content/browser/renderer_host/render_view_host_impl.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/browser/renderer_host/render_view_host_impl.h"
   6
   7 #include <set>
   8 #include <string>
   9 #include <utility>
  10 #include <vector>
  11
  12 #include "base/callback.h"
  13 #include "base/command_line.h"
  14 #include "base/debug/trace_event.h"
  15 #include "base/i18n/rtl.h"
  16 #include "base/json/json_reader.h"
  17 #include "base/message_loop/message_loop.h"
  18 #include "base/metrics/histogram.h"
  19 #include "base/stl_util.h"
  20 #include "base/strings/string_util.h"
  21 #include "base/strings/utf_string_conversions.h"
  22 #include "base/sys_info.h"
  23 #include "base/time/time.h"
  24 #include "base/values.h"
  25 #include "cc/base/switches.h"
  26 #include "content/browser/accessibility/browser_accessibility_manager.h"
  27 #include "content/browser/child_process_security_policy_impl.h"
  28 #include "content/browser/cross_site_request_manager.h"
  29 #include "content/browser/dom_storage/session_storage_namespace_impl.h"
  30 #include "content/browser/frame_host/frame_tree.h"
  31 #include "content/browser/gpu/compositor_util.h"
  32 #include "content/browser/gpu/gpu_data_manager_impl.h"
  33 #include "content/browser/gpu/gpu_process_host.h"
  34 #include "content/browser/gpu/gpu_surface_tracker.h"
  35 #include "content/browser/host_zoom_map_impl.h"
  36 #include "content/browser/loader/resource_dispatcher_host_impl.h"
  37 #include "content/browser/renderer_host/dip_util.h"
  38 #include "content/browser/renderer_host/input/timeout_monitor.h"
  39 #include "content/browser/renderer_host/media/audio_renderer_host.h"
  40 #include "content/browser/renderer_host/render_process_host_impl.h"
  41 #include "content/browser/renderer_host/render_view_host_delegate.h"
  42 #include "content/browser/renderer_host/render_view_host_delegate_view.h"
  43 #include "content/browser/renderer_host/render_widget_host_view_base.h"
  44 #include "content/common/accessibility_messages.h"
  45 #include "content/common/browser_plugin/browser_plugin_messages.h"
  46 #include "content/common/content_switches_internal.h"
  47 #include "content/common/drag_messages.h"
  48 #include "content/common/frame_messages.h"
  49 #include "content/common/input_messages.h"
  50 #include "content/common/inter_process_time_ticks_converter.h"
  51 #include "content/common/mojo/mojo_service_names.h"
  52 #include "content/common/speech_recognition_messages.h"
  53 #include "content/common/swapped_out_messages.h"
  54 #include "content/common/view_messages.h"
  55 #include "content/common/web_ui_setup.mojom.h"
  56 #include "content/public/browser/ax_event_notification_details.h"
  57 #include "content/public/browser/browser_accessibility_state.h"
  58 #include "content/public/browser/browser_context.h"
  59 #include "content/public/browser/browser_message_filter.h"
  60 #include "content/public/browser/content_browser_client.h"
  61 #include "content/public/browser/native_web_keyboard_event.h"
  62 #include "content/public/browser/notification_details.h"
  63 #include "content/public/browser/notification_service.h"
  64 #include "content/public/browser/notification_types.h"
  65 #include "content/public/browser/render_frame_host.h"
  66 #include "content/public/browser/render_widget_host_iterator.h"
  67 #include "content/public/browser/storage_partition.h"
  68 #include "content/public/browser/user_metrics.h"
  69 #include "content/public/common/bindings_policy.h"
  70 #include "content/public/common/content_constants.h"
  71 #include "content/public/common/content_switches.h"
  72 #include "content/public/common/context_menu_params.h"
  73 #include "content/public/common/drop_data.h"
  74 #include "content/public/common/result_codes.h"
  75 #include "content/public/common/url_constants.h"
  76 #include "content/public/common/url_utils.h"
  77 #include "net/base/filename_util.h"
  78 #include "net/base/net_util.h"
  79 #include "net/base/network_change_notifier.h"
  80 #include "net/url_request/url_request_context_getter.h"
  81 #include "third_party/skia/include/core/SkBitmap.h"
  82 #include "ui/accessibility/ax_tree.h"
  83 #include "ui/base/touch/touch_device.h"
  84 #include "ui/base/touch/touch_enabled.h"
  85 #include "ui/base/ui_base_switches.h"
  86 #include "ui/gfx/image/image_skia.h"
  87 #include "ui/gfx/native_widget_types.h"
  88 #include "ui/native_theme/native_theme_switches.h"
  89 #include "ui/shell_dialogs/selected_file_info.h"
  90 #include "webkit/browser/fileapi/isolated_context.h"
  91
  92 #if defined(OS_MACOSX)
  93 #include "content/browser/renderer_host/popup_menu_helper_mac.h"
  94 #elif defined(OS_ANDROID)
  95 #include "content/browser/media/android/browser_media_player_manager.h"
  96 #elif defined(OS_WIN)
  97 #include "base/win/win_util.h"
  98 #endif
  99
 100 using base::TimeDelta;
 101 using blink::WebConsoleMessage;
 102 using blink::WebDragOperation;
 103 using blink::WebDragOperationNone;
 104 using blink::WebDragOperationsMask;
 105 using blink::WebInputEvent;
 106 using blink::WebMediaPlayerAction;
 107 using blink::WebPluginAction;
 108
 109 namespace content {
 110 namespace {
 111
 112 // Translate a WebKit text direction into a base::i18n one.
 113 base::i18n::TextDirection WebTextDirectionToChromeTextDirection(
 114     blink::WebTextDirection dir) {
 115   switch (dir) {
 116     case blink::WebTextDirectionLeftToRight:
 117       return base::i18n::LEFT_TO_RIGHT;
 118     case blink::WebTextDirectionRightToLeft:
 119       return base::i18n::RIGHT_TO_LEFT;
 120     default:
 121       NOTREACHED();
 122       return base::i18n::UNKNOWN_DIRECTION;
 123   }
 124 }
 125
 126 #if defined(OS_WIN)
 127
 128 const int kVirtualKeyboardDisplayWaitTimeoutMs = 100;
 129 const int kMaxVirtualKeyboardDisplayRetries = 5;
 130
 131 void DismissVirtualKeyboardTask() {
 132   static int virtual_keyboard_display_retries = 0;
 133   // If the virtual keyboard is not yet visible, then we execute the task again
 134   // waiting for it to show up.
 135   if (!base::win::DismissVirtualKeyboard()) {
 136     if (virtual_keyboard_display_retries < kMaxVirtualKeyboardDisplayRetries) {
 137       BrowserThread::PostDelayedTask(
 138           BrowserThread::UI, FROM_HERE,
 139           base::Bind(base::IgnoreResult(&DismissVirtualKeyboardTask)),
 140           TimeDelta::FromMilliseconds(kVirtualKeyboardDisplayWaitTimeoutMs));
 141       ++virtual_keyboard_display_retries;
 142     } else {
 143       virtual_keyboard_display_retries = 0;
 144     }
 145   }
 146 }
 147 #endif
 148
 149 }  // namespace
 150
 151 // static
 152 const int RenderViewHostImpl::kUnloadTimeoutMS = 1000;
 153
 154 ///////////////////////////////////////////////////////////////////////////////
 155 // RenderViewHost, public:
 156
 157 // static
 158 bool RenderViewHostImpl::IsRVHStateActive(RenderViewHostImplState rvh_state) {
 159   if (rvh_state == STATE_DEFAULT ||
 160       rvh_state == STATE_WAITING_FOR_UNLOAD_ACK ||
 161       rvh_state == STATE_WAITING_FOR_COMMIT ||
 162       rvh_state == STATE_WAITING_FOR_CLOSE)
 163     return true;
 164   return false;
 165 }
 166
 167 // static
 168 RenderViewHost* RenderViewHost::FromID(int render_process_id,
 169                                        int render_view_id) {
 170   return RenderViewHostImpl::FromID(render_process_id, render_view_id);
 171 }
 172
 173 // static
 174 RenderViewHost* RenderViewHost::From(RenderWidgetHost* rwh) {
 175   DCHECK(rwh->IsRenderView());
 176   return static_cast<RenderViewHostImpl*>(RenderWidgetHostImpl::From(rwh));
 177 }
 178
 179 ///////////////////////////////////////////////////////////////////////////////
 180 // RenderViewHostImpl, public:
 181
 182 // static
 183 RenderViewHostImpl* RenderViewHostImpl::FromID(int render_process_id,
 184                                                int render_view_id) {
 185   RenderWidgetHost* widget =
 186       RenderWidgetHost::FromID(render_process_id, render_view_id);
 187   if (!widget || !widget->IsRenderView())
 188     return NULL;
 189   return static_cast<RenderViewHostImpl*>(RenderWidgetHostImpl::From(widget));
 190 }
 191
 192 RenderViewHostImpl::RenderViewHostImpl(
 193     SiteInstance* instance,
 194     RenderViewHostDelegate* delegate,
 195     RenderWidgetHostDelegate* widget_delegate,
 196     int routing_id,
 197     int main_frame_routing_id,
 198     bool swapped_out,
 199     bool hidden)
 200     : RenderWidgetHostImpl(widget_delegate,
 201                            instance->GetProcess(),
 202                            routing_id,
 203                            hidden),
 204       frames_ref_count_(0),
 205       delegate_(delegate),
 206       instance_(static_cast<SiteInstanceImpl*>(instance)),
 207       waiting_for_drag_context_response_(false),
 208       enabled_bindings_(0),
 209       navigations_suspended_(false),
 210       main_frame_routing_id_(main_frame_routing_id),
 211       run_modal_reply_msg_(NULL),
 212       run_modal_opener_id_(MSG_ROUTING_NONE),
 213       is_waiting_for_beforeunload_ack_(false),
 214       unload_ack_is_for_cross_site_transition_(false),
 215       sudden_termination_allowed_(false),
 216       render_view_termination_status_(base::TERMINATION_STATUS_STILL_RUNNING),
 217       virtual_keyboard_requested_(false),
 218       weak_factory_(this) {
 219   DCHECK(instance_.get());
 220   CHECK(delegate_);  // http://crbug.com/82827
 221
 222   GetProcess()->EnableSendQueue();
 223
 224   if (swapped_out) {
 225     rvh_state_ = STATE_SWAPPED_OUT;
 226   } else {
 227     rvh_state_ = STATE_DEFAULT;
 228     instance_->increment_active_view_count();
 229   }
 230
 231   if (ResourceDispatcherHostImpl::Get()) {
 232     BrowserThread::PostTask(
 233         BrowserThread::IO, FROM_HERE,
 234         base::Bind(&ResourceDispatcherHostImpl::OnRenderViewHostCreated,
 235                    base::Unretained(ResourceDispatcherHostImpl::Get()),
 236                    GetProcess()->GetID(), GetRoutingID()));
 237   }
 238
 239 #if defined(OS_ANDROID)
 240   media_player_manager_.reset(BrowserMediaPlayerManager::Create(this));
 241 #endif
 242
 243   unload_event_monitor_timeout_.reset(new TimeoutMonitor(base::Bind(
 244       &RenderViewHostImpl::OnSwappedOut, weak_factory_.GetWeakPtr(), true)));
 245 }
 246
 247 RenderViewHostImpl::~RenderViewHostImpl() {
 248   if (ResourceDispatcherHostImpl::Get()) {
 249     BrowserThread::PostTask(
 250         BrowserThread::IO, FROM_HERE,
 251         base::Bind(&ResourceDispatcherHostImpl::OnRenderViewHostDeleted,
 252                    base::Unretained(ResourceDispatcherHostImpl::Get()),
 253                    GetProcess()->GetID(), GetRoutingID()));
 254   }
 255
 256   delegate_->RenderViewDeleted(this);
 257
 258   // Be sure to clean up any leftover state from cross-site requests.
