}
4856
4857   void SetupTree() override {
4858     frame_ = 1;
4859     posted_ = false;
4860     client_.set_fill_with_nonsolid_color(true);
4861
4862     scoped_refptr<Layer> root = Layer::Create(layer_settings());
4863     root->SetBounds(gfx::Size(500, 500));
4864
4865     scoped_refptr<Layer> pinch = Layer::Create(layer_settings());
4866     pinch->SetBounds(gfx::Size(500, 500));
4867     pinch->SetScrollClipLayerId(root->id());
4868     pinch->SetIsContainerForFixedPositionLayers(true);
4869     root->AddChild(pinch);
4870
4871     scoped_ptr<FakePicturePile> pile(
4872         new FakePicturePile(LayerTreeSettings().minimum_contents_scale,
4873                             LayerTreeSettings().default_tile_grid_size));
4874     pile->SetPlaybackAllowedEvent(&playback_allowed_event_);
4875     scoped_refptr<FakePictureLayer> layer =
4876         FakePictureLayer::CreateWithRecordingSource(layer_settings(), &client_,
4877                                                     pile.Pass());
4878     layer->SetBounds(gfx::Size(500, 500));
4879     layer->SetContentsOpaque(true);
4880     // Avoid LCD text on the layer so we don't cause extra commits when we
4881     // pinch.
4882     layer->disable_lcd_text();
4883     pinch->AddChild(layer);
4884
4885     layer_tree_host()->RegisterViewportLayers(NULL, root, pinch, pinch);
4886     layer_tree_host()->SetPageScaleFactorAndLimits(1.f, 1.f, 4.f);
4887     layer_tree_host()->SetRootLayer(root);
4888     LayerTreeHostTest::SetupTree();
4889   }
4890
4891   // Returns the delta scale of all quads in the frame's root pass from their
4892   // ideal, or 0 if they are not all the same.
4893   float FrameQuadScaleDeltaFromIdeal(LayerTreeHostImpl::FrameData* frame_data) {
4894     if (frame_data->has_no_damage)
4895       return 0.f;
4896     float frame_scale = 0.f;
4897     RenderPass* root_pass = frame_data->render_passes.back();
4898     for (const auto& draw_quad : root_pass->quad_list) {
4899       // Checkerboards mean an incomplete frame.
4900       if (draw_quad->material != DrawQuad::TILED_CONTENT)
4901         return 0.f;
4902       const TileDrawQuad* quad = TileDrawQuad::MaterialCast(draw_quad);
4903       float quad_scale =
4904           quad->tex_coord_rect.width() / static_cast<float>(quad->rect.width());
4905       float transform_scale = SkMScalarToFloat(
4906           quad->shared_quad_state->quad_to_target_transform.matrix().get(0, 0));
4907       float scale = quad_scale / transform_scale;
4908       if (frame_scale != 0.f && frame_scale != scale)
4909         return 0.f;
4910       frame_scale = scale;
4911     }
4912     return frame_scale;
4913   }
4914
4915   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
4916
4917   DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
4918                                    LayerTreeHostImpl::FrameData* frame_data,
4919                                    DrawResult draw_result) override {
4920     float quad_scale_delta = FrameQuadScaleDeltaFromIdeal(frame_data);
4921     switch (frame_) {
4922       case 1:
4923         // Drew at page scale 1 before any pinching.
4924         EXPECT_EQ(1.f, host_impl->active_tree()->current_page_scale_factor());
4925         EXPECT_EQ(1.f, quad_scale_delta);
4926         PostNextAfterDraw(host_impl);
4927         break;
4928       case 2:
4929         if (quad_scale_delta != 1.f)
4930           break;
4931         // Drew at page scale 1.5 after pinching in.
4932         EXPECT_EQ(1.5f, host_impl->active_tree()->current_page_scale_factor());
4933         EXPECT_EQ(1.f, quad_scale_delta);
4934         PostNextAfterDraw(host_impl);
4935         break;
4936       case 3:
4937         // By pinching out, we will create a new tiling and raster it. This may
4938         // cause some additional draws, though we should still be drawing with
4939         // the old 1.5 tiling.
4940         if (frame_data->has_no_damage)
4941           break;
4942         // Drew at page scale 1 with the 1.5 tiling while pinching out.
4943         EXPECT_EQ(1.f, host_impl->active_tree()->current_page_scale_factor());
4944         EXPECT_EQ(1.5f, quad_scale_delta);
4945         // We don't PostNextAfterDraw here, instead we wait for the new tiling
4946         // to finish rastering so we don't get any noise in further steps.
4947         break;
4948       case 4:
4949         // Drew at page scale 1 with the 1.5 tiling after pinching out completed
4950         // while waiting for texture uploads to complete.
4951         EXPECT_EQ(1.f, host_impl->active_tree()->current_page_scale_factor());
4952         // This frame will not have any damage, since it's actually the same as
4953         // the last frame, and should contain no incomplete tiles. We just want
4954         // to make sure we drew here at least once after the pinch ended to be
4955         // sure that drawing after pinch doesn't leave us at the wrong scale
4956         EXPECT_TRUE(frame_data->has_no_damage);
4957         PostNextAfterDraw(host_impl);
4958         break;
4959       case 5:
4960         if (quad_scale_delta != 1.f)
4961           break;
4962         // Drew at scale 1 after texture uploads are done.
4963         EXPECT_EQ(1.f, host_impl->active_tree()->current_page_scale_factor());
4964         EXPECT_EQ(1.f, quad_scale_delta);
4965         EndTest();
4966         break;
4967     }
4968     return draw_result;
4969   }
4970
4971   void PostNextAfterDraw(LayerTreeHostImpl* host_impl) {
4972     if (posted_)
4973       return;
4974     posted_ = true;
4975     ImplThreadTaskRunner()->PostDelayedTask(
4976         FROM_HERE, base::Bind(&LayerTreeHostTestCrispUpAfterPinchEnds::Next,
4977                               base::Unretained(this), host_impl),
4978         // Use a delay to allow raster/upload to happen in between frames. This
4979         // should cause flakiness if we fail to block raster/upload when
4980         // desired.
4981         base::TimeDelta::FromMilliseconds(16 * 4));
4982   }
4983
4984   void Next(LayerTreeHostImpl* host_impl) {
4985     ++frame_;
4986     posted_ = false;
4987     switch (frame_) {
4988       case 2:
4989         // Pinch zoom in.
4990         host_impl->PinchGestureBegin();
4991         host_impl->PinchGestureUpdate(1.5f, gfx::Point(100, 100));
4992         host_impl->PinchGestureEnd();
4993         break;
4994       case 3:
4995         // Pinch zoom back to 1.f but don't end it.
4996         host_impl->PinchGestureBegin();
4997         host_impl->PinchGestureUpdate(1.f / 1.5f, gfx::Point(100, 100));
4998         break;
4999       case 4:
5000         // End the pinch, but delay tile production.
5001         playback_allowed_event_.Reset();
5002         host_impl->PinchGestureEnd();
5003         break;
5004       case 5:
5005         // Let tiles complete.
5006         playback_allowed_event_.Signal();
5007         break;
5008     }
5009   }
5010
5011   void NotifyTileStateChangedOnThread(LayerTreeHostImpl* host_impl,
5012                                       const Tile* tile) override {
5013     if (frame_ == 3) {
5014       // On frame 3, we will have a lower res tile complete for the pinch-out
5015       // gesture even though it's not displayed. We wait for it here to prevent
5016       // flakiness.
