content/public/test/render_view_test.cc

   1 // Copyright (c) 2012 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 "content/public/test/render_view_test.h"
   6
   7 #include <cctype>
   8
   9 #include "base/location.h"
  10 #include "base/run_loop.h"
  11 #include "base/single_thread_task_runner.h"
  12 #include "components/scheduler/renderer/renderer_scheduler.h"
  13 #include "content/common/dom_storage/dom_storage_types.h"
  14 #include "content/common/frame_messages.h"
  15 #include "content/common/input_messages.h"
  16 #include "content/common/view_messages.h"
  17 #include "content/public/browser/content_browser_client.h"
  18 #include "content/public/browser/native_web_keyboard_event.h"
  19 #include "content/public/common/content_client.h"
  20 #include "content/public/common/renderer_preferences.h"
  21 #include "content/public/renderer/content_renderer_client.h"
  22 #include "content/public/test/frame_load_waiter.h"
  23 #include "content/renderer/history_controller.h"
  24 #include "content/renderer/history_serialization.h"
  25 #include "content/renderer/render_thread_impl.h"
  26 #include "content/renderer/render_view_impl.h"
  27 #include "content/renderer/renderer_blink_platform_impl.h"
  28 #include "content/renderer/renderer_main_platform_delegate.h"
  29 #include "content/test/fake_compositor_dependencies.h"
  30 #include "content/test/mock_render_process.h"
  31 #include "content/test/test_content_client.h"
  32 #include "content/test/test_render_frame.h"
  33 #include "third_party/WebKit/public/platform/WebScreenInfo.h"
  34 #include "third_party/WebKit/public/platform/WebURLRequest.h"
  35 #include "third_party/WebKit/public/web/WebDocument.h"
  36 #include "third_party/WebKit/public/web/WebHistoryItem.h"
  37 #include "third_party/WebKit/public/web/WebInputElement.h"
  38 #include "third_party/WebKit/public/web/WebInputEvent.h"
  39 #include "third_party/WebKit/public/web/WebKit.h"
  40 #include "third_party/WebKit/public/web/WebLocalFrame.h"
  41 #include "third_party/WebKit/public/web/WebScriptSource.h"
  42 #include "third_party/WebKit/public/web/WebView.h"
  43 #include "ui/base/resource/resource_bundle.h"
  44 #include "ui/events/keycodes/keyboard_codes.h"
  45 #include "v8/include/v8.h"
  46
  47 #if defined(OS_MACOSX)
  48 #include "base/mac/scoped_nsautorelease_pool.h"
  49 #endif
  50
  51 using blink::WebGestureEvent;
  52 using blink::WebInputEvent;
  53 using blink::WebLocalFrame;
  54 using blink::WebMouseEvent;
  55 using blink::WebScriptSource;
  56 using blink::WebString;
  57 using blink::WebURLRequest;
  58
  59 namespace {
  60
  61 const int32 kRouteId = 5;
  62 const int32 kMainFrameRouteId = 6;
  63 const int32 kNewWindowRouteId = 7;
  64 const int32 kNewFrameRouteId = 10;
  65 const int32 kSurfaceId = 42;
  66
  67 // Converts |ascii_character| into |key_code| and returns true on success.
  68 // Handles only the characters needed by tests.