 259   CrossSiteRequestManager::GetInstance()->SetHasPendingCrossSiteRequest(
 260       GetProcess()->GetID(), GetRoutingID(), false);
 261
 262   // If this was swapped out, it already decremented the active view
 263   // count of the SiteInstance it belongs to.
 264   if (IsRVHStateActive(rvh_state_))
 265     instance_->decrement_active_view_count();
 266 }
 267
 268 RenderViewHostDelegate* RenderViewHostImpl::GetDelegate() const {
 269   return delegate_;
 270 }
 271
 272 SiteInstance* RenderViewHostImpl::GetSiteInstance() const {
 273   return instance_.get();
 274 }
 275
 276 bool RenderViewHostImpl::CreateRenderView(
 277     const base::string16& frame_name,
 278     int opener_route_id,
 279     int32 max_page_id,
 280     bool window_was_created_with_opener) {
 281   TRACE_EVENT0("renderer_host", "RenderViewHostImpl::CreateRenderView");
 282   DCHECK(!IsRenderViewLive()) << "Creating view twice";
 283
 284   // The process may (if we're sharing a process with another host that already
 285   // initialized it) or may not (we have our own process or the old process
 286   // crashed) have been initialized. Calling Init multiple times will be
 287   // ignored, so this is safe.
 288   if (!GetProcess()->Init())
 289     return false;
 290   DCHECK(GetProcess()->HasConnection());
 291   DCHECK(GetProcess()->GetBrowserContext());
 292
 293   renderer_initialized_ = true;
 294
 295   GpuSurfaceTracker::Get()->SetSurfaceHandle(
 296       surface_id(), GetCompositingSurface());
 297
 298   // Ensure the RenderView starts with a next_page_id larger than any existing
 299   // page ID it might be asked to render.
 300   int32 next_page_id = 1;
 301   if (max_page_id > -1)
 302     next_page_id = max_page_id + 1;
 303
 304   ViewMsg_New_Params params;
 305   params.renderer_preferences =
 306       delegate_->GetRendererPrefs(GetProcess()->GetBrowserContext());
 307   params.web_preferences = delegate_->GetWebkitPrefs();
 308   params.view_id = GetRoutingID();
 309   params.main_frame_routing_id = main_frame_routing_id_;
 310   params.surface_id = surface_id();
 311   params.session_storage_namespace_id =
 312       delegate_->GetSessionStorageNamespace(instance_)->id();
 313   params.frame_name = frame_name;
 314   // Ensure the RenderView sets its opener correctly.
 315   params.opener_route_id = opener_route_id;
 316   params.swapped_out = !IsRVHStateActive(rvh_state_);
 317   params.hidden = is_hidden();
 318   params.never_visible = delegate_->IsNeverVisible();
 319   params.window_was_created_with_opener = window_was_created_with_opener;
 320   params.next_page_id = next_page_id;
 321   GetWebScreenInfo(&params.screen_info);
 322   params.accessibility_mode = accessibility_mode();
 323
 324   Send(new ViewMsg_New(params));
 325
 326   // If it's enabled, tell the renderer to set up the Javascript bindings for
 327   // sending messages back to the browser.
 328   if (GetProcess()->IsGuest())
 329     DCHECK_EQ(0, enabled_bindings_);
 330   Send(new ViewMsg_AllowBindings(GetRoutingID(), enabled_bindings_));
 331   // Let our delegate know that we created a RenderView.
 332   delegate_->RenderViewCreated(this);
 333
 334   return true;
 335 }
 336
 337 bool RenderViewHostImpl::IsRenderViewLive() const {
 338   return GetProcess()->HasConnection() && renderer_initialized_;
 339 }
 340
 341 void RenderViewHostImpl::SyncRendererPrefs() {
 342   Send(new ViewMsg_SetRendererPrefs(GetRoutingID(),
 343                                     delegate_->GetRendererPrefs(
 344                                         GetProcess()->GetBrowserContext())));
 345 }
 346
 347 WebPreferences RenderViewHostImpl::GetWebkitPrefs(const GURL& url) {
 348   TRACE_EVENT0("browser", "RenderViewHostImpl::GetWebkitPrefs");
 349   WebPreferences prefs;
 350
 351   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 352
 353   prefs.javascript_enabled =
 354       !command_line.HasSwitch(switches::kDisableJavaScript);
 355   prefs.web_security_enabled =
 356       !command_line.HasSwitch(switches::kDisableWebSecurity);
 357   prefs.plugins_enabled =
 358       !command_line.HasSwitch(switches::kDisablePlugins);
 359   prefs.java_enabled =
 360       !command_line.HasSwitch(switches::kDisableJava);
 361
 362   prefs.remote_fonts_enabled =
 363       !command_line.HasSwitch(switches::kDisableRemoteFonts);
 364   prefs.xslt_enabled =
 365       !command_line.HasSwitch(switches::kDisableXSLT);
 366   prefs.xss_auditor_enabled =
 367       !command_line.HasSwitch(switches::kDisableXSSAuditor);
 368   prefs.application_cache_enabled =
 369       !command_line.HasSwitch(switches::kDisableApplicationCache);
 370
 371   prefs.local_storage_enabled =
 372       !command_line.HasSwitch(switches::kDisableLocalStorage);
 373   prefs.databases_enabled =
 374       !command_line.HasSwitch(switches::kDisableDatabases);
 375 #if defined(OS_ANDROID)
 376   // WebAudio is enabled by default on x86 and ARM.