5017       EXPECT_EQ(0.75f, tile->contents_scale());
5018       PostNextAfterDraw(host_impl);
5019     }
5020     // On frame_ == 4, we are preventing texture uploads from completing,
5021     // so this verifies they are not completing before frame_ == 5.
5022     // Flaky failures here indicate we're failing to prevent uploads from
5023     // completing.
5024     EXPECT_NE(4, frame_) << tile->contents_scale();
5025   }
5026
5027   void AfterTest() override {}
5028
5029   FakeContentLayerClient client_;
5030   int frame_;
5031   bool posted_;
5032   base::WaitableEvent playback_allowed_event_;
5033 };
5034
5035 // This test does pinching on the impl side which is not supported in single
5036 // thread.
5037 MULTI_THREAD_TEST_F(LayerTreeHostTestCrispUpAfterPinchEnds);
5038
5039 class LayerTreeHostTestCrispUpAfterPinchEndsWithOneCopy
5040     : public LayerTreeHostTestCrispUpAfterPinchEnds {
5041  protected:
5042   void InitializeSettings(LayerTreeSettings* settings) override {
5043     settings->use_one_copy = true;
5044   }
5045
5046   scoped_ptr<FakeOutputSurface> CreateFakeOutputSurface() override {
5047     scoped_ptr<TestWebGraphicsContext3D> context3d =
5048         TestWebGraphicsContext3D::Create();
5049     context3d->set_support_image(true);
5050     context3d->set_support_sync_query(true);
5051 #if defined(OS_MACOSX)
5052     context3d->set_support_texture_rectangle(true);
5053 #endif
5054
5055     if (delegating_renderer())
5056       return FakeOutputSurface::CreateDelegating3d(context3d.Pass());
5057     else
5058       return FakeOutputSurface::Create3d(context3d.Pass());
5059   }
5060 };
5061
5062 // This test does pinching on the impl side which is not supported in single
5063 // thread.
5064 MULTI_THREAD_TEST_F(LayerTreeHostTestCrispUpAfterPinchEndsWithOneCopy);
5065
5066 class RasterizeWithGpuRasterizationCreatesResources : public LayerTreeHostTest {
5067  protected:
5068   RasterizeWithGpuRasterizationCreatesResources() {}
5069
5070   void InitializeSettings(LayerTreeSettings* settings) override {
5071     settings->gpu_rasterization_forced = true;
5072   }
5073
5074   void SetupTree() override {
5075     client_.set_fill_with_nonsolid_color(true);
5076
5077     scoped_refptr<Layer> root = Layer::Create(layer_settings());
5078     root->SetBounds(gfx::Size(500, 500));
5079
5080     scoped_ptr<FakePicturePile> pile(
5081         new FakePicturePile(LayerTreeSettings().minimum_contents_scale,
5082                             LayerTreeSettings().default_tile_grid_size));
5083     scoped_refptr<FakePictureLayer> layer =
5084         FakePictureLayer::CreateWithRecordingSource(layer_settings(), &client_,
5085                                                     pile.Pass());
5086     layer->SetBounds(gfx::Size(500, 500));
5087     layer->SetContentsOpaque(true);
5088     root->AddChild(layer);
5089
5090     layer_tree_host()->SetRootLayer(root);
5091     LayerTreeHostTest::SetupTree();
5092   }
5093
5094   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
5095
5096   DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
5097                                    LayerTreeHostImpl::FrameData* frame_data,
5098                                    DrawResult draw_result) override {
5099     EXPECT_NE(0u, host_impl->resource_provider()->num_resources());
5100     EndTest();
5101     return draw_result;
5102   }
5103   void AfterTest() override {}
5104
5105   FakeContentLayerClient client_;
5106 };
5107
5108 SINGLE_AND_MULTI_THREAD_TEST_F(RasterizeWithGpuRasterizationCreatesResources);
5109
5110 class GpuRasterizationRasterizesBorderTiles : public LayerTreeHostTest {
5111  protected:
5112   GpuRasterizationRasterizesBorderTiles() : viewport_size_(1024, 2048) {}
5113
5114   void InitializeSettings(LayerTreeSettings* settings) override {
5115     settings->gpu_rasterization_enabled = true;
5116     settings->gpu_rasterization_forced = true;
5117   }
5118
5119   void SetupTree() override {
5120     client_.set_fill_with_nonsolid_color(true);
5121
5122     scoped_ptr<FakePicturePile> pile(
5123         new FakePicturePile(LayerTreeSettings().minimum_contents_scale,
5124                             LayerTreeSettings().default_tile_grid_size));
5125     scoped_refptr<FakePictureLayer> root =
5126         FakePictureLayer::CreateWithRecordingSource(layer_settings(), &client_,
5127                                                     pile.Pass());
5128     root->SetBounds(gfx::Size(10000, 10000));
5129     root->SetContentsOpaque(true);
5130
5131     layer_tree_host()->SetRootLayer(root);
5132     LayerTreeHostTest::SetupTree();
5133     layer_tree_host()->SetViewportSize(viewport_size_);
5134   }
5135
5136   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
5137
5138   DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
5139                                    LayerTreeHostImpl::FrameData* frame_data,
5140                                    DrawResult draw_result) override {
5141     EXPECT_EQ(10u, host_impl->resource_provider()->num_resources());
5142     EndTest();
5143     return draw_result;
5144   }
5145
5146   void AfterTest() override {}
5147
5148  private:
5149   FakeContentLayerClient client_;
5150   gfx::Size viewport_size_;
5151 };
5152
5153 SINGLE_AND_MULTI_THREAD_TEST_F(GpuRasterizationRasterizesBorderTiles);
5154
5155 class LayerTreeHostTestContinuousDrawWhenCreatingVisibleTiles
5156     : public LayerTreeHostTest {
5157  protected:
5158   LayerTreeHostTestContinuousDrawWhenCreatingVisibleTiles()
5159       : playback_allowed_event_(true, true) {}
5160
5161   void SetupTree() override {
5162     step_ = 1;
5163     continuous_draws_ = 0;
5164     client_.set_fill_with_nonsolid_color(true);
5165
5166     scoped_refptr<Layer> root = Layer::Create(layer_settings());
5167     root->SetBounds(gfx::Size(500, 500));
5168
5169     scoped_refptr<Layer> pinch = Layer::Create(layer_settings());
5170     pinch->SetBounds(gfx::Size(500, 500));
5171     pinch->SetScrollClipLayerId(root->id());
5172     pinch->SetIsContainerForFixedPositionLayers(true);
5173     root->AddChild(pinch);
5174
5175     scoped_ptr<FakePicturePile> pile(
5176         new FakePicturePile(LayerTreeSettings().minimum_contents_scale,
5177                             LayerTreeSettings().default_tile_grid_size));
5178     pile->SetPlaybackAllowedEvent(&playback_allowed_event_);
5179     scoped_refptr<FakePictureLayer> layer =
5180         FakePictureLayer::CreateWithRecordingSource(layer_settings(), &client_,
5181                                                     pile.Pass());
5182     layer->SetBounds(gfx::Size(500, 500));
5183     layer->SetContentsOpaque(true);
5184     // Avoid LCD text on the layer so we don't cause extra commits when we
5185     // pinch.