  69 bool GetWindowsKeyCode(char ascii_character, int* key_code) {
  70   if (isalnum(ascii_character)) {
  71     *key_code = base::ToUpperASCII(ascii_character);
  72     return true;
  73   }
  74
  75   switch (ascii_character) {
  76     case '@':
  77       *key_code = '2';
  78       return true;
  79     case '_':
  80       *key_code = ui::VKEY_OEM_MINUS;
  81       return true;
  82     case '.':
  83       *key_code = ui::VKEY_OEM_PERIOD;
  84       return true;
  85     case ui::VKEY_BACK:
  86       *key_code = ui::VKEY_BACK;
  87       return true;
  88     default:
  89       return false;
  90   }
  91 }
  92
  93 }  // namespace
  94
  95 namespace content {
  96
  97 class RendererBlinkPlatformImplNoSandboxImpl
  98     : public RendererBlinkPlatformImpl {
  99  public:
 100   RendererBlinkPlatformImplNoSandboxImpl(
 101       scheduler::RendererScheduler* scheduler)
 102       : RendererBlinkPlatformImpl(scheduler) {}
 103
 104   virtual blink::WebSandboxSupport* sandboxSupport() {
 105     return NULL;
 106   }
 107 };
 108
 109 RenderViewTest::RendererBlinkPlatformImplNoSandbox::
 110     RendererBlinkPlatformImplNoSandbox() {
 111   renderer_scheduler_ = scheduler::RendererScheduler::Create();
 112   blink_platform_impl_.reset(
 113       new RendererBlinkPlatformImplNoSandboxImpl(renderer_scheduler_.get()));
 114 }
 115
 116 RenderViewTest::RendererBlinkPlatformImplNoSandbox::
 117     ~RendererBlinkPlatformImplNoSandbox() {
 118 }
 119
 120 blink::Platform*
 121     RenderViewTest::RendererBlinkPlatformImplNoSandbox::Get() const {
 122   return blink_platform_impl_.get();
 123 }
 124
 125 scheduler::RendererScheduler*
 126     RenderViewTest::RendererBlinkPlatformImplNoSandbox::Scheduler() const {
 127   return renderer_scheduler_.get();
 128 }
 129
 130 RenderViewTest::RenderViewTest()
 131     : view_(NULL) {
 132   RenderFrameImpl::InstallCreateHook(&TestRenderFrame::CreateTestRenderFrame);
 133 }
 134
 135 RenderViewTest::~RenderViewTest() {
 136 }
 137
 138 void RenderViewTest::ProcessPendingMessages() {
 139   msg_loop_.task_runner()->PostTask(FROM_HERE,
 140                                     base::MessageLoop::QuitClosure());
 141   msg_loop_.Run();
 142 }
 143
 144 WebLocalFrame* RenderViewTest::GetMainFrame() {
 145   return view_->GetWebView()->mainFrame()->toWebLocalFrame();
 146 }
 147
 148 void RenderViewTest::ExecuteJavaScriptForTests(const char* js) {
 149   GetMainFrame()->executeScript(WebScriptSource(WebString::fromUTF8(js)));
 150 }
 151
 152 bool RenderViewTest::ExecuteJavaScriptAndReturnIntValue(
 153     const base::string16& script,
 154     int* int_result) {
 155   v8::HandleScope handle_scope(v8::Isolate::GetCurrent());
 156   v8::Local<v8::Value> result =
 157       GetMainFrame()->executeScriptAndReturnValue(WebScriptSource(script));
 158   if (result.IsEmpty() || !result->IsInt32())
 159     return false;
 160
 161   if (int_result)
 162     *int_result = result->Int32Value();
 163
 164   return true;
 165 }
 166
 167 void RenderViewTest::LoadHTML(const char* html) {
 168   std::string url_str = "data:text/html;charset=utf-8,";
 169   url_str.append(html);
 170   GURL url(url_str);
 171   WebURLRequest request(url);
 172   request.setCheckForBrowserSideNavigation(false);
 173   GetMainFrame()->loadRequest(request);
 174   // The load actually happens asynchronously, so we pump messages to process
 175   // the pending continuation.
 176   FrameLoadWaiter(view_->GetMainRenderFrame()).Wait();
 177 }
 178
 179 PageState RenderViewTest::GetCurrentPageState() {
 180   RenderViewImpl* impl = static_cast<RenderViewImpl*>(view_);
 181   return HistoryEntryToPageState(impl->history_controller()->GetCurrentEntry());
 182 }
 183
 184 void RenderViewTest::GoBack(const PageState& state) {
 185   GoToOffset(-1, state);
 186 }
 187
 188 void RenderViewTest::GoForward(const PageState& state) {
 189   GoToOffset(1, state);
 190 }
 191
 192 void RenderViewTest::SetUp() {
 193   // Blink needs to be initialized before calling CreateContentRendererClient()
 194   // because it uses blink internally.