 377   prefs.webaudio_enabled =
 378       !command_line.HasSwitch(switches::kDisableWebAudio);
 379 #endif
 380
 381   prefs.experimental_webgl_enabled =
 382       GpuProcessHost::gpu_enabled() &&
 383       !command_line.HasSwitch(switches::kDisable3DAPIs) &&
 384       !command_line.HasSwitch(switches::kDisableExperimentalWebGL);
 385
 386   prefs.pepper_3d_enabled =
 387       !command_line.HasSwitch(switches::kDisablePepper3d);
 388
 389   prefs.flash_3d_enabled =
 390       GpuProcessHost::gpu_enabled() &&
 391       !command_line.HasSwitch(switches::kDisableFlash3d);
 392   prefs.flash_stage3d_enabled =
 393       GpuProcessHost::gpu_enabled() &&
 394       !command_line.HasSwitch(switches::kDisableFlashStage3d);
 395   prefs.flash_stage3d_baseline_enabled =
 396       GpuProcessHost::gpu_enabled() &&
 397       !command_line.HasSwitch(switches::kDisableFlashStage3d);
 398
 399   prefs.gl_multisampling_enabled =
 400       !command_line.HasSwitch(switches::kDisableGLMultisampling);
 401   prefs.privileged_webgl_extensions_enabled =
 402       command_line.HasSwitch(switches::kEnablePrivilegedWebGLExtensions);
 403   prefs.site_specific_quirks_enabled =
 404       !command_line.HasSwitch(switches::kDisableSiteSpecificQuirks);
 405   prefs.allow_file_access_from_file_urls =
 406       command_line.HasSwitch(switches::kAllowFileAccessFromFiles);
 407
 408   prefs.layer_squashing_enabled = true;
 409   if (command_line.HasSwitch(switches::kEnableLayerSquashing))
 410       prefs.layer_squashing_enabled = true;
 411   if (command_line.HasSwitch(switches::kDisableLayerSquashing))
 412       prefs.layer_squashing_enabled = false;
 413
 414   prefs.accelerated_2d_canvas_enabled =
 415       GpuProcessHost::gpu_enabled() &&
 416       !command_line.HasSwitch(switches::kDisableAccelerated2dCanvas);
 417   prefs.antialiased_2d_canvas_disabled =
 418       command_line.HasSwitch(switches::kDisable2dCanvasAntialiasing);
 419   prefs.accelerated_2d_canvas_msaa_sample_count =
 420       atoi(command_line.GetSwitchValueASCII(
 421       switches::kAcceleratedCanvas2dMSAASampleCount).c_str());
 422   prefs.deferred_filters_enabled =
 423       !command_line.HasSwitch(switches::kDisableDeferredFilters);
 424   prefs.container_culling_enabled =
 425       command_line.HasSwitch(switches::kEnableContainerCulling);
 426   prefs.lazy_layout_enabled =
 427       command_line.HasSwitch(switches::kEnableExperimentalWebPlatformFeatures);
 428   prefs.region_based_columns_enabled =
 429       command_line.HasSwitch(switches::kEnableRegionBasedColumns);
 430
 431   if (IsPinchVirtualViewportEnabled()) {
 432     prefs.pinch_virtual_viewport_enabled = true;
 433     prefs.pinch_overlay_scrollbar_thickness = 10;
 434   }
 435   prefs.use_solid_color_scrollbars = ui::IsOverlayScrollbarEnabled();
 436
 437 #if defined(OS_ANDROID)
 438   prefs.user_gesture_required_for_media_playback = !command_line.HasSwitch(
 439       switches::kDisableGestureRequirementForMediaPlayback);
 440 #endif
 441
 442   prefs.touch_enabled = ui::AreTouchEventsEnabled();
 443   prefs.device_supports_touch = prefs.touch_enabled &&
 444       ui::IsTouchDevicePresent();
 445 #if defined(OS_ANDROID)
 446   prefs.device_supports_mouse = false;
 447 #endif
 448
 449   prefs.pointer_events_max_touch_points = ui::MaxTouchPoints();
 450
 451   prefs.touch_adjustment_enabled =
 452       !command_line.HasSwitch(switches::kDisableTouchAdjustment);
 453   prefs.compositor_touch_hit_testing =
 454       !command_line.HasSwitch(cc::switches::kDisableCompositorTouchHitTesting);
 455
 456 #if defined(OS_MACOSX) || defined(OS_CHROMEOS)
 457   bool default_enable_scroll_animator = true;
 458 #else
 459   bool default_enable_scroll_animator = false;
 460 #endif
 461   prefs.enable_scroll_animator = default_enable_scroll_animator;
 462   if (command_line.HasSwitch(switches::kEnableSmoothScrolling))
 463     prefs.enable_scroll_animator = true;
 464   if (command_line.HasSwitch(switches::kDisableSmoothScrolling))
 465     prefs.enable_scroll_animator = false;
 466
 467   // Certain GPU features might have been blacklisted.
 468   GpuDataManagerImpl::GetInstance()->UpdateRendererWebPrefs(&prefs);
 469
 470   if (ChildProcessSecurityPolicyImpl::GetInstance()->HasWebUIBindings(
 471           GetProcess()->GetID())) {
 472     prefs.loads_images_automatically = true;
 473     prefs.javascript_enabled = true;
 474   }
 475
 476   prefs.is_online = !net::NetworkChangeNotifier::IsOffline();
 477
 478   prefs.fixed_position_creates_stacking_context = !command_line.HasSwitch(
 479       switches::kDisableFixedPositionCreatesStackingContext);
 480
 481   prefs.gesture_tap_highlight_enabled = !command_line.HasSwitch(
 482       switches::kDisableGestureTapHighlight);
 483
 484   prefs.number_of_cpu_cores = base::SysInfo::NumberOfProcessors();
 485
 486   prefs.viewport_meta_enabled =
 487       command_line.HasSwitch(switches::kEnableViewportMeta);
 488
 489   prefs.viewport_enabled =
 490       command_line.HasSwitch(switches::kEnableViewport) ||
 491       prefs.viewport_meta_enabled;
 492
 493   prefs.main_frame_resizes_are_orientation_changes =
 494       command_line.HasSwitch(switches::kMainFrameResizesAreOrientationChanges);
 495
 496   prefs.deferred_image_decoding_enabled =
 497       command_line.HasSwitch(switches::kEnableDeferredImageDecoding) ||
 498       content::IsImplSidePaintingEnabled();
 499
 500   prefs.spatial_navigation_enabled = command_line.HasSwitch(
 501       switches::kEnableSpatialNavigation);
 502
 503   GetContentClient()->browser()->OverrideWebkitPrefs(this, url, &prefs);
 504   return prefs;
 505 }
 506
 507 void RenderViewHostImpl::Navigate(const FrameMsg_Navigate_Params& params) {
 508   TRACE_EVENT0("renderer_host", "RenderViewHostImpl::Navigate");
 509   delegate_->GetFrameTree()->GetMainFrame()->Navigate(params);
 510 }
 511
 512 void RenderViewHostImpl::NavigateToURL(const GURL& url) {
 513   delegate_->GetFrameTree()->GetMainFrame()->NavigateToURL(url);
 514 }
 515
 516 void RenderViewHostImpl::SetNavigationsSuspended(
 517     bool suspend,
 518     const base::TimeTicks& proceed_time) {
 519   // This should only be called to toggle the state.
 520   DCHECK(navigations_suspended_ != suspend);
 521
 522   navigations_suspended_ = suspend;
 523   if (!suspend && suspended_nav_params_) {
 524     // There's navigation message params waiting to be sent.  Now that we're not
 525     // suspended anymore, resume navigation by sending them.  If we were swapped
 526     // out, we should also stop filtering out the IPC messages now.
 527     SetState(STATE_DEFAULT);
 528
 529     DCHECK(!proceed_time.is_null());
 530     suspended_nav_params_->browser_navigation_start = proceed_time;
 531     Send(new FrameMsg_Navigate(
 532         main_frame_routing_id_, *suspended_nav_params_.get()));
 533     suspended_nav_params_.reset();
 534   }
 535 }
 536
 537 void RenderViewHostImpl::CancelSuspendedNavigations() {
 538   // Clear any state if a pending navigation is canceled or pre-empted.
 539   if (suspended_nav_params_)
 540     suspended_nav_params_.reset();
 541   navigations_suspended_ = false;
 542 }
 543
 544 void RenderViewHostImpl::SuppressDialogsUntilSwapOut() {
 545   Send(new ViewMsg_SuppressDialogsUntilSwapOut(GetRoutingID()));
 546 }
 547
 548 void RenderViewHostImpl::OnSwappedOut(bool timed_out) {
 549   // Ignore spurious swap out ack.
 550   if (!IsWaitingForUnloadACK())
 551     return;
 552   unload_event_monitor_timeout_->Stop();
 553   if (timed_out) {
 554     base::ProcessHandle process_handle = GetProcess()->GetHandle();
 555     int views = 0;
 556
 557     // Count the number of active widget hosts for the process, which
 558     // is equivalent to views using the process as of this writing.
 559     scoped_ptr<RenderWidgetHostIterator> widgets(
 560       RenderWidgetHost::GetRenderWidgetHosts());
 561     while (RenderWidgetHost* widget = widgets->GetNextHost()) {
 562       if (widget->GetProcess()->GetID() == GetProcess()->GetID())
 563         ++views;
 564     }
 565
 566     if (!RenderProcessHost::run_renderer_in_process() &&
 567         process_handle && views <= 1) {
 568       // The process can safely be terminated, only if WebContents sets
 569       // SuddenTerminationAllowed, which indicates that the timer has expired.
 570       // This is not the case if we load data URLs or about:blank. The reason
 571       // is that those have no network requests and this code is hit without
 572       // setting the unresponsiveness timer. This allows a corner case where a
 573       // navigation to a data URL will leave a process running, if the
 574       // beforeunload handler completes fine, but the unload handler hangs.
 575       // At this time, the complexity to solve this edge case is not worthwhile.
 576       if (SuddenTerminationAllowed()) {
 577         // We should kill the process, but for now, just log the data so we can
 578         // diagnose the kill rate and investigate if separate timer is needed.
 579         // http://crbug.com/104346.
 580
 581         // Log a histogram point to help us diagnose how many of those kills
 582         // we have performed. 1 is the enum value for RendererType Normal for
 583         // the histogram.
 584         UMA_HISTOGRAM_PERCENTAGE(
 585             "BrowserRenderProcessHost.ChildKillsUnresponsive", 1);
 586       }
 587     }
 588   }
 589
 590   switch (rvh_state_) {
 591     case STATE_WAITING_FOR_UNLOAD_ACK:
 592       SetState(STATE_WAITING_FOR_COMMIT);
 593       break;
 594     case STATE_PENDING_SWAP_OUT:
 595       SetState(STATE_SWAPPED_OUT);
 596       break;
 597     case STATE_PENDING_SHUTDOWN:
 598       DCHECK(!pending_shutdown_on_swap_out_.is_null());
 599       pending_shutdown_on_swap_out_.Run();
 600       break;
 601     default:
 602       NOTREACHED();
 603   }
 604 }
 605
 606 void RenderViewHostImpl::WasSwappedOut(
 607     const base::Closure& pending_delete_on_swap_out) {
 608   Send(new ViewMsg_WasSwappedOut(GetRoutingID()));
 609   if (rvh_state_ == STATE_WAITING_FOR_UNLOAD_ACK) {
 610     SetState(STATE_PENDING_SWAP_OUT);
 611     if (!instance_->active_view_count())
 612       SetPendingShutdown(pending_delete_on_swap_out);
 613   } else if (rvh_state_ == STATE_WAITING_FOR_COMMIT) {
 614     SetState(STATE_SWAPPED_OUT);
 615   } else if (rvh_state_ == STATE_DEFAULT) {
 616     // When the RenderView is not live, the RenderFrameHostManager will call
 617     // CommitPending directly, without calling SwapOut on the old RVH. This will
 618     // cause WasSwappedOut to be called directly on the live old RVH.