5186     layer->disable_lcd_text();
5187     pinch->AddChild(layer);
5188
5189     layer_tree_host()->RegisterViewportLayers(NULL, root, pinch, pinch);
5190     layer_tree_host()->SetPageScaleFactorAndLimits(1.f, 1.f, 4.f);
5191     layer_tree_host()->SetRootLayer(root);
5192     LayerTreeHostTest::SetupTree();
5193   }
5194
5195   // Returns the delta scale of all quads in the frame's root pass from their
5196   // ideal, or 0 if they are not all the same.
5197   float FrameQuadScaleDeltaFromIdeal(LayerTreeHostImpl::FrameData* frame_data) {
5198     if (frame_data->has_no_damage)
5199       return 0.f;
5200     float frame_scale = 0.f;
5201     RenderPass* root_pass = frame_data->render_passes.back();
5202     for (const auto& draw_quad : root_pass->quad_list) {
5203       const TileDrawQuad* quad = TileDrawQuad::MaterialCast(draw_quad);
5204       float quad_scale =
5205           quad->tex_coord_rect.width() / static_cast<float>(quad->rect.width());
5206       float transform_scale = SkMScalarToFloat(
5207           quad->shared_quad_state->quad_to_target_transform.matrix().get(0, 0));
5208       float scale = quad_scale / transform_scale;
5209       if (frame_scale != 0.f && frame_scale != scale)
5210         return 0.f;
5211       frame_scale = scale;
5212     }
5213     return frame_scale;
5214   }
5215
5216   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
5217
5218   DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
5219                                    LayerTreeHostImpl::FrameData* frame_data,
5220                                    DrawResult draw_result) override {
5221     float quad_scale_delta = FrameQuadScaleDeltaFromIdeal(frame_data);
5222     switch (step_) {
5223       case 1:
5224         // Drew at scale 1 before any pinching.
5225         EXPECT_EQ(1.f, host_impl->active_tree()->current_page_scale_factor());
5226         EXPECT_EQ(1.f, quad_scale_delta);
5227         break;
5228       case 2:
5229         if (quad_scale_delta != 1.f / 1.5f)
5230           break;
5231         // Drew at scale 1 still though the ideal is 1.5.
5232         EXPECT_EQ(1.5f, host_impl->active_tree()->current_page_scale_factor());
5233         EXPECT_EQ(1.f / 1.5f, quad_scale_delta);
5234         break;
5235       case 3:
5236         // Continuous draws are attempted.
5237         EXPECT_EQ(1.5f, host_impl->active_tree()->current_page_scale_factor());
5238         if (!frame_data->has_no_damage)
5239           EXPECT_EQ(1.f / 1.5f, quad_scale_delta);
5240         break;
5241       case 4:
5242         if (quad_scale_delta != 1.f)
5243           break;
5244         // Drew at scale 1.5 when all the tiles completed.
5245         EXPECT_EQ(1.5f, host_impl->active_tree()->current_page_scale_factor());
5246         EXPECT_EQ(1.f, quad_scale_delta);
5247         break;
5248       case 5:
5249         // TODO(danakj): We get more draws before the NotifyReadyToDraw
5250         // because it is asynchronous from the previous draw and happens late.
5251         break;
5252       case 6:
5253         // NotifyReadyToDraw happened. If we were already inside a frame, we may
5254         // try to draw once more.
5255         break;
5256       case 7:
5257         NOTREACHED() << "No draws should happen once we have a complete frame.";
5258         break;
5259     }
5260     return draw_result;
5261   }
5262
5263   void DrawLayersOnThread(LayerTreeHostImpl* host_impl) override {
5264     switch (step_) {
5265       case 1:
5266         // Delay tile production.
5267         playback_allowed_event_.Reset();
5268         // Pinch zoom in to cause new tiles to be required.
5269         host_impl->PinchGestureBegin();
5270         host_impl->PinchGestureUpdate(1.5f, gfx::Point(100, 100));
5271         host_impl->PinchGestureEnd();
5272         ++step_;
5273         break;
5274       case 2:
5275         ++step_;
5276         break;
5277       case 3:
5278         // We should continue to try draw while there are incomplete visible
5279         // tiles.
5280         if (++continuous_draws_ > 5) {
5281           // Allow the tiles to complete.
5282           playback_allowed_event_.Signal();
5283           ++step_;
5284         }
5285         break;
5286       case 4:
5287         ++step_;
5288         break;
5289       case 5:
5290         // Waiting for NotifyReadyToDraw.
5291         break;
5292       case 6:
5293         // NotifyReadyToDraw happened.
5294         ++step_;
5295         break;
5296     }
5297   }
5298
5299   void NotifyReadyToDrawOnThread(LayerTreeHostImpl* host_impl) override {
5300     if (step_ == 5) {
5301       ++step_;
5302       // NotifyReadyToDraw has happened, we may draw once more, but should not
5303       // get any more draws after that. End the test after a timeout to watch
5304       // for any extraneous draws.
5305       // TODO(brianderson): We could remove this delay and instead wait until
5306       // the BeginFrameSource decides it doesn't need to send frames anymore,
5307       // or test that it already doesn't here.
5308       EndTestAfterDelayMs(16 * 4);
5309     }
5310   }
5311
5312   void NotifyTileStateChangedOnThread(LayerTreeHostImpl* host_impl,
5313                                       const Tile* tile) override {
5314     // On step_ == 2, we are preventing texture uploads from completing,
5315     // so this verifies they are not completing before step_ == 3.
5316     // Flaky failures here indicate we're failing to prevent uploads from
5317     // completing.
5318     EXPECT_NE(2, step_);
5319   }
5320
5321   void AfterTest() override { EXPECT_GT(continuous_draws_, 5); }
5322
5323   FakeContentLayerClient client_;
5324   int step_;
5325   int continuous_draws_;
5326   base::WaitableEvent playback_allowed_event_;
5327 };
5328
5329 MULTI_THREAD_TEST_F(LayerTreeHostTestContinuousDrawWhenCreatingVisibleTiles);
5330
5331 class LayerTreeHostTestOneActivatePerPrepareTiles : public LayerTreeHostTest {
5332  public:
5333   LayerTreeHostTestOneActivatePerPrepareTiles()
5334       : notify_ready_to_activate_count_(0u),
5335         scheduled_prepare_tiles_count_(0) {}
5336
5337   void SetupTree() override {
5338     client_.set_fill_with_nonsolid_color(true);
5339     scoped_refptr<FakePictureLayer> root_layer =
5340         FakePictureLayer::Create(layer_settings(), &client_);
5341     root_layer->SetBounds(gfx::Size(1500, 1500));
5342     root_layer->SetIsDrawable(true);
5343
5344     layer_tree_host()->SetRootLayer(root_layer);
5345     LayerTreeHostTest::SetupTree();
5346   }
5347
5348   void BeginTest() override {
5349     layer_tree_host()->SetViewportSize(gfx::Size(16, 16));
5350     PostSetNeedsCommitToMainThread();
5351   }
5352
5353   void InitializedRendererOnThread(LayerTreeHostImpl* host_impl,
5354                                    bool success) override {
5355     ASSERT_TRUE(success);
5356     host_impl->tile_manager()->SetScheduledRasterTaskLimitForTesting(1);
5357   }
5358
5359   void NotifyReadyToActivateOnThread(LayerTreeHostImpl* impl) override {
5360     ++notify_ready_to_activate_count_;
5361     EndTestAfterDelayMs(100);
5362   }
5363
5364   void ScheduledActionPrepareTiles() override {
5365     ++scheduled_prepare_tiles_count_;
5366   }
5367
5368   void AfterTest() override {
5369     // Expect at most a notification for each scheduled prepare tiles, plus one
5370     // for the initial commit (which doesn't go through scheduled actions).