 195   blink::initialize(blink_platform_impl_.Get());
 196
 197   content_client_.reset(CreateContentClient());
 198   content_browser_client_.reset(CreateContentBrowserClient());
 199   content_renderer_client_.reset(CreateContentRendererClient());
 200   SetContentClient(content_client_.get());
 201   SetBrowserClientForTesting(content_browser_client_.get());
 202   SetRendererClientForTesting(content_renderer_client_.get());
 203
 204   // Subclasses can set render_thread_ with their own implementation before
 205   // calling RenderViewTest::SetUp().
 206   if (!render_thread_)
 207     render_thread_.reset(new MockRenderThread());
 208   render_thread_->set_routing_id(kRouteId);
 209   render_thread_->set_surface_id(kSurfaceId);
 210   render_thread_->set_new_window_routing_id(kNewWindowRouteId);
 211   render_thread_->set_new_frame_routing_id(kNewFrameRouteId);
 212
 213 #if defined(OS_MACOSX)
 214   autorelease_pool_.reset(new base::mac::ScopedNSAutoreleasePool());
 215 #endif
 216   command_line_.reset(new base::CommandLine(base::CommandLine::NO_PROGRAM));
 217   params_.reset(new MainFunctionParams(*command_line_));
 218   platform_.reset(new RendererMainPlatformDelegate(*params_));
 219   platform_->PlatformInitialize();
 220
 221   // Setting flags and really doing anything with WebKit is fairly fragile and
 222   // hacky, but this is the world we live in...
 223   std::string flags("--expose-gc");
 224   v8::V8::SetFlagsFromString(flags.c_str(), static_cast<int>(flags.size()));
 225
 226   // Ensure that we register any necessary schemes when initializing WebKit,
 227   // since we are using a MockRenderThread.
 228   RenderThreadImpl::RegisterSchemes();
 229
 230   // This check is needed because when run under content_browsertests,
 231   // ResourceBundle isn't initialized (since we have to use a diferent test
 232   // suite implementation than for content_unittests). For browser_tests, this
 233   // is already initialized.
 234   if (!ui::ResourceBundle::HasSharedInstance())
 235     ui::ResourceBundle::InitSharedInstanceWithLocale(
 236         "en-US", NULL, ui::ResourceBundle::DO_NOT_LOAD_COMMON_RESOURCES);
 237
 238   compositor_deps_.reset(new FakeCompositorDependencies);
 239   mock_process_.reset(new MockRenderProcess);
 240
 241   ViewMsg_New_Params view_params;
 242   view_params.opener_frame_route_id = MSG_ROUTING_NONE;
 243   view_params.window_was_created_with_opener = false;
 244   view_params.renderer_preferences = RendererPreferences();
 245   view_params.web_preferences = WebPreferences();
 246   view_params.view_id = kRouteId;
 247   view_params.main_frame_routing_id = kMainFrameRouteId;
 248   view_params.surface_id = kSurfaceId;
 249   view_params.session_storage_namespace_id = kInvalidSessionStorageNamespaceId;
 250   view_params.swapped_out = false;
 251   view_params.replicated_frame_state = FrameReplicationState();
 252   view_params.proxy_routing_id = MSG_ROUTING_NONE;
 253   view_params.hidden = false;
 254   view_params.never_visible = false;
 255   view_params.next_page_id = 1;
 256   view_params.initial_size = *InitialSizeParams();
 257   view_params.enable_auto_resize = false;
 258   view_params.min_size = gfx::Size();
 259   view_params.max_size = gfx::Size();
 260
 261   // This needs to pass the mock render thread to the view.