 619     DCHECK(!IsRenderViewLive());
 620     SetState(STATE_SWAPPED_OUT);
 621   } else {
 622     NOTREACHED();
 623   }
 624 }
 625
 626 void RenderViewHostImpl::SetPendingShutdown(const base::Closure& on_swap_out) {
 627   pending_shutdown_on_swap_out_ = on_swap_out;
 628   SetState(STATE_PENDING_SHUTDOWN);
 629 }
 630
 631 void RenderViewHostImpl::ClosePage() {
 632   SetState(STATE_WAITING_FOR_CLOSE);
 633   StartHangMonitorTimeout(TimeDelta::FromMilliseconds(kUnloadTimeoutMS));
 634
 635   if (IsRenderViewLive()) {
 636     // Since we are sending an IPC message to the renderer, increase the event
 637     // count to prevent the hang monitor timeout from being stopped by input
 638     // event acknowledgements.
 639     increment_in_flight_event_count();
 640
 641     // TODO(creis): Should this be moved to Shutdown?  It may not be called for
 642     // RenderViewHosts that have been swapped out.
 643     NotificationService::current()->Notify(
 644         NOTIFICATION_RENDER_VIEW_HOST_WILL_CLOSE_RENDER_VIEW,
 645         Source<RenderViewHost>(this),
 646         NotificationService::NoDetails());
 647
 648     Send(new ViewMsg_ClosePage(GetRoutingID()));
 649   } else {
 650     // This RenderViewHost doesn't have a live renderer, so just skip the unload
 651     // event and close the page.
 652     ClosePageIgnoringUnloadEvents();
 653   }
 654 }
 655
 656 void RenderViewHostImpl::ClosePageIgnoringUnloadEvents() {
 657   StopHangMonitorTimeout();
 658   is_waiting_for_beforeunload_ack_ = false;
 659
 660   sudden_termination_allowed_ = true;
 661   delegate_->Close(this);
 662 }
 663
 664 bool RenderViewHostImpl::HasPendingCrossSiteRequest() {
 665   return CrossSiteRequestManager::GetInstance()->HasPendingCrossSiteRequest(
 666       GetProcess()->GetID(), GetRoutingID());
 667 }
 668
 669 void RenderViewHostImpl::SetHasPendingCrossSiteRequest(
 670     bool has_pending_request) {
 671   CrossSiteRequestManager::GetInstance()->SetHasPendingCrossSiteRequest(
 672       GetProcess()->GetID(), GetRoutingID(), has_pending_request);
 673 }
 674
 675 void RenderViewHostImpl::SetWebUIHandle(mojo::ScopedMessagePipeHandle handle) {
 676   // Never grant any bindings to browser plugin guests.
 677   if (GetProcess()->IsGuest()) {
 678     NOTREACHED() << "Never grant bindings to a guest process.";
 679     return;
 680   }
 681
 682   if ((enabled_bindings_ & BINDINGS_POLICY_WEB_UI) == 0) {
 683     NOTREACHED() << "You must grant bindings before setting the handle";
 684     return;
 685   }
 686
 687   DCHECK(renderer_initialized_);
 688
 689   mojo::InterfacePipe<WebUISetup, mojo::AnyInterface> pipe;
 690   mojo::RemotePtr<WebUISetup> web_ui_setup(pipe.handle_to_self.Pass(), NULL);
 691   web_ui_setup->SetWebUIHandle(GetRoutingID(), handle.Pass());
 692
 693   static_cast<RenderProcessHostImpl*>(GetProcess())->ConnectTo(
 694       kRendererService_WebUISetup, pipe.handle_to_peer.Pass());
 695 }
 696
 697 #if defined(OS_ANDROID)
 698 void RenderViewHostImpl::ActivateNearestFindResult(int request_id,
 699                                                    float x,
 700                                                    float y) {
 701   Send(new InputMsg_ActivateNearestFindResult(GetRoutingID(),
 702                                               request_id, x, y));
 703 }
 704
 705 void RenderViewHostImpl::RequestFindMatchRects(int current_version) {
 706   Send(new ViewMsg_FindMatchRects(GetRoutingID(), current_version));
 707 }
 708 #endif
 709
 710 void RenderViewHostImpl::DragTargetDragEnter(
 711     const DropData& drop_data,
 712     const gfx::Point& client_pt,
 713     const gfx::Point& screen_pt,
 714     WebDragOperationsMask operations_allowed,
 715     int key_modifiers) {
 716   const int renderer_id = GetProcess()->GetID();
 717   ChildProcessSecurityPolicyImpl* policy =
 718       ChildProcessSecurityPolicyImpl::GetInstance();
 719
 720   // The URL could have been cobbled together from any highlighted text string,
 721   // and can't be interpreted as a capability.
 722   DropData filtered_data(drop_data);
 723   GetProcess()->FilterURL(true, &filtered_data.url);
 724   if (drop_data.did_originate_from_renderer) {
 725     filtered_data.filenames.clear();
 726   }
 727
 728   // The filenames vector, on the other hand, does represent a capability to
 729   // access the given files.
 730   fileapi::IsolatedContext::FileInfoSet files;
 731   for (std::vector<ui::FileInfo>::iterator iter(
 732            filtered_data.filenames.begin());
 733        iter != filtered_data.filenames.end();
 734        ++iter) {
 735     // A dragged file may wind up as the value of an input element, or it
 736     // may be used as the target of a navigation instead.  We don't know
 737     // which will happen at this point, so generously grant both access
 738     // and request permissions to the specific file to cover both cases.
 739     // We do not give it the permission to request all file:// URLs.
 740
 741     // Make sure we have the same display_name as the one we register.
 742     if (iter->display_name.empty()) {
 743       std::string name;
 744       files.AddPath(iter->path, &name);
 745       iter->display_name = base::FilePath::FromUTF8Unsafe(name);
 746     } else {
 747       files.AddPathWithName(iter->path, iter->display_name.AsUTF8Unsafe());
 748     }
 749
 750     policy->GrantRequestSpecificFileURL(renderer_id,
 751                                         net::FilePathToFileURL(iter->path));
 752
 753     // If the renderer already has permission to read these paths, we don't need
 754     // to re-grant them. This prevents problems with DnD for files in the CrOS
 755     // file manager--the file manager already had read/write access to those
 756     // directories, but dragging a file would cause the read/write access to be
 757     // overwritten with read-only access, making them impossible to delete or
 758     // rename until the renderer was killed.
 759     if (!policy->CanReadFile(renderer_id, iter->path))
 760       policy->GrantReadFile(renderer_id, iter->path);
 761   }
 762
 763   fileapi::IsolatedContext* isolated_context =
 764       fileapi::IsolatedContext::GetInstance();
 765   DCHECK(isolated_context);
 766   std::string filesystem_id = isolated_context->RegisterDraggedFileSystem(
 767       files);
 768   if (!filesystem_id.empty()) {
 769     // Grant the permission iff the ID is valid.
 770     policy->GrantReadFileSystem(renderer_id, filesystem_id);
 771   }
 772   filtered_data.filesystem_id = base::UTF8ToUTF16(filesystem_id);
 773
 774   fileapi::FileSystemContext* file_system_context =
 775       BrowserContext::GetStoragePartition(
 776           GetProcess()->GetBrowserContext(),
 777           GetSiteInstance())->GetFileSystemContext();
 778   for (size_t i = 0; i < filtered_data.file_system_files.size(); ++i) {
 779     fileapi::FileSystemURL file_system_url =
 780         file_system_context->CrackURL(filtered_data.file_system_files[i].url);
 781
 782     std::string register_name;
 783     std::string filesystem_id = isolated_context->RegisterFileSystemForPath(
 784         file_system_url.type(), file_system_url.path(), &register_name);
 785     policy->GrantReadFileSystem(renderer_id, filesystem_id);
 786
 787     // Note: We are using the origin URL provided by the sender here. It may be
 788     // different from the receiver's.