5371     // The reason this is not an equality is because depending on timing, we
5372     // might get a prepare tiles but not yet get a notification that we're
5373     // ready to activate. The intent of a test is to ensure that we don't
5374     // get more than one notification per prepare tiles, so this is OK.
5375     EXPECT_LE(notify_ready_to_activate_count_,
5376               1u + scheduled_prepare_tiles_count_);
5377   }
5378
5379  protected:
5380   FakeContentLayerClient client_;
5381   size_t notify_ready_to_activate_count_;
5382   size_t scheduled_prepare_tiles_count_;
5383 };
5384
5385 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestOneActivatePerPrepareTiles);
5386
5387 class LayerTreeHostTestFrameTimingRequestsSaveTimestamps
5388     : public LayerTreeHostTest {
5389  public:
5390   LayerTreeHostTestFrameTimingRequestsSaveTimestamps()
5391       : check_results_on_commit_(false) {}
5392
5393   void SetupTree() override {
5394     scoped_refptr<FakePictureLayer> root_layer =
5395         FakePictureLayer::Create(layer_settings(), &client_);
5396     root_layer->SetBounds(gfx::Size(200, 200));
5397     root_layer->SetIsDrawable(true);
5398
5399     scoped_refptr<FakePictureLayer> child_layer =
5400         FakePictureLayer::Create(layer_settings(), &client_);
5401     child_layer->SetBounds(gfx::Size(1500, 1500));
5402     child_layer->SetIsDrawable(true);
5403
5404     std::vector<FrameTimingRequest> requests;
5405     requests.push_back(FrameTimingRequest(1, gfx::Rect(0, 0, 100, 100)));
5406     requests.push_back(FrameTimingRequest(2, gfx::Rect(300, 0, 100, 100)));
5407     child_layer->SetFrameTimingRequests(requests);
5408
5409     root_layer->AddChild(child_layer);
5410     layer_tree_host()->SetRootLayer(root_layer);
5411     LayerTreeHostTest::SetupTree();
5412   }
5413
5414   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
5415
5416   void BeginCommitOnThread(LayerTreeHostImpl* host_impl) override {
5417     if (!check_results_on_commit_)
5418       return;
5419
5420     // Since in reality, the events will be read by LayerTreeHost during commit,
5421     // we check the requests here to ensure that they are correct at the next
5422     // commit time (as opposed to checking in DrawLayers for instance).
5423     // TODO(vmpstr): Change this to read things from the main thread when this
5424     // information is propagated to the main thread (not yet implemented).
5425     FrameTimingTracker* tracker = host_impl->frame_timing_tracker();
5426
5427     // Check composite events.
5428     {
5429       scoped_ptr<FrameTimingTracker::CompositeTimingSet> timing_set =
5430           tracker->GroupCompositeCountsByRectId();
5431       EXPECT_EQ(1u, timing_set->size());
5432       auto rect_1_it = timing_set->find(1);
5433       EXPECT_TRUE(rect_1_it != timing_set->end());
5434       const auto& timing_events = rect_1_it->second;
5435       EXPECT_EQ(1u, timing_events.size());
5436       EXPECT_EQ(host_impl->active_tree()->source_frame_number(),
5437                 timing_events[0].frame_id);
5438       EXPECT_GT(timing_events[0].timestamp, base::TimeTicks());
5439     }
5440
5441     // Check main frame events.
5442     {
5443       scoped_ptr<FrameTimingTracker::MainFrameTimingSet> timing_set =
5444           tracker->GroupMainFrameCountsByRectId();
5445       EXPECT_EQ(2u, timing_set->size());
5446       auto rect_1_it = timing_set->find(1);
5447       EXPECT_TRUE(rect_1_it != timing_set->end());
5448       const auto& timing_events = rect_1_it->second;
5449       EXPECT_EQ(1u, timing_events.size());
5450       EXPECT_EQ(host_impl->active_tree()->source_frame_number(),
5451                 timing_events[0].frame_id);
5452       EXPECT_GT(timing_events[0].timestamp, base::TimeTicks());
5453       EXPECT_GT(timing_events[0].end_time, timing_events[0].timestamp);
5454     }
5455
5456     EndTest();
5457   }
5458
5459   void DrawLayersOnThread(LayerTreeHostImpl* host_impl) override {
5460     check_results_on_commit_ = true;
5461     PostSetNeedsCommitToMainThread();
5462   }
5463
5464   void AfterTest() override {}
5465
5466  private:
5467   FakeContentLayerClient client_;
5468   bool check_results_on_commit_;
5469 };
5470
5471 // Frame timing is not implemented in single thread proxy.
5472 MULTI_THREAD_TEST_F(LayerTreeHostTestFrameTimingRequestsSaveTimestamps);
5473
5474 class LayerTreeHostTestActivationCausesPrepareTiles : public LayerTreeHostTest {
5475  public:
5476   LayerTreeHostTestActivationCausesPrepareTiles()
5477       : scheduled_prepare_tiles_count_(0) {}
5478
5479   void SetupTree() override {
5480     client_.set_fill_with_nonsolid_color(true);
5481     scoped_refptr<FakePictureLayer> root_layer =
5482         FakePictureLayer::Create(layer_settings(), &client_);
5483     root_layer->SetBounds(gfx::Size(150, 150));
5484     root_layer->SetIsDrawable(true);
5485
5486     layer_tree_host()->SetRootLayer(root_layer);
5487     LayerTreeHostTest::SetupTree();
5488   }
5489
5490   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
5491
5492   void NotifyReadyToActivateOnThread(LayerTreeHostImpl* impl) override {
5493     // Ensure we've already activated.
5494     EXPECT_FALSE(impl->pending_tree());
5495
5496     // After activating, we either need to prepare tiles, or we've already
5497     // called a scheduled prepare tiles. This is done because activation might
5498     // cause us to have to memory available (old active tree is gone), so we
5499     // need to ensure we will get a PrepareTiles call.
5500     if (!impl->prepare_tiles_needed())
5501       EXPECT_GE(scheduled_prepare_tiles_count_, 1);
5502     EndTest();
5503   }
5504
5505   void ScheduledActionPrepareTiles() override {
5506     ++scheduled_prepare_tiles_count_;
5507   }
5508
5509   void AfterTest() override {}
5510
5511  protected:
5512   FakeContentLayerClient client_;
5513   int scheduled_prepare_tiles_count_;
5514 };
5515
5516 // This test is testing activation from a pending tree and doesn't make sense
5517 // with single thread commit-to-active.
5518 MULTI_THREAD_TEST_F(LayerTreeHostTestActivationCausesPrepareTiles);
5519
5520 // This tests an assertion that DidCommit and WillCommit happen in the same
5521 // stack frame with no tasks that run between them.  Various embedders of
5522 // cc depend on this logic.  ui::Compositor holds a compositor lock between
5523 // these events and the inspector timeline wants begin/end CompositeLayers
5524 // to be properly nested with other begin/end events.