 262   RenderViewImpl* view =
 263       RenderViewImpl::Create(compositor_deps_.get(), view_params, false);
 264   view_ = view;
 265 }
 266
 267 void RenderViewTest::TearDown() {
 268   // Try very hard to collect garbage before shutting down.
 269   // "5" was chosen following http://crbug.com/46571#c9
 270   const int kGCIterations = 5;
 271   for (int i = 0; i < kGCIterations; i++)
 272     GetMainFrame()->collectGarbage();
 273
 274   // Run the loop so the release task from the renderwidget executes.
 275   ProcessPendingMessages();
 276
 277   for (int i = 0; i < kGCIterations; i++)
 278     GetMainFrame()->collectGarbage();
 279
 280   render_thread_->SendCloseMessage();
 281   view_ = NULL;
 282   mock_process_.reset();
 283
 284   // After telling the view to close and resetting mock_process_ we may get
 285   // some new tasks which need to be processed before shutting down WebKit
 286   // (http://crbug.com/21508).
 287   base::RunLoop().RunUntilIdle();
 288
 289 #if defined(OS_MACOSX)
 290   // Needs to run before blink::shutdown().
 291   autorelease_pool_.reset(NULL);
 292 #endif
 293
 294   blink_platform_impl_.Scheduler()->Shutdown();
 295   blink::shutdown();
 296
 297   platform_->PlatformUninitialize();
 298   platform_.reset();
 299   params_.reset();
 300   command_line_.reset();
 301 }
 302
 303 void RenderViewTest::SendNativeKeyEvent(
 304     const NativeWebKeyboardEvent& key_event) {
 305   SendWebKeyboardEvent(key_event);
 306 }
 307
 308 void RenderViewTest::SendWebKeyboardEvent(
 309     const blink::WebKeyboardEvent& key_event) {
 310   RenderViewImpl* impl = static_cast<RenderViewImpl*>(view_);
 311   impl->OnMessageReceived(
 312       InputMsg_HandleInputEvent(0, &key_event, ui::LatencyInfo(), false));
 313 }
 314
 315 void RenderViewTest::SendWebMouseEvent(
 316     const blink::WebMouseEvent& mouse_event) {
 317   RenderViewImpl* impl = static_cast<RenderViewImpl*>(view_);
 318   impl->OnMessageReceived(
 319       InputMsg_HandleInputEvent(0, &mouse_event, ui::LatencyInfo(), false));
 320 }
 321
 322 const char* const kGetCoordinatesScript =
 323     "(function() {"
 324     "  function GetCoordinates(elem) {"
 325     "    if (!elem)"
 326     "      return [ 0, 0];"
 327     "    var coordinates = [ elem.offsetLeft, elem.offsetTop];"
 328     "    var parent_coordinates = GetCoordinates(elem.offsetParent);"
 329     "    coordinates[0] += parent_coordinates[0];"
 330     "    coordinates[1] += parent_coordinates[1];"
 331     "    return [ Math.round(coordinates[0]),"
 332     "             Math.round(coordinates[1])];"
 333     "  };"
 334     "  var elem = document.getElementById('$1');"
 335     "  if (!elem)"
 336     "    return null;"
 337     "  var bounds = GetCoordinates(elem);"
 338     "  bounds[2] = Math.round(elem.offsetWidth);"
 339     "  bounds[3] = Math.round(elem.offsetHeight);"
 340     "  return bounds;"
 341     "})();";
 342 gfx::Rect RenderViewTest::GetElementBounds(const std::string& element_id) {
 343   std::vector<std::string> params;
 344   params.push_back(element_id);
 345   std::string script =
 346       base::ReplaceStringPlaceholders(kGetCoordinatesScript, params, NULL);
 347
 348   v8::Isolate* isolate = v8::Isolate::GetCurrent();
 349   v8::HandleScope handle_scope(isolate);
 350   v8::Local<v8::Value>  value = GetMainFrame()->executeScriptAndReturnValue(