 789     filtered_data.file_system_files[i].url = GURL(
 790         fileapi::GetIsolatedFileSystemRootURIString(
 791             file_system_url.origin(),
 792             filesystem_id,
 793             std::string()).append(register_name));
 794   }
 795
 796   Send(new DragMsg_TargetDragEnter(GetRoutingID(), filtered_data, client_pt,
 797                                    screen_pt, operations_allowed,
 798                                    key_modifiers));
 799 }
 800
 801 void RenderViewHostImpl::DragTargetDragOver(
 802     const gfx::Point& client_pt,
 803     const gfx::Point& screen_pt,
 804     WebDragOperationsMask operations_allowed,
 805     int key_modifiers) {
 806   Send(new DragMsg_TargetDragOver(GetRoutingID(), client_pt, screen_pt,
 807                                   operations_allowed, key_modifiers));
 808 }
 809
 810 void RenderViewHostImpl::DragTargetDragLeave() {
 811   Send(new DragMsg_TargetDragLeave(GetRoutingID()));
 812 }
 813
 814 void RenderViewHostImpl::DragTargetDrop(
 815     const gfx::Point& client_pt,
 816     const gfx::Point& screen_pt,
 817     int key_modifiers) {
 818   Send(new DragMsg_TargetDrop(GetRoutingID(), client_pt, screen_pt,
 819                               key_modifiers));
 820 }
 821
 822 void RenderViewHostImpl::DragSourceEndedAt(
 823     int client_x, int client_y, int screen_x, int screen_y,
 824     WebDragOperation operation) {
 825   Send(new DragMsg_SourceEnded(GetRoutingID(),
 826                                gfx::Point(client_x, client_y),
 827                                gfx::Point(screen_x, screen_y),
 828                                operation));
 829 }
 830
 831 void RenderViewHostImpl::DragSourceSystemDragEnded() {
 832   Send(new DragMsg_SourceSystemDragEnded(GetRoutingID()));
 833 }
 834
 835 RenderFrameHost* RenderViewHostImpl::GetMainFrame() {
 836   return RenderFrameHost::FromID(GetProcess()->GetID(), main_frame_routing_id_);
 837 }
 838
 839 void RenderViewHostImpl::AllowBindings(int bindings_flags) {
 840   // Never grant any bindings to browser plugin guests.
 841   if (GetProcess()->IsGuest()) {
 842     NOTREACHED() << "Never grant bindings to a guest process.";
 843     return;
 844   }
 845
 846   // Ensure we aren't granting WebUI bindings to a process that has already
 847   // been used for non-privileged views.
 848   if (bindings_flags & BINDINGS_POLICY_WEB_UI &&
 849       GetProcess()->HasConnection() &&
 850       !ChildProcessSecurityPolicyImpl::GetInstance()->HasWebUIBindings(
 851           GetProcess()->GetID())) {
 852     // This process has no bindings yet. Make sure it does not have more
 853     // than this single active view.
 854     RenderProcessHostImpl* process =
 855         static_cast<RenderProcessHostImpl*>(GetProcess());
 856     // --single-process only has one renderer.
 857     if (process->GetActiveViewCount() > 1 &&
 858         !CommandLine::ForCurrentProcess()->HasSwitch(switches::kSingleProcess))
 859       return;
 860   }
 861
 862   if (bindings_flags & BINDINGS_POLICY_WEB_UI) {
 863     ChildProcessSecurityPolicyImpl::GetInstance()->GrantWebUIBindings(
 864         GetProcess()->GetID());
 865   }
 866
 867   enabled_bindings_ |= bindings_flags;
 868   if (renderer_initialized_)
 869     Send(new ViewMsg_AllowBindings(GetRoutingID(), enabled_bindings_));
 870 }
 871
 872 int RenderViewHostImpl::GetEnabledBindings() const {
 873   return enabled_bindings_;
 874 }
 875
 876 void RenderViewHostImpl::SetWebUIProperty(const std::string& name,
 877                                           const std::string& value) {
 878   // This is a sanity check before telling the renderer to enable the property.
 879   // It could lie and send the corresponding IPC messages anyway, but we will
 880   // not act on them if enabled_bindings_ doesn't agree. If we get here without
 881   // WebUI bindings, kill the renderer process.
 882   if (enabled_bindings_ & BINDINGS_POLICY_WEB_UI) {
 883     Send(new ViewMsg_SetWebUIProperty(GetRoutingID(), name, value));
 884   } else {
 885     RecordAction(
 886         base::UserMetricsAction("BindingsMismatchTerminate_RVH_WebUI"));
 887     base::KillProcess(
 888         GetProcess()->GetHandle(), content::RESULT_CODE_KILLED, false);
 889   }
 890 }
 891
 892 void RenderViewHostImpl::GotFocus() {
 893   RenderWidgetHostImpl::GotFocus();  // Notifies the renderer it got focus.
 894
 895   RenderViewHostDelegateView* view = delegate_->GetDelegateView();
 896   if (view)
 897     view->GotFocus();
 898 }
 899
 900 void RenderViewHostImpl::LostCapture() {
 901   RenderWidgetHostImpl::LostCapture();
 902   delegate_->LostCapture();
 903 }
 904
 905 void RenderViewHostImpl::LostMouseLock() {
 906   RenderWidgetHostImpl::LostMouseLock();
 907   delegate_->LostMouseLock();
 908 }
 909
 910 void RenderViewHostImpl::SetInitialFocus(bool reverse) {
 911   Send(new ViewMsg_SetInitialFocus(GetRoutingID(), reverse));
 912 }
 913
 914 void RenderViewHostImpl::FilesSelectedInChooser(
 915     const std::vector<ui::SelectedFileInfo>& files,
 916     FileChooserParams::Mode permissions) {
 917   // Grant the security access requested to the given files.
 918   for (size_t i = 0; i < files.size(); ++i) {
 919     const ui::SelectedFileInfo& file = files[i];
 920     if (permissions == FileChooserParams::Save) {
 921       ChildProcessSecurityPolicyImpl::GetInstance()->GrantCreateReadWriteFile(
 922           GetProcess()->GetID(), file.local_path);
 923     } else {
 924       ChildProcessSecurityPolicyImpl::GetInstance()->GrantReadFile(
 925           GetProcess()->GetID(), file.local_path);
 926     }
 927   }
 928   Send(new ViewMsg_RunFileChooserResponse(GetRoutingID(), files));
 929 }
 930
 931 void RenderViewHostImpl::DirectoryEnumerationFinished(
 932     int request_id,
 933     const std::vector<base::FilePath>& files) {
 934   // Grant the security access requested to the given files.
 935   for (std::vector<base::FilePath>::const_iterator file = files.begin();
 936        file != files.end(); ++file) {
 937     ChildProcessSecurityPolicyImpl::GetInstance()->GrantReadFile(
 938         GetProcess()->GetID(), *file);
 939   }
 940   Send(new ViewMsg_EnumerateDirectoryResponse(GetRoutingID(),
 941                                               request_id,
 942                                               files));
 943 }
 944
 945 void RenderViewHostImpl::LoadStateChanged(
 946     const GURL& url,
 947     const net::LoadStateWithParam& load_state,
 948     uint64 upload_position,
 949     uint64 upload_size) {
 950   delegate_->LoadStateChanged(url, load_state, upload_position, upload_size);
 951 }
 952
 953 bool RenderViewHostImpl::SuddenTerminationAllowed() const {
 954   return sudden_termination_allowed_ ||
 955       GetProcess()->SuddenTerminationAllowed();
 956 }
 957
 958 ///////////////////////////////////////////////////////////////////////////////
 959 // RenderViewHostImpl, IPC message handlers:
 960
 961 bool RenderViewHostImpl::OnMessageReceived(const IPC::Message& msg) {
 962   if (!BrowserMessageFilter::CheckCanDispatchOnUI(msg, this))
 963     return true;
 964
 965   // Filter out most IPC messages if this renderer is swapped out.
 966   // We still want to handle certain ACKs to keep our state consistent.
 967   if (IsSwappedOut()) {
 968     if (!SwappedOutMessages::CanHandleWhileSwappedOut(msg)) {
 969       // If this is a synchronous message and we decided not to handle it,
 970       // we must send an error reply, or else the renderer will be stuck
 971       // and won't respond to future requests.
 972       if (msg.is_sync()) {
 973         IPC::Message* reply = IPC::SyncMessage::GenerateReply(&msg);
 974         reply->set_reply_error();
 975         Send(reply);
 976       }
 977       // Don't continue looking for someone to handle it.