5525 class LayerTreeHostTestNoTasksBetweenWillAndDidCommit
5526     : public LayerTreeHostTest {
5527  public:
5528   LayerTreeHostTestNoTasksBetweenWillAndDidCommit() : did_commit_(false) {}
5529
5530   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
5531
5532   void WillCommit() override {
5533     MainThreadTaskRunner()->PostTask(
5534         FROM_HERE, base::Bind(&LayerTreeHostTestNoTasksBetweenWillAndDidCommit::
5535                                   EndTestShouldRunAfterDidCommit,
5536                               base::Unretained(this)));
5537   }
5538
5539   void EndTestShouldRunAfterDidCommit() {
5540     EXPECT_TRUE(did_commit_);
5541     EndTest();
5542   }
5543
5544   void DidCommit() override {
5545     EXPECT_FALSE(did_commit_);
5546     did_commit_ = true;
5547   }
5548
5549   void AfterTest() override { EXPECT_TRUE(did_commit_); }
5550
5551  private:
5552   bool did_commit_;
5553 };
5554
5555 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestNoTasksBetweenWillAndDidCommit);
5556
5557 class LayerTreeHostTestUpdateCopyRequests : public LayerTreeHostTest {
5558  protected:
5559   void SetupTree() override {
5560     root = Layer::Create(layer_settings());
5561     child = Layer::Create(layer_settings());
5562     root->AddChild(child);
5563     layer_tree_host()->SetRootLayer(root);
5564     LayerTreeHostTest::SetupTree();
5565   }
5566
5567   static void CopyOutputCallback(scoped_ptr<CopyOutputResult> result) {}
5568
5569   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
5570
5571   void DidCommit() override {
5572     switch (layer_tree_host()->source_frame_number()) {
5573       case 1:
5574         child->RequestCopyOfOutput(CopyOutputRequest::CreateBitmapRequest(
5575             base::Bind(CopyOutputCallback)));
5576         EXPECT_TRUE(
5577             root->draw_properties().layer_or_descendant_has_copy_request);
5578         break;
5579       case 2:
5580         EXPECT_FALSE(
5581             root->draw_properties().layer_or_descendant_has_copy_request);
5582         EndTest();
5583         break;
5584     }
5585   }
5586
5587   void AfterTest() override {}
5588
5589  private:
5590   scoped_refptr<Layer> root;
5591   scoped_refptr<Layer> child;
5592 };
5593
5594 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeHostTestUpdateCopyRequests);
5595
5596 class LayerTreeTestMaskLayerForSurfaceWithClippedLayer : public LayerTreeTest {
5597  protected:
5598   void SetupTree() override {
5599     // The masked layer has bounds 50x50, but it has a child that causes
5600     // the surface bounds to be larger. It also has a parent that clips the
5601     // masked layer and its surface.
5602
5603     scoped_refptr<Layer> root = Layer::Create(layer_settings());
5604
5605     scoped_refptr<Layer> clipping_layer = Layer::Create(layer_settings());
5606     root->AddChild(clipping_layer);
5607
5608     scoped_refptr<FakePictureLayer> content_layer =
5609         FakePictureLayer::Create(layer_settings(), &client_);
5610     clipping_layer->AddChild(content_layer);
5611
5612     scoped_refptr<FakePictureLayer> content_child_layer =
5613         FakePictureLayer::Create(layer_settings(), &client_);
5614     content_layer->AddChild(content_child_layer);
5615
5616     scoped_refptr<FakePictureLayer> mask_layer =
5617         FakePictureLayer::Create(layer_settings(), &client_);
5618     content_layer->SetMaskLayer(mask_layer.get());
5619
5620     gfx::Size root_size(100, 100);
5621     root->SetBounds(root_size);
5622
5623     gfx::Rect clipping_rect(20, 10, 10, 20);
5624     clipping_layer->SetBounds(clipping_rect.size());
5625     clipping_layer->SetPosition(clipping_rect.origin());
5626     clipping_layer->SetMasksToBounds(true);
5627
5628     gfx::Size layer_size(50, 50);
5629     content_layer->SetBounds(layer_size);
5630     content_layer->SetPosition(gfx::Point() - clipping_rect.OffsetFromOrigin());
5631
5632     gfx::Size child_size(50, 50);
5633     content_child_layer->SetBounds(child_size);
5634     content_child_layer->SetPosition(gfx::Point(20, 0));
5635
5636     gfx::Size mask_size(100, 100);
5637     mask_layer->SetBounds(mask_size);
5638     mask_layer->SetIsMask(true);
5639
5640     layer_tree_host()->SetRootLayer(root);
5641     LayerTreeTest::SetupTree();
5642   }
5643
5644   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
5645
5646   DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
5647                                    LayerTreeHostImpl::FrameData* frame_data,
5648                                    DrawResult draw_result) override {
5649     EXPECT_EQ(2u, frame_data->render_passes.size());
5650     RenderPass* root_pass = frame_data->render_passes.back();
5651     EXPECT_EQ(2u, root_pass->quad_list.size());
5652
5653     // There's a solid color quad under everything.
5654     EXPECT_EQ(DrawQuad::SOLID_COLOR, root_pass->quad_list.back()->material);
5655
5656     // The surface is clipped to 10x20.
5657     EXPECT_EQ(DrawQuad::RENDER_PASS, root_pass->quad_list.front()->material);
5658     const RenderPassDrawQuad* render_pass_quad =
5659         RenderPassDrawQuad::MaterialCast(root_pass->quad_list.front());
5660     EXPECT_EQ(gfx::Rect(20, 10, 10, 20).ToString(),
5661               render_pass_quad->rect.ToString());
5662     // The masked layer is 50x50, but the surface size is 10x20. So the texture
5663     // coords in the mask are scaled by 10/50 and 20/50.
5664     // The surface is clipped to (20,10) so the mask texture coords are offset
5665     // by 20/50 and 10/50
5666     EXPECT_EQ(gfx::ScaleRect(gfx::RectF(20.f, 10.f, 10.f, 20.f), 1.f / 50.f)
5667                   .ToString(),
5668               render_pass_quad->MaskUVRect().ToString());
5669     EXPECT_EQ(gfx::Vector2dF(10.f / 50.f, 20.f / 50.f).ToString(),
5670               render_pass_quad->mask_uv_scale.ToString());
5671     EndTest();
5672     return draw_result;
5673   }
5674
5675   void AfterTest() override {}
5676
5677   FakeContentLayerClient client_;
5678 };
5679
5680 SINGLE_AND_MULTI_THREAD_TEST_F(
5681     LayerTreeTestMaskLayerForSurfaceWithClippedLayer);
5682
5683 class LayerTreeTestMaskLayerWithScaling : public LayerTreeTest {
5684  protected:
5685   void InitializeSettings(LayerTreeSettings* settings) override {
5686     settings->layer_transforms_should_scale_layer_contents = true;
5687   }
5688
5689   void SetupTree() override {
5690     // Root
5691     //  |
5692     //  +-- Scaling Layer (adds a 2x scale)
5693     //       |
5694     //       +-- Content Layer
5695     //             +--Mask
5696
5697     scoped_refptr<Layer> root = Layer::Create(layer_settings());
5698
5699     scoped_refptr<Layer> scaling_layer = Layer::Create(layer_settings());
5700     root->AddChild(scaling_layer);
5701
5702     scoped_refptr<FakePictureLayer> content_layer =
5703         FakePictureLayer::Create(layer_settings(), &client_);
5704     scaling_layer->AddChild(content_layer);
5705
5706     scoped_refptr<FakePictureLayer> mask_layer =
5707         FakePictureLayer::Create(layer_settings(), &client_);
5708     content_layer->SetMaskLayer(mask_layer.get());
5709
5710     gfx::Size root_size(100, 100);
5711     root->SetBounds(root_size);
5712
5713     gfx::Size scaling_layer_size(50, 50);
5714     scaling_layer->SetBounds(scaling_layer_size);
5715     gfx::Transform scale;
5716     scale.Scale(2.f, 2.f);
5717     scaling_layer->SetTransform(scale);
5718
5719     content_layer->SetBounds(scaling_layer_size);
5720
5721     mask_layer->SetBounds(scaling_layer_size);
5722     mask_layer->SetIsMask(true);
5723
5724     layer_tree_host()->SetRootLayer(root);
5725     LayerTreeTest::SetupTree();
5726   }
5727
5728   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
5729
5730   DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
5731                                    LayerTreeHostImpl::FrameData* frame_data,
5732                                    DrawResult draw_result) override {
5733     EXPECT_EQ(2u, frame_data->render_passes.size());
5734     RenderPass* root_pass = frame_data->render_passes.back();
5735     EXPECT_EQ(2u, root_pass->quad_list.size());
5736
5737     // There's a solid color quad under everything.