 351       WebScriptSource(WebString::fromUTF8(script)));
 352   if (value.IsEmpty() || !value->IsArray())
 353     return gfx::Rect();
 354
 355   v8::Local<v8::Array> array = value.As<v8::Array>();
 356   if (array->Length() != 4)
 357     return gfx::Rect();
 358   std::vector<int> coords;
 359   for (int i = 0; i < 4; ++i) {
 360     v8::Local<v8::Number> index = v8::Number::New(isolate, i);
 361     v8::Local<v8::Value> value = array->Get(index);
 362     if (value.IsEmpty() || !value->IsInt32())
 363       return gfx::Rect();
 364     coords.push_back(value->Int32Value());
 365   }
 366   return gfx::Rect(coords[0], coords[1], coords[2], coords[3]);
 367 }
 368
 369 bool RenderViewTest::SimulateElementClick(const std::string& element_id) {
 370   gfx::Rect bounds = GetElementBounds(element_id);
 371   if (bounds.IsEmpty())
 372     return false;
 373   SimulatePointClick(bounds.CenterPoint());
 374   return true;
 375 }
 376
 377 void RenderViewTest::SimulatePointClick(const gfx::Point& point) {
 378   WebMouseEvent mouse_event;
 379   mouse_event.type = WebInputEvent::MouseDown;
 380   mouse_event.button = WebMouseEvent::ButtonLeft;
 381   mouse_event.x = point.x();
 382   mouse_event.y = point.y();
 383   mouse_event.clickCount = 1;
 384   RenderViewImpl* impl = static_cast<RenderViewImpl*>(view_);
 385   impl->OnMessageReceived(
 386       InputMsg_HandleInputEvent(0, &mouse_event, ui::LatencyInfo(), false));
 387   mouse_event.type = WebInputEvent::MouseUp;
 388   impl->OnMessageReceived(
 389       InputMsg_HandleInputEvent(0, &mouse_event, ui::LatencyInfo(), false));
 390 }
 391
 392
 393 bool RenderViewTest::SimulateElementRightClick(const std::string& element_id) {
 394   gfx::Rect bounds = GetElementBounds(element_id);
 395   if (bounds.IsEmpty())
 396     return false;
 397   SimulatePointRightClick(bounds.CenterPoint());
 398   return true;
 399 }
 400
 401 void RenderViewTest::SimulatePointRightClick(const gfx::Point& point) {
 402   WebMouseEvent mouse_event;
 403   mouse_event.type = WebInputEvent::MouseDown;
 404   mouse_event.button = WebMouseEvent::ButtonRight;
 405   mouse_event.x = point.x();
 406   mouse_event.y = point.y();
 407   mouse_event.clickCount = 1;
 408   RenderViewImpl* impl = static_cast<RenderViewImpl*>(view_);
 409   impl->OnMessageReceived(
 410       InputMsg_HandleInputEvent(0, &mouse_event, ui::LatencyInfo(), false));
 411   mouse_event.type = WebInputEvent::MouseUp;
 412   impl->OnMessageReceived(
 413       InputMsg_HandleInputEvent(0, &mouse_event, ui::LatencyInfo(), false));
 414 }
 415
 416 void RenderViewTest::SimulateRectTap(const gfx::Rect& rect) {
 417   WebGestureEvent gesture_event;
 418   gesture_event.x = rect.CenterPoint().x();
 419   gesture_event.y = rect.CenterPoint().y();
 420   gesture_event.data.tap.tapCount = 1;
 421   gesture_event.data.tap.width = rect.width();
 422   gesture_event.data.tap.height = rect.height();
 423   gesture_event.type = WebInputEvent::GestureTap;
 424   RenderViewImpl* impl = static_cast<RenderViewImpl*>(view_);
 425   impl->OnMessageReceived(
 426       InputMsg_HandleInputEvent(0, &gesture_event, ui::LatencyInfo(), false));
 427   impl->FocusChangeComplete();
 428 }
 429
 430 void RenderViewTest::SetFocused(const blink::WebNode& node) {
 431   RenderViewImpl* impl = static_cast<RenderViewImpl*>(view_);