 978       return true;
 979     }
 980   }
 981
 982   if (delegate_->OnMessageReceived(this, msg))
 983     return true;
 984
 985   bool handled = true;
 986   bool msg_is_ok = true;
 987   IPC_BEGIN_MESSAGE_MAP_EX(RenderViewHostImpl, msg, msg_is_ok)
 988     IPC_MESSAGE_HANDLER(ViewHostMsg_ShowView, OnShowView)
 989     IPC_MESSAGE_HANDLER(ViewHostMsg_ShowWidget, OnShowWidget)
 990     IPC_MESSAGE_HANDLER(ViewHostMsg_ShowFullscreenWidget,
 991                         OnShowFullscreenWidget)
 992     IPC_MESSAGE_HANDLER_DELAY_REPLY(ViewHostMsg_RunModal, OnRunModal)
 993     IPC_MESSAGE_HANDLER(ViewHostMsg_RenderViewReady, OnRenderViewReady)
 994     IPC_MESSAGE_HANDLER(ViewHostMsg_RenderProcessGone, OnRenderProcessGone)
 995     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateState, OnUpdateState)
 996     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateTitle, OnUpdateTitle)
 997     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateEncoding, OnUpdateEncoding)
 998     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateTargetURL, OnUpdateTargetURL)
 999     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateInspectorSetting,
1000                         OnUpdateInspectorSetting)
1001     IPC_MESSAGE_HANDLER(ViewHostMsg_Close, OnClose)
1002     IPC_MESSAGE_HANDLER(ViewHostMsg_RequestMove, OnRequestMove)
1003     IPC_MESSAGE_HANDLER(ViewHostMsg_DidChangeLoadProgress,
1004                         OnDidChangeLoadProgress)
1005     IPC_MESSAGE_HANDLER(ViewHostMsg_DocumentAvailableInMainFrame,
1006                         OnDocumentAvailableInMainFrame)
1007     IPC_MESSAGE_HANDLER(ViewHostMsg_ToggleFullscreen, OnToggleFullscreen)
1008     IPC_MESSAGE_HANDLER(ViewHostMsg_DidContentsPreferredSizeChange,
1009                         OnDidContentsPreferredSizeChange)
1010     IPC_MESSAGE_HANDLER(ViewHostMsg_DidChangeScrollOffset,
1011                         OnDidChangeScrollOffset)
1012     IPC_MESSAGE_HANDLER(ViewHostMsg_DidChangeScrollOffsetPinningForMainFrame,
1013                         OnDidChangeScrollOffsetPinningForMainFrame)
1014     IPC_MESSAGE_HANDLER(ViewHostMsg_DidChangeNumWheelEvents,
1015                         OnDidChangeNumWheelEvents)
1016     IPC_MESSAGE_HANDLER(ViewHostMsg_RouteCloseEvent,
1017                         OnRouteCloseEvent)
1018     IPC_MESSAGE_HANDLER(ViewHostMsg_RouteMessageEvent, OnRouteMessageEvent)
1019     IPC_MESSAGE_HANDLER(DragHostMsg_StartDragging, OnStartDragging)
1020     IPC_MESSAGE_HANDLER(DragHostMsg_UpdateDragCursor, OnUpdateDragCursor)
1021     IPC_MESSAGE_HANDLER(DragHostMsg_TargetDrop_ACK, OnTargetDropACK)
1022     IPC_MESSAGE_HANDLER(ViewHostMsg_TakeFocus, OnTakeFocus)
1023     IPC_MESSAGE_HANDLER(ViewHostMsg_FocusedNodeChanged, OnFocusedNodeChanged)
1024     IPC_MESSAGE_HANDLER(ViewHostMsg_ClosePage_ACK, OnClosePageACK)
1025 #if defined(OS_ANDROID)
1026     IPC_MESSAGE_HANDLER(ViewHostMsg_SelectionRootBoundsChanged,
1027                         OnSelectionRootBoundsChanged)
1028 #endif
1029     IPC_MESSAGE_HANDLER(ViewHostMsg_DidZoomURL, OnDidZoomURL)
1030 #if defined(OS_MACOSX) || defined(OS_ANDROID)
1031     IPC_MESSAGE_HANDLER(ViewHostMsg_ShowPopup, OnShowPopup)
1032     IPC_MESSAGE_HANDLER(ViewHostMsg_HidePopup, OnHidePopup)
1033 #endif
1034     IPC_MESSAGE_HANDLER(ViewHostMsg_RunFileChooser, OnRunFileChooser)
1035     IPC_MESSAGE_HANDLER(AccessibilityHostMsg_Events, OnAccessibilityEvents)
1036     IPC_MESSAGE_HANDLER(AccessibilityHostMsg_LocationChanges,
1037                         OnAccessibilityLocationChanges)
1038     IPC_MESSAGE_HANDLER(ViewHostMsg_FocusedNodeTouched, OnFocusedNodeTouched)
1039     // Have the super handle all other messages.
1040     IPC_MESSAGE_UNHANDLED(
1041         handled = RenderWidgetHostImpl::OnMessageReceived(msg))
1042   IPC_END_MESSAGE_MAP_EX()
1043
1044   if (!msg_is_ok) {
1045     // The message had a handler, but its de-serialization failed.
1046     // Kill the renderer.
1047     RecordAction(base::UserMetricsAction("BadMessageTerminate_RVH"));
1048     GetProcess()->ReceivedBadMessage();
1049   }
1050
1051   return handled;
1052 }
1053
1054 void RenderViewHostImpl::Init() {
1055   RenderWidgetHostImpl::Init();
1056 }
1057
1058 void RenderViewHostImpl::Shutdown() {
1059   // If we are being run modally (see RunModal), then we need to cleanup.
1060   if (run_modal_reply_msg_) {
1061     Send(run_modal_reply_msg_);
1062     run_modal_reply_msg_ = NULL;
1063     RenderViewHostImpl* opener =
1064         RenderViewHostImpl::FromID(GetProcess()->GetID(), run_modal_opener_id_);
1065     if (opener) {
1066       opener->StartHangMonitorTimeout(TimeDelta::FromMilliseconds(
1067           hung_renderer_delay_ms_));
1068       // Balance out the decrement when we got created.
1069       opener->increment_in_flight_event_count();
1070     }
1071     run_modal_opener_id_ = MSG_ROUTING_NONE;
1072   }
1073
1074   RenderWidgetHostImpl::Shutdown();
1075 }
1076
1077 bool RenderViewHostImpl::IsRenderView() const {
1078   return true;
1079 }
1080
1081 void RenderViewHostImpl::CreateNewWindow(
1082     int route_id,
1083     int main_frame_route_id,
1084     const ViewHostMsg_CreateWindow_Params& params,
1085     SessionStorageNamespace* session_storage_namespace) {
1086   ViewHostMsg_CreateWindow_Params validated_params(params);
1087   GetProcess()->FilterURL(false, &validated_params.target_url);
1088   GetProcess()->FilterURL(false, &validated_params.opener_url);
1089   GetProcess()->FilterURL(true, &validated_params.opener_security_origin);
1090
1091   delegate_->CreateNewWindow(
1092       GetProcess()->GetID(), route_id, main_frame_route_id, validated_params,
1093       session_storage_namespace);
1094 }
1095
1096 void RenderViewHostImpl::CreateNewWidget(int route_id,
1097                                      blink::WebPopupType popup_type) {
1098   delegate_->CreateNewWidget(GetProcess()->GetID(), route_id, popup_type);
1099 }
1100
1101 void RenderViewHostImpl::CreateNewFullscreenWidget(int route_id) {
1102   delegate_->CreateNewFullscreenWidget(GetProcess()->GetID(), route_id);
1103 }
1104
1105 void RenderViewHostImpl::OnShowView(int route_id,
1106                                     WindowOpenDisposition disposition,
1107                                     const gfx::Rect& initial_pos,
1108                                     bool user_gesture) {
1109   if (IsRVHStateActive(rvh_state_)) {
1110     delegate_->ShowCreatedWindow(
1111         route_id, disposition, initial_pos, user_gesture);
1112   }
1113   Send(new ViewMsg_Move_ACK(route_id));
1114 }
1115
1116 void RenderViewHostImpl::OnShowWidget(int route_id,
1117                                       const gfx::Rect& initial_pos) {
1118   if (IsRVHStateActive(rvh_state_))
1119     delegate_->ShowCreatedWidget(route_id, initial_pos);
1120   Send(new ViewMsg_Move_ACK(route_id));
1121 }
1122
1123 void RenderViewHostImpl::OnShowFullscreenWidget(int route_id) {
1124   if (IsRVHStateActive(rvh_state_))
1125     delegate_->ShowCreatedFullscreenWidget(route_id);
1126   Send(new ViewMsg_Move_ACK(route_id));
1127 }
1128
1129 void RenderViewHostImpl::OnRunModal(int opener_id, IPC::Message* reply_msg) {
1130   DCHECK(!run_modal_reply_msg_);
1131   run_modal_reply_msg_ = reply_msg;
1132   run_modal_opener_id_ = opener_id;
1133
1134   RecordAction(base::UserMetricsAction("ShowModalDialog"));
1135
1136   RenderViewHostImpl* opener =
1137       RenderViewHostImpl::FromID(GetProcess()->GetID(), run_modal_opener_id_);
1138   if (opener) {
1139     opener->StopHangMonitorTimeout();
1140     // The ack for the mouse down won't come until the dialog closes, so fake it
1141     // so that we don't get a timeout.
1142     opener->decrement_in_flight_event_count();
1143   }
1144
1145   // TODO(darin): Bug 1107929: Need to inform our delegate to show this view in
1146   // an app-modal fashion.
1147 }
1148
1149 void RenderViewHostImpl::OnRenderViewReady() {
1150   render_view_termination_status_ = base::TERMINATION_STATUS_STILL_RUNNING;
1151   SendScreenRects();
1152   WasResized();
1153   delegate_->RenderViewReady(this);
1154 }
1155
1156 void RenderViewHostImpl::OnRenderProcessGone(int status, int exit_code) {
1157   // Keep the termination status so we can get at it later when we
1158   // need to know why it died.
1159   render_view_termination_status_ =
1160       static_cast<base::TerminationStatus>(status);
1161
1162   // Reset frame tree state associated with this process.  This must happen
1163   // before RenderViewTerminated because observers expect the subframes of any
1164   // affected frames to be cleared first.
1165   delegate_->GetFrameTree()->RenderProcessGone(this);
1166
1167   // Our base class RenderWidgetHost needs to reset some stuff.
1168   RendererExited(render_view_termination_status_, exit_code);
1169
1170   delegate_->RenderViewTerminated(this,
1171                                   static_cast<base::TerminationStatus>(status),
1172                                   exit_code);
1173 }
1174
1175 void RenderViewHostImpl::OnUpdateState(int32 page_id, const PageState& state) {
1176   // Without this check, the renderer can trick the browser into using
1177   // filenames it can't access in a future session restore.