5738     EXPECT_EQ(DrawQuad::SOLID_COLOR, root_pass->quad_list.back()->material);
5739
5740     EXPECT_EQ(DrawQuad::RENDER_PASS, root_pass->quad_list.front()->material);
5741     const RenderPassDrawQuad* render_pass_quad =
5742         RenderPassDrawQuad::MaterialCast(root_pass->quad_list.front());
5743     switch (host_impl->active_tree()->source_frame_number()) {
5744       case 0:
5745         // Check that the tree scaling is correctly taken into account for the
5746         // mask, that should fully map onto the quad.
5747         EXPECT_EQ(gfx::Rect(0, 0, 100, 100).ToString(),
5748                   render_pass_quad->rect.ToString());
5749         EXPECT_EQ(gfx::RectF(0.f, 0.f, 1.f, 1.f).ToString(),
5750                   render_pass_quad->MaskUVRect().ToString());
5751         EXPECT_EQ(gfx::Vector2dF(1.f, 1.f).ToString(),
5752                   render_pass_quad->mask_uv_scale.ToString());
5753         break;
5754       case 1:
5755         // Applying a DSF should change the render surface size, but won't
5756         // affect which part of the mask is used.
5757         EXPECT_EQ(gfx::Rect(0, 0, 200, 200).ToString(),
5758                   render_pass_quad->rect.ToString());
5759         EXPECT_EQ(gfx::RectF(0.f, 0.f, 1.f, 1.f).ToString(),
5760                   render_pass_quad->MaskUVRect().ToString());
5761         EXPECT_EQ(gfx::Vector2dF(1.f, 1.f).ToString(),
5762                   render_pass_quad->mask_uv_scale.ToString());
5763         EndTest();
5764         break;
5765     }
5766     return draw_result;
5767   }
5768
5769   void DidCommit() override {
5770     switch (layer_tree_host()->source_frame_number()) {
5771       case 1:
5772         gfx::Size double_root_size(200, 200);
5773         layer_tree_host()->SetViewportSize(double_root_size);
5774         layer_tree_host()->SetDeviceScaleFactor(2.f);
5775         break;
5776     }
5777   }
5778
5779   void AfterTest() override {}
5780
5781   FakeContentLayerClient client_;
5782 };
5783
5784 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeTestMaskLayerWithScaling);
5785
5786 class LayerTreeTestMaskLayerWithDifferentBounds : public LayerTreeTest {
5787  protected:
5788   void SetupTree() override {
5789     // The mask layer has bounds 100x100 but is attached to a layer with bounds
5790     // 50x50.
5791
5792     scoped_refptr<Layer> root = Layer::Create(layer_settings());
5793
5794     scoped_refptr<FakePictureLayer> content_layer =
5795         FakePictureLayer::Create(layer_settings(), &client_);
5796     root->AddChild(content_layer);
5797
5798     scoped_refptr<FakePictureLayer> mask_layer =
5799         FakePictureLayer::Create(layer_settings(), &client_);
5800     content_layer->SetMaskLayer(mask_layer.get());
5801
5802     gfx::Size root_size(100, 100);
5803     root->SetBounds(root_size);
5804
5805     gfx::Size layer_size(50, 50);
5806     content_layer->SetBounds(layer_size);
5807
5808     gfx::Size mask_size(100, 100);
5809     mask_layer->SetBounds(mask_size);
5810     mask_layer->SetIsMask(true);
5811
5812     layer_tree_host()->SetRootLayer(root);
5813     LayerTreeTest::SetupTree();
5814   }
5815
5816   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
5817
5818   DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
5819                                    LayerTreeHostImpl::FrameData* frame_data,
5820                                    DrawResult draw_result) override {
5821     EXPECT_EQ(2u, frame_data->render_passes.size());
5822     RenderPass* root_pass = frame_data->render_passes.back();
5823     EXPECT_EQ(2u, root_pass->quad_list.size());
5824
5825     // There's a solid color quad under everything.
5826     EXPECT_EQ(DrawQuad::SOLID_COLOR, root_pass->quad_list.back()->material);
5827
5828     EXPECT_EQ(DrawQuad::RENDER_PASS, root_pass->quad_list.front()->material);
5829     const RenderPassDrawQuad* render_pass_quad =
5830         RenderPassDrawQuad::MaterialCast(root_pass->quad_list.front());
5831     switch (host_impl->active_tree()->source_frame_number()) {
5832       case 0:
5833         // Check that the mask fills the surface.
5834         EXPECT_EQ(gfx::Rect(0, 0, 50, 50).ToString(),
5835                   render_pass_quad->rect.ToString());
5836         EXPECT_EQ(gfx::RectF(0.f, 0.f, 1.f, 1.f).ToString(),
5837                   render_pass_quad->MaskUVRect().ToString());
5838         EXPECT_EQ(gfx::Vector2dF(1.f, 1.f).ToString(),
5839                   render_pass_quad->mask_uv_scale.ToString());
5840         break;
5841       case 1:
5842         // Applying a DSF should change the render surface size, but won't
5843         // affect which part of the mask is used.
5844         EXPECT_EQ(gfx::Rect(0, 0, 100, 100).ToString(),
5845                   render_pass_quad->rect.ToString());
5846         EXPECT_EQ(gfx::RectF(0.f, 0.f, 1.f, 1.f).ToString(),
5847                   render_pass_quad->MaskUVRect().ToString());
5848         EXPECT_EQ(gfx::Vector2dF(1.f, 1.f).ToString(),
5849                   render_pass_quad->mask_uv_scale.ToString());
5850         EndTest();
5851         break;
5852     }
5853     return draw_result;
5854   }
5855
5856   void DidCommit() override {
5857     switch (layer_tree_host()->source_frame_number()) {
5858       case 1:
5859         gfx::Size double_root_size(200, 200);
5860         layer_tree_host()->SetViewportSize(double_root_size);
5861         layer_tree_host()->SetDeviceScaleFactor(2.f);
5862         break;
5863     }
5864   }
5865
5866   void AfterTest() override {}
5867
5868   FakeContentLayerClient client_;
5869 };
5870
5871 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeTestMaskLayerWithDifferentBounds);
5872
5873 class LayerTreeTestReflectionMaskLayerWithDifferentBounds
5874     : public LayerTreeTest {
5875  protected:
5876   void SetupTree() override {
5877     // The replica's mask layer has bounds 100x100 but the replica is of a
5878     // layer with bounds 50x50.