 432   impl->focusedNodeChanged(blink::WebNode(), node);
 433 }
 434
 435 void RenderViewTest::Reload(const GURL& url) {
 436   CommonNavigationParams common_params(
 437       url, Referrer(), ui::PAGE_TRANSITION_LINK, FrameMsg_Navigate_Type::RELOAD,
 438       true, false, base::TimeTicks(),
 439       FrameMsg_UILoadMetricsReportType::NO_REPORT, GURL(), GURL());
 440   RenderViewImpl* impl = static_cast<RenderViewImpl*>(view_);
 441   TestRenderFrame* frame =
 442       static_cast<TestRenderFrame*>(impl->GetMainRenderFrame());
 443   frame->Navigate(common_params, StartNavigationParams(),
 444                   RequestNavigationParams());
 445   FrameLoadWaiter(frame).Wait();
 446 }
 447
 448 uint32 RenderViewTest::GetNavigationIPCType() {
 449   return FrameHostMsg_DidCommitProvisionalLoad::ID;
 450 }
 451
 452 void RenderViewTest::Resize(gfx::Size new_size,
 453                             gfx::Rect resizer_rect,
 454                             bool is_fullscreen_granted) {
 455   ViewMsg_Resize_Params params;
 456   params.screen_info = blink::WebScreenInfo();
 457   params.new_size = new_size;
 458   params.physical_backing_size = new_size;
 459   params.top_controls_height = 0.f;
 460   params.top_controls_shrink_blink_size = false;
 461   params.resizer_rect = resizer_rect;
 462   params.is_fullscreen_granted = is_fullscreen_granted;
 463   params.display_mode = blink::WebDisplayModeBrowser;
 464   scoped_ptr<IPC::Message> resize_message(new ViewMsg_Resize(0, params));
 465   OnMessageReceived(*resize_message);
 466 }
 467
 468 void RenderViewTest::SimulateUserTypingASCIICharacter(char ascii_character,
 469                                                       bool flush_message_loop) {
 470   blink::WebKeyboardEvent event;
 471   event.text[0] = ascii_character;
 472   ASSERT_TRUE(GetWindowsKeyCode(ascii_character, &event.windowsKeyCode));
 473   if (isupper(ascii_character) || ascii_character == '@' ||
 474       ascii_character == '_') {
 475     event.modifiers = blink::WebKeyboardEvent::ShiftKey;
 476   }
 477
 478   event.type = blink::WebKeyboardEvent::RawKeyDown;
 479   SendWebKeyboardEvent(event);
 480
 481   event.type = blink::WebKeyboardEvent::Char;
 482   SendWebKeyboardEvent(event);
 483
 484   event.type = blink::WebKeyboardEvent::KeyUp;
 485   SendWebKeyboardEvent(event);
 486
 487   if (flush_message_loop) {
 488     // Processing is delayed because of a Blink bug:
 489     // https://bugs.webkit.org/show_bug.cgi?id=16976 See
 490     // PasswordAutofillAgent::TextDidChangeInTextField() for details.
 491     base::MessageLoop::current()->RunUntilIdle();
 492   }
 493 }
 494
 495 void RenderViewTest::SimulateUserInputChangeForElement(
 496     blink::WebInputElement* input,
 497     const std::string& new_value) {
 498   ASSERT_TRUE(base::IsStringASCII(new_value));
 499   while (!input->focused())
 500     input->document().frame()->view()->advanceFocus(false);
 501
 502   size_t previous_length = input->value().length();
 503   for (size_t i = 0; i < previous_length; ++i)
 504     SimulateUserTypingASCIICharacter(ui::VKEY_BACK, false);
 505
 506   EXPECT_TRUE(input->value().utf8().empty());
 507   for (size_t i = 0; i < new_value.size(); ++i)
 508     SimulateUserTypingASCIICharacter(new_value[i], false);
 509
 510   // Compare only beginning, because autocomplete may have filled out the
 511   // form.