1178   if (!CanAccessFilesOfPageState(state)) {
1179     GetProcess()->ReceivedBadMessage();
1180     return;
1181   }
1182
1183   delegate_->UpdateState(this, page_id, state);
1184 }
1185
1186 void RenderViewHostImpl::OnUpdateTitle(
1187     int32 page_id,
1188     const base::string16& title,
1189     blink::WebTextDirection title_direction) {
1190   if (title.length() > kMaxTitleChars) {
1191     NOTREACHED() << "Renderer sent too many characters in title.";
1192     return;
1193   }
1194
1195   delegate_->UpdateTitle(this, page_id, title,
1196                          WebTextDirectionToChromeTextDirection(
1197                              title_direction));
1198 }
1199
1200 void RenderViewHostImpl::OnUpdateEncoding(const std::string& encoding_name) {
1201   delegate_->UpdateEncoding(this, encoding_name);
1202 }
1203
1204 void RenderViewHostImpl::OnUpdateTargetURL(int32 page_id, const GURL& url) {
1205   if (IsRVHStateActive(rvh_state_))
1206     delegate_->UpdateTargetURL(page_id, url);
1207
1208   // Send a notification back to the renderer that we are ready to
1209   // receive more target urls.
1210   Send(new ViewMsg_UpdateTargetURL_ACK(GetRoutingID()));
1211 }
1212
1213 void RenderViewHostImpl::OnUpdateInspectorSetting(
1214     const std::string& key, const std::string& value) {
1215   GetContentClient()->browser()->UpdateInspectorSetting(
1216       this, key, value);
1217 }
1218
1219 void RenderViewHostImpl::OnClose() {
1220   // If the renderer is telling us to close, it has already run the unload
1221   // events, and we can take the fast path.
1222   ClosePageIgnoringUnloadEvents();
1223 }
1224
1225 void RenderViewHostImpl::OnRequestMove(const gfx::Rect& pos) {
1226   if (IsRVHStateActive(rvh_state_))
1227     delegate_->RequestMove(pos);
1228   Send(new ViewMsg_Move_ACK(GetRoutingID()));
1229 }
1230
1231 void RenderViewHostImpl::OnDidChangeLoadProgress(double load_progress) {
1232   delegate_->DidChangeLoadProgress(load_progress);
1233 }
1234
1235 void RenderViewHostImpl::OnDocumentAvailableInMainFrame() {
1236   delegate_->DocumentAvailableInMainFrame(this);
1237 }
1238
1239 void RenderViewHostImpl::OnToggleFullscreen(bool enter_fullscreen) {
1240   DCHECK_CURRENTLY_ON(BrowserThread::UI);
1241   delegate_->ToggleFullscreenMode(enter_fullscreen);
1242   // We need to notify the contents that its fullscreen state has changed. This
1243   // is done as part of the resize message.
1244   WasResized();
1245 }
1246
1247 void RenderViewHostImpl::OnDidContentsPreferredSizeChange(
1248     const gfx::Size& new_size) {
1249   delegate_->UpdatePreferredSize(new_size);
1250 }
1251
1252 void RenderViewHostImpl::OnRenderAutoResized(const gfx::Size& new_size) {
1253   delegate_->ResizeDueToAutoResize(new_size);
1254 }
1255
1256 void RenderViewHostImpl::OnDidChangeScrollOffset() {
1257   if (view_)
1258     view_->ScrollOffsetChanged();
1259 }
1260
1261 void RenderViewHostImpl::OnDidChangeScrollOffsetPinningForMainFrame(
1262     bool is_pinned_to_left, bool is_pinned_to_right) {
1263   if (view_)
1264     view_->SetScrollOffsetPinning(is_pinned_to_left, is_pinned_to_right);
1265 }
1266
1267 void RenderViewHostImpl::OnDidChangeNumWheelEvents(int count) {
1268 }
1269
1270 #if defined(OS_ANDROID)
1271 void RenderViewHostImpl::OnSelectionRootBoundsChanged(
1272     const gfx::Rect& bounds) {
1273   if (view_) {
1274     view_->SelectionRootBoundsChanged(bounds);
1275   }
1276 }
1277 #endif
1278
1279 void RenderViewHostImpl::OnRouteCloseEvent() {
1280   // Have the delegate route this to the active RenderViewHost.
1281   delegate_->RouteCloseEvent(this);
1282 }
1283
1284 void RenderViewHostImpl::OnRouteMessageEvent(
1285     const ViewMsg_PostMessage_Params& params) {
1286   // Give to the delegate to route to the active RenderViewHost.
1287   delegate_->RouteMessageEvent(this, params);
1288 }
1289
1290 void RenderViewHostImpl::OnStartDragging(
1291     const DropData& drop_data,
1292     WebDragOperationsMask drag_operations_mask,
1293     const SkBitmap& bitmap,
1294     const gfx::Vector2d& bitmap_offset_in_dip,
1295     const DragEventSourceInfo& event_info) {
1296   RenderViewHostDelegateView* view = delegate_->GetDelegateView();
1297   if (!view)
1298     return;
1299
1300   DropData filtered_data(drop_data);
1301   RenderProcessHost* process = GetProcess();
1302   ChildProcessSecurityPolicyImpl* policy =
1303       ChildProcessSecurityPolicyImpl::GetInstance();
1304
1305   // Allow drag of Javascript URLs to enable bookmarklet drag to bookmark bar.
1306   if (!filtered_data.url.SchemeIs(kJavaScriptScheme))
1307     process->FilterURL(true, &filtered_data.url);
1308   process->FilterURL(false, &filtered_data.html_base_url);
1309   // Filter out any paths that the renderer didn't have access to. This prevents
1310   // the following attack on a malicious renderer:
1311   // 1. StartDragging IPC sent with renderer-specified filesystem paths that it
1312   //    doesn't have read permissions for.
1313   // 2. We initiate a native DnD operation.
1314   // 3. DnD operation immediately ends since mouse is not held down. DnD events
1315   //    still fire though, which causes read permissions to be granted to the
1316   //    renderer for any file paths in the drop.
1317   filtered_data.filenames.clear();
1318   for (std::vector<ui::FileInfo>::const_iterator it =
1319            drop_data.filenames.begin();
1320        it != drop_data.filenames.end();
1321        ++it) {
1322     if (policy->CanReadFile(GetProcess()->GetID(), it->path))
1323       filtered_data.filenames.push_back(*it);
1324   }
1325
1326   fileapi::FileSystemContext* file_system_context =
1327       BrowserContext::GetStoragePartition(
1328           GetProcess()->GetBrowserContext(),
1329           GetSiteInstance())->GetFileSystemContext();
1330   filtered_data.file_system_files.clear();
1331   for (size_t i = 0; i < drop_data.file_system_files.size(); ++i) {
1332     fileapi::FileSystemURL file_system_url =
1333         file_system_context->CrackURL(drop_data.file_system_files[i].url);
1334     if (policy->CanReadFileSystemFile(GetProcess()->GetID(), file_system_url))
1335       filtered_data.file_system_files.push_back(drop_data.file_system_files[i]);
1336   }
1337
1338   float scale = ui::GetImageScale(GetScaleFactorForView(GetView()));
1339   gfx::ImageSkia image(gfx::ImageSkiaRep(bitmap, scale));
1340   view->StartDragging(filtered_data, drag_operations_mask, image,
1341       bitmap_offset_in_dip, event_info);
1342 }
1343
1344 void RenderViewHostImpl::OnUpdateDragCursor(WebDragOperation current_op) {
1345   RenderViewHostDelegateView* view = delegate_->GetDelegateView();
1346   if (view)
1347     view->UpdateDragCursor(current_op);
1348 }
1349
1350 void RenderViewHostImpl::OnTargetDropACK() {
1351   NotificationService::current()->Notify(
1352       NOTIFICATION_RENDER_VIEW_HOST_DID_RECEIVE_DRAG_TARGET_DROP_ACK,
1353       Source<RenderViewHost>(this),
1354       NotificationService::NoDetails());
1355 }
1356
1357 void RenderViewHostImpl::OnTakeFocus(bool reverse) {
1358   RenderViewHostDelegateView* view = delegate_->GetDelegateView();
1359   if (view)
1360     view->TakeFocus(reverse);
1361 }
1362
1363 void RenderViewHostImpl::OnFocusedNodeChanged(bool is_editable_node) {
1364   if (view_)
1365     view_->FocusedNodeChanged(is_editable_node);
1366 #if defined(OS_WIN)
1367   if (!is_editable_node && virtual_keyboard_requested_) {
1368     virtual_keyboard_requested_ = false;
1369     BrowserThread::PostDelayedTask(
1370         BrowserThread::UI, FROM_HERE,
1371         base::Bind(base::IgnoreResult(&DismissVirtualKeyboardTask)),
1372         TimeDelta::FromMilliseconds(kVirtualKeyboardDisplayWaitTimeoutMs));
1373   }
1374 #endif
1375   NotificationService::current()->Notify(
1376       NOTIFICATION_FOCUS_CHANGED_IN_PAGE,
1377       Source<RenderViewHost>(this),
1378       Details<const bool>(&is_editable_node));
1379 }
1380
1381 void RenderViewHostImpl::OnUserGesture() {
1382   delegate_->OnUserGesture();
1383 }
1384
1385 void RenderViewHostImpl::OnClosePageACK() {
1386   decrement_in_flight_event_count();
1387   ClosePageIgnoringUnloadEvents();
1388 }
1389
1390 void RenderViewHostImpl::NotifyRendererUnresponsive() {
1391   delegate_->RendererUnresponsive(
1392       this, is_waiting_for_beforeunload_ack_, IsWaitingForUnloadACK());
1393 }
1394
1395 void RenderViewHostImpl::NotifyRendererResponsive() {
1396   delegate_->RendererResponsive(this);
1397 }
1398
1399 void RenderViewHostImpl::RequestToLockMouse(bool user_gesture,
1400                                             bool last_unlocked_by_target) {
1401   delegate_->RequestToLockMouse(user_gesture, last_unlocked_by_target);
1402 }
1403
1404 bool RenderViewHostImpl::IsFullscreen() const {
1405   return delegate_->IsFullscreenForCurrentTab();
1406 }
1407
1408 void RenderViewHostImpl::OnFocus() {
1409   // Note: We allow focus and blur from swapped out RenderViewHosts, even when
1410   // the active RenderViewHost is in a different BrowsingInstance (e.g., WebUI).