5879
5880     scoped_refptr<Layer> root = Layer::Create(layer_settings());
5881
5882     scoped_refptr<FakePictureLayer> content_layer =
5883         FakePictureLayer::Create(layer_settings(), &client_);
5884     root->AddChild(content_layer);
5885
5886     scoped_refptr<Layer> replica_layer = Layer::Create(layer_settings());
5887     content_layer->SetReplicaLayer(replica_layer.get());
5888
5889     scoped_refptr<FakePictureLayer> mask_layer =
5890         FakePictureLayer::Create(layer_settings(), &client_);
5891     replica_layer->SetMaskLayer(mask_layer.get());
5892
5893     gfx::Size root_size(100, 100);
5894     root->SetBounds(root_size);
5895
5896     gfx::Size layer_size(50, 50);
5897     content_layer->SetBounds(layer_size);
5898
5899     gfx::Size mask_size(100, 100);
5900     mask_layer->SetBounds(mask_size);
5901     mask_layer->SetIsMask(true);
5902
5903     layer_tree_host()->SetRootLayer(root);
5904     LayerTreeTest::SetupTree();
5905   }
5906
5907   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
5908
5909   DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
5910                                    LayerTreeHostImpl::FrameData* frame_data,
5911                                    DrawResult draw_result) override {
5912     EXPECT_EQ(2u, frame_data->render_passes.size());
5913     RenderPass* root_pass = frame_data->render_passes.back();
5914     EXPECT_EQ(3u, root_pass->quad_list.size());
5915
5916     // There's a solid color quad under everything.
5917     EXPECT_EQ(DrawQuad::SOLID_COLOR, root_pass->quad_list.back()->material);
5918
5919     EXPECT_EQ(DrawQuad::RENDER_PASS,
5920               root_pass->quad_list.ElementAt(1)->material);
5921     const RenderPassDrawQuad* render_pass_quad =
5922         RenderPassDrawQuad::MaterialCast(root_pass->quad_list.ElementAt(1));
5923     switch (host_impl->active_tree()->source_frame_number()) {
5924       case 0:
5925         // Check that the mask fills the surface.
5926         EXPECT_EQ(gfx::Rect(0, 0, 50, 50).ToString(),
5927                   render_pass_quad->rect.ToString());
5928         EXPECT_EQ(gfx::RectF(0.f, 0.f, 1.f, 1.f).ToString(),
5929                   render_pass_quad->MaskUVRect().ToString());
5930         EXPECT_EQ(gfx::Vector2dF(1.f, 1.f).ToString(),
5931                   render_pass_quad->mask_uv_scale.ToString());
5932         break;
5933       case 1:
5934         // Applying a DSF should change the render surface size, but won't
5935         // affect which part of the mask is used.
5936         EXPECT_EQ(gfx::Rect(0, 0, 100, 100).ToString(),
5937                   render_pass_quad->rect.ToString());
5938         EXPECT_EQ(gfx::RectF(0.f, 0.f, 1.f, 1.f).ToString(),
5939                   render_pass_quad->MaskUVRect().ToString());
5940         EXPECT_EQ(gfx::Vector2dF(1.f, 1.f).ToString(),
5941                   render_pass_quad->mask_uv_scale.ToString());
5942         EndTest();
5943         break;
5944     }
5945     return draw_result;
5946   }
5947
5948   void DidCommit() override {
5949     switch (layer_tree_host()->source_frame_number()) {
5950       case 1:
5951         gfx::Size double_root_size(200, 200);
5952         layer_tree_host()->SetViewportSize(double_root_size);
5953         layer_tree_host()->SetDeviceScaleFactor(2.f);
5954         break;
5955     }
5956   }
5957
5958   void AfterTest() override {}
5959
5960   FakeContentLayerClient client_;
5961 };
5962
5963 SINGLE_AND_MULTI_THREAD_TEST_F(
5964     LayerTreeTestReflectionMaskLayerWithDifferentBounds);
5965
5966 class LayerTreeTestReflectionMaskLayerForSurfaceWithUnclippedChild
5967     : public LayerTreeTest {
5968  protected:
5969   void SetupTree() override {
5970     // The replica is of a layer with bounds 50x50, but it has a child that
5971     // causes the surface bounds to be larger.
5972
5973     scoped_refptr<Layer> root = Layer::Create(layer_settings());
5974
5975     scoped_refptr<FakePictureLayer> content_layer =
5976         FakePictureLayer::Create(layer_settings(), &client_);
5977     root->AddChild(content_layer);
5978
5979     content_child_layer_ = FakePictureLayer::Create(layer_settings(), &client_);
5980     content_layer->AddChild(content_child_layer_);
5981
5982     scoped_refptr<Layer> replica_layer = Layer::Create(layer_settings());
5983     content_layer->SetReplicaLayer(replica_layer.get());
5984
5985     scoped_refptr<FakePictureLayer> mask_layer =
5986         FakePictureLayer::Create(layer_settings(), &client_);
5987     replica_layer->SetMaskLayer(mask_layer.get());
5988
5989     gfx::Size root_size(100, 100);
5990     root->SetBounds(root_size);
5991
5992     gfx::Size layer_size(50, 50);
5993     content_layer->SetBounds(layer_size);
5994     content_child_layer_->SetBounds(layer_size);
5995     content_child_layer_->SetPosition(gfx::PointF(50.f, 0.f));
5996
5997     gfx::Size mask_size(100, 100);
5998     mask_layer->SetBounds(mask_size);
5999     mask_layer->SetIsMask(true);
6000
6001     layer_tree_host()->SetRootLayer(root);
6002     LayerTreeTest::SetupTree();
6003   }
6004
6005   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
6006
6007   DrawResult PrepareToDrawOnThread(LayerTreeHostImpl* host_impl,
6008                                    LayerTreeHostImpl::FrameData* frame_data,
6009                                    DrawResult draw_result) override {
6010     EXPECT_EQ(2u, frame_data->render_passes.size());
6011     RenderPass* root_pass = frame_data->render_passes.back();
6012     EXPECT_EQ(3u, root_pass->quad_list.size());
6013
6014     // There's a solid color quad under everything.
6015     EXPECT_EQ(DrawQuad::SOLID_COLOR, root_pass->quad_list.back()->material);
6016
6017     EXPECT_EQ(DrawQuad::RENDER_PASS,
6018               root_pass->quad_list.ElementAt(1)->material);
6019     const RenderPassDrawQuad* replica_quad =
6020         RenderPassDrawQuad::MaterialCast(root_pass->quad_list.ElementAt(1));
6021     switch (host_impl->active_tree()->source_frame_number()) {
6022       case 0:
6023         // The surface is 100x50.
6024         // The mask covers the owning layer only.
6025         EXPECT_EQ(gfx::Rect(0, 0, 100, 50).ToString(),
6026                   replica_quad->rect.ToString());
6027         EXPECT_EQ(gfx::RectF(0.f, 0.f, 2.f, 1.f).ToString(),
6028                   replica_quad->MaskUVRect().ToString());
6029         EXPECT_EQ(gfx::Vector2dF(2.f, 1.f).ToString(),
6030                   replica_quad->mask_uv_scale.ToString());
6031         break;
6032       case 1:
6033         // The surface is 100x50 with its origin at (-50, 0).
6034         // The mask covers the owning layer only.