 512   EXPECT_EQ(new_value, input->value().utf8().substr(0, new_value.length()));
 513
 514   base::MessageLoop::current()->RunUntilIdle();
 515 }
 516
 517 bool RenderViewTest::OnMessageReceived(const IPC::Message& msg) {
 518   RenderViewImpl* impl = static_cast<RenderViewImpl*>(view_);
 519   return impl->OnMessageReceived(msg);
 520 }
 521
 522 void RenderViewTest::DidNavigateWithinPage(blink::WebLocalFrame* frame,
 523                                            bool is_new_navigation) {
 524   RenderViewImpl* impl = static_cast<RenderViewImpl*>(view_);
 525   blink::WebHistoryItem item;
 526   item.initialize();
 527   impl->GetMainRenderFrame()->didNavigateWithinPage(
 528       frame,
 529       item,
 530       is_new_navigation ? blink::WebStandardCommit
 531                         : blink::WebHistoryInertCommit);
 532 }
 533
 534 void RenderViewTest::SendContentStateImmediately() {
 535   RenderViewImpl* impl = static_cast<RenderViewImpl*>(view_);
 536   impl->set_send_content_state_immediately(true);
 537 }
 538
 539 blink::WebWidget* RenderViewTest::GetWebWidget() {
 540   RenderViewImpl* impl = static_cast<RenderViewImpl*>(view_);
 541   return impl->webwidget();
 542 }
 543
 544
 545 ContentClient* RenderViewTest::CreateContentClient() {
 546   return new TestContentClient;
 547 }
 548
 549 ContentBrowserClient* RenderViewTest::CreateContentBrowserClient() {
 550   return new ContentBrowserClient;
 551 }
 552
 553 ContentRendererClient* RenderViewTest::CreateContentRendererClient() {
 554   return new ContentRendererClient;
 555 }
 556
 557 scoped_ptr<ViewMsg_Resize_Params> RenderViewTest::InitialSizeParams() {
 558   return make_scoped_ptr(new ViewMsg_Resize_Params());
 559 }
 560
 561 void RenderViewTest::GoToOffset(int offset, const PageState& state) {
 562   RenderViewImpl* impl = static_cast<RenderViewImpl*>(view_);
 563
 564   int history_list_length = impl->historyBackListCount() +
 565                             impl->historyForwardListCount() + 1;
 566   int pending_offset = offset + impl->history_list_offset_;
 567
 568   CommonNavigationParams common_params(
 569       GURL(), Referrer(), ui::PAGE_TRANSITION_FORWARD_BACK,
 570       FrameMsg_Navigate_Type::NORMAL, true, false, base::TimeTicks(),
 571       FrameMsg_UILoadMetricsReportType::NO_REPORT, GURL(), GURL());
 572   RequestNavigationParams request_params;
 573   request_params.page_state = state;
 574   request_params.page_id = impl->page_id_ + offset;
 575   request_params.nav_entry_id = pending_offset + 1;
 576   request_params.pending_history_list_offset = pending_offset;
 577   request_params.current_history_list_offset = impl->history_list_offset_;
 578   request_params.current_history_list_length = history_list_length;
 579
 580   TestRenderFrame* frame =
 581       static_cast<TestRenderFrame*>(impl->GetMainRenderFrame());
 582   frame->Navigate(common_params, StartNavigationParams(), request_params);
 583
 584   // The load actually happens asynchronously, so we pump messages to process
 585   // the pending continuation.
 586   FrameLoadWaiter(frame).Wait();
 587 }
 588
 589 }  // namespace content