6035         EXPECT_EQ(gfx::Rect(-50, 0, 100, 50).ToString(),
6036                   replica_quad->rect.ToString());
6037         EXPECT_EQ(gfx::RectF(-1.f, 0.f, 2.f, 1.f).ToString(),
6038                   replica_quad->MaskUVRect().ToString());
6039         EXPECT_EQ(gfx::Vector2dF(2.f, 1.f).ToString(),
6040                   replica_quad->mask_uv_scale.ToString());
6041         EndTest();
6042         break;
6043     }
6044     return draw_result;
6045   }
6046
6047   void DidCommit() override {
6048     switch (layer_tree_host()->source_frame_number()) {
6049       case 1:
6050         // Move the child to (-50, 0) instead. Now the mask should be moved to
6051         // still cover the layer being replicated.
6052         content_child_layer_->SetPosition(gfx::PointF(-50.f, 0.f));
6053         break;
6054     }
6055   }
6056
6057   void AfterTest() override {}
6058
6059   scoped_refptr<FakePictureLayer> content_child_layer_;
6060   FakeContentLayerClient client_;
6061 };
6062
6063 SINGLE_AND_MULTI_THREAD_TEST_F(
6064     LayerTreeTestReflectionMaskLayerForSurfaceWithUnclippedChild);
6065
6066 class LayerTreeTestPageScaleFlags : public LayerTreeTest {
6067  protected:
6068   void SetupTree() override {
6069     // -root
6070     //   -pre page scale
6071     //   -page scale
6072     //     -page scale child1
6073     //       -page scale grandchild
6074     //     -page scale child2
6075     //   -post page scale
6076
6077     scoped_refptr<Layer> root = Layer::Create(layer_settings());
6078     scoped_refptr<Layer> pre_page_scale = Layer::Create(layer_settings());
6079     scoped_refptr<Layer> page_scale = Layer::Create(layer_settings());
6080     scoped_refptr<Layer> page_scale_child1 = Layer::Create(layer_settings());
6081     scoped_refptr<Layer> page_scale_grandchild =
6082         Layer::Create(layer_settings());
6083     scoped_refptr<Layer> page_scale_child2 = Layer::Create(layer_settings());
6084     scoped_refptr<Layer> post_page_scale = Layer::Create(layer_settings());
6085
6086     root->AddChild(pre_page_scale);
6087     root->AddChild(page_scale);
6088     root->AddChild(post_page_scale);
6089
6090     page_scale->AddChild(page_scale_child1);
6091     page_scale->AddChild(page_scale_child2);
6092     page_scale_child1->AddChild(page_scale_grandchild);
6093
6094     layer_tree_host()->SetRootLayer(root);
6095     LayerTreeTest::SetupTree();
6096
6097     scoped_refptr<Layer> overscroll_elasticity_layer = nullptr;
6098     scoped_refptr<Layer> inner_viewport_scroll_layer = nullptr;
6099     scoped_refptr<Layer> outer_viewport_scroll_layer = nullptr;
6100     layer_tree_host()->RegisterViewportLayers(
6101         overscroll_elasticity_layer, page_scale, inner_viewport_scroll_layer,
6102         outer_viewport_scroll_layer);
6103
6104     affected_by_page_scale_.push_back(page_scale->id());
6105     affected_by_page_scale_.push_back(page_scale_child1->id());
6106     affected_by_page_scale_.push_back(page_scale_child2->id());
6107     affected_by_page_scale_.push_back(page_scale_grandchild->id());
6108
6109     not_affected_by_page_scale_.push_back(root->id());
6110     not_affected_by_page_scale_.push_back(pre_page_scale->id());
6111     not_affected_by_page_scale_.push_back(post_page_scale->id());
6112   }
6113
6114   void BeginTest() override { PostSetNeedsCommitToMainThread(); }
6115
6116   void CommitCompleteOnThread(LayerTreeHostImpl* host_impl) override {
6117     LayerTreeHostCommon::CallFunctionForSubtree(
6118         host_impl->sync_tree()->root_layer(), [this](LayerImpl* layer) {
6119           const std::vector<int>& list =
6120               layer->IsAffectedByPageScale()
6121                   ? this->affected_by_page_scale_
6122                   : this->not_affected_by_page_scale_;
6123           EXPECT_TRUE(std::find(list.begin(), list.end(), layer->id()) !=
6124                       list.end());
6125         });
6126
6127     EndTest();
6128   }
6129
6130   void AfterTest() override {}
6131
6132   std::vector<int> affected_by_page_scale_;
6133   std::vector<int> not_affected_by_page_scale_;
6134 };
6135
6136 SINGLE_AND_MULTI_THREAD_TEST_F(LayerTreeTestPageScaleFlags);
6137
6138 class LayerTreeHostScrollingAndScalingUpdatesLayers : public LayerTreeHostTest {
6139  public:
6140   LayerTreeHostScrollingAndScalingUpdatesLayers()
6141       : requested_update_layers_(false), commit_count_(0) {}
6142
6143   void SetupTree() override {
6144     LayerTreeHostTest::SetupTree();
6145     Layer* root_layer = layer_tree_host()->root_layer();
6146     scoped_refptr<Layer> scroll_layer = Layer::Create(layer_settings());
6147     CreateVirtualViewportLayers(root_layer, scroll_layer, root_layer->bounds(),
6148                                 root_layer->bounds(), layer_tree_host(),
6149                                 layer_settings());
6150   }
6151
6152   void BeginTest() override {
6153     LayerTreeHostCommon::ScrollUpdateInfo scroll;
6154     scroll.layer_id = layer_tree_host()->root_layer()->id();
6155     scroll.scroll_delta = gfx::Vector2d(0, 33);
6156     scroll_info_.scrolls.push_back(scroll);
6157
6158     scale_info_.page_scale_delta = 2.71f;
6159
6160     PostSetNeedsCommitToMainThread();
6161   }
6162
6163   void BeginMainFrame(const BeginFrameArgs& args) override {
6164     switch (commit_count_) {
6165       case 0:
6166         requested_update_layers_ = false;
6167         layer_tree_host()->ApplyScrollAndScale(&no_op_info_);
6168         EXPECT_FALSE(requested_update_layers_);
6169         break;
6170       case 1:
6171         requested_update_layers_ = false;
6172         layer_tree_host()->ApplyScrollAndScale(&scale_info_);
6173         EXPECT_TRUE(requested_update_layers_);
6174         break;
6175       case 2:
6176         requested_update_layers_ = false;
6177         layer_tree_host()->ApplyScrollAndScale(&scroll_info_);
6178         EXPECT_TRUE(requested_update_layers_);
6179         EndTest();
6180         break;
6181       default:
6182         NOTREACHED();
6183     }
6184   }
6185
6186   void DidSetNeedsUpdateLayers() override { requested_update_layers_ = true; }
6187
6188   void DidCommit() override {
6189     if (++commit_count_ < 3)
6190       PostSetNeedsCommitToMainThread();
6191   }
6192
6193   void AfterTest() override {}
6194
6195   ScrollAndScaleSet scroll_info_;
6196   ScrollAndScaleSet scale_info_;
6197   ScrollAndScaleSet no_op_info_;
6198   bool requested_update_layers_;
6199   int commit_count_;
6200 };
6201
6202 MULTI_THREAD_TEST_F(LayerTreeHostScrollingAndScalingUpdatesLayers);
6203
6204 }  // namespace
6205 }  // namespace cc