1411   delegate_->Activate();
1412 }
1413
1414 void RenderViewHostImpl::OnBlur() {
1415   delegate_->Deactivate();
1416 }
1417
1418 gfx::Rect RenderViewHostImpl::GetRootWindowResizerRect() const {
1419   return delegate_->GetRootWindowResizerRect();
1420 }
1421
1422 void RenderViewHostImpl::ForwardMouseEvent(
1423     const blink::WebMouseEvent& mouse_event) {
1424
1425   // We make a copy of the mouse event because
1426   // RenderWidgetHost::ForwardMouseEvent will delete |mouse_event|.
1427   blink::WebMouseEvent event_copy(mouse_event);
1428   RenderWidgetHostImpl::ForwardMouseEvent(event_copy);
1429
1430   switch (event_copy.type) {
1431     case WebInputEvent::MouseMove:
1432       delegate_->HandleMouseMove();
1433       break;
1434     case WebInputEvent::MouseLeave:
1435       delegate_->HandleMouseLeave();
1436       break;
1437     case WebInputEvent::MouseDown:
1438       delegate_->HandleMouseDown();
1439       break;
1440     case WebInputEvent::MouseWheel:
1441       if (ignore_input_events())
1442         delegate_->OnIgnoredUIEvent();
1443       break;
1444     case WebInputEvent::MouseUp:
1445       delegate_->HandleMouseUp();
1446     default:
1447       // For now, we don't care about the rest.
1448       break;
1449   }
1450 }
1451
1452 void RenderViewHostImpl::OnPointerEventActivate() {
1453   delegate_->HandlePointerActivate();
1454 }
1455
1456 void RenderViewHostImpl::ForwardKeyboardEvent(
1457     const NativeWebKeyboardEvent& key_event) {
1458   if (ignore_input_events()) {
1459     if (key_event.type == WebInputEvent::RawKeyDown)
1460       delegate_->OnIgnoredUIEvent();
1461     return;
1462   }
1463   RenderWidgetHostImpl::ForwardKeyboardEvent(key_event);
1464 }
1465
1466 #if defined(OS_ANDROID)
1467 void RenderViewHostImpl::DidSelectPopupMenuItems(
1468     const std::vector<int>& selected_indices) {
1469   Send(new ViewMsg_SelectPopupMenuItems(GetRoutingID(), false,
1470                                         selected_indices));
1471 }
1472
1473 void RenderViewHostImpl::DidCancelPopupMenu() {
1474   Send(new ViewMsg_SelectPopupMenuItems(GetRoutingID(), true,
1475                                         std::vector<int>()));
1476 }
1477 #endif
1478
1479 #if defined(OS_MACOSX)
1480 void RenderViewHostImpl::DidSelectPopupMenuItem(int selected_index) {
1481   Send(new ViewMsg_SelectPopupMenuItem(GetRoutingID(), selected_index));
1482 }
1483
1484 void RenderViewHostImpl::DidCancelPopupMenu() {
1485   Send(new ViewMsg_SelectPopupMenuItem(GetRoutingID(), -1));
1486 }
1487 #endif
1488
1489 void RenderViewHostImpl::SendOrientationChangeEvent(int orientation) {
1490   Send(new ViewMsg_OrientationChangeEvent(GetRoutingID(), orientation));
1491 }
1492
1493 bool RenderViewHostImpl::IsWaitingForUnloadACK() const {
1494   return rvh_state_ == STATE_WAITING_FOR_UNLOAD_ACK ||
1495          rvh_state_ == STATE_WAITING_FOR_CLOSE ||
1496          rvh_state_ == STATE_PENDING_SHUTDOWN ||
1497          rvh_state_ == STATE_PENDING_SWAP_OUT;
1498 }
1499
1500 void RenderViewHostImpl::ExitFullscreen() {
1501   RejectMouseLockOrUnlockIfNecessary();
1502   // Notify delegate_ and renderer of fullscreen state change.
1503   OnToggleFullscreen(false);
1504 }
1505
1506 WebPreferences RenderViewHostImpl::GetWebkitPreferences() {
1507   return delegate_->GetWebkitPrefs();
1508 }
1509
1510 void RenderViewHostImpl::DisownOpener() {
1511   // This should only be called when swapped out.
1512   DCHECK(IsSwappedOut());
1513
1514   Send(new ViewMsg_DisownOpener(GetRoutingID()));
1515 }
1516
1517 void RenderViewHostImpl::SetAccessibilityCallbackForTesting(
1518     const base::Callback<void(ui::AXEvent)>& callback) {
1519   accessibility_testing_callback_ = callback;
1520 }
1521
1522 void RenderViewHostImpl::UpdateWebkitPreferences(const WebPreferences& prefs) {
1523   Send(new ViewMsg_UpdateWebPreferences(GetRoutingID(), prefs));
1524 }
1525
1526 void RenderViewHostImpl::GetAudioOutputControllers(
1527     const GetAudioOutputControllersCallback& callback) const {
1528   AudioRendererHost* audio_host =
1529       static_cast<RenderProcessHostImpl*>(GetProcess())->audio_renderer_host();
1530   audio_host->GetOutputControllers(GetRoutingID(), callback);
1531 }
1532
1533 void RenderViewHostImpl::ClearFocusedElement() {
1534   Send(new ViewMsg_ClearFocusedElement(GetRoutingID()));
1535 }
1536
1537 void RenderViewHostImpl::Zoom(PageZoom zoom) {
1538   Send(new ViewMsg_Zoom(GetRoutingID(), zoom));
1539 }
1540
1541 void RenderViewHostImpl::DisableScrollbarsForThreshold(const gfx::Size& size) {
1542   Send(new ViewMsg_DisableScrollbarsForSmallWindows(GetRoutingID(), size));
1543 }
1544
1545 void RenderViewHostImpl::EnablePreferredSizeMode() {
1546   Send(new ViewMsg_EnablePreferredSizeChangedMode(GetRoutingID()));
1547 }
1548
1549 void RenderViewHostImpl::EnableAutoResize(const gfx::Size& min_size,
1550                                           const gfx::Size& max_size) {
1551   SetShouldAutoResize(true);
1552   Send(new ViewMsg_EnableAutoResize(GetRoutingID(), min_size, max_size));
1553 }
1554
1555 void RenderViewHostImpl::DisableAutoResize(const gfx::Size& new_size) {
1556   SetShouldAutoResize(false);
1557   Send(new ViewMsg_DisableAutoResize(GetRoutingID(), new_size));
1558 }
1559
1560 void RenderViewHostImpl::CopyImageAt(int x, int y) {
1561   Send(new ViewMsg_CopyImageAt(GetRoutingID(), x, y));
1562 }
1563
1564 void RenderViewHostImpl::ExecuteMediaPlayerActionAtLocation(
1565   const gfx::Point& location, const blink::WebMediaPlayerAction& action) {
1566   Send(new ViewMsg_MediaPlayerActionAt(GetRoutingID(), location, action));
1567 }
1568
1569 void RenderViewHostImpl::ExecutePluginActionAtLocation(
1570   const gfx::Point& location, const blink::WebPluginAction& action) {
1571   Send(new ViewMsg_PluginActionAt(GetRoutingID(), location, action));
1572 }
1573
1574 void RenderViewHostImpl::NotifyMoveOrResizeStarted() {
1575   Send(new ViewMsg_MoveOrResizeStarted(GetRoutingID()));
1576 }
1577
1578 void RenderViewHostImpl::OnAccessibilityEvents(
1579     const std::vector<AccessibilityHostMsg_EventParams>& params) {
1580   if ((accessibility_mode() != AccessibilityModeOff) && view_ &&
1581       IsRVHStateActive(rvh_state_)) {
1582     if (accessibility_mode() & AccessibilityModeFlagPlatform) {
1583       view_->CreateBrowserAccessibilityManagerIfNeeded();
1584       BrowserAccessibilityManager* manager =
1585           view_->GetBrowserAccessibilityManager();
1586       if (manager)
1587         manager->OnAccessibilityEvents(params);
1588     }
1589
1590     std::vector<AXEventNotificationDetails> details;
1591     for (unsigned int i = 0; i < params.size(); ++i) {
1592       const AccessibilityHostMsg_EventParams& param = params[i];
1593       AXEventNotificationDetails detail(param.update.nodes,
1594                                         param.event_type,
1595                                         param.id,
1596                                         GetProcess()->GetID(),
1597                                         GetRoutingID());
1598       details.push_back(detail);
1599     }
1600
1601     delegate_->AccessibilityEventReceived(details);
1602   }
1603
1604   // Always send an ACK or the renderer can be in a bad state.
1605   Send(new AccessibilityMsg_Events_ACK(GetRoutingID()));
1606
1607   // The rest of this code is just for testing; bail out if we're not
1608   // in that mode.
1609   if (accessibility_testing_callback_.is_null())
1610     return;
1611
1612   for (unsigned i = 0; i < params.size(); i++) {
1613     const AccessibilityHostMsg_EventParams& param = params[i];
1614     if (static_cast<int>(param.event_type) < 0)
1615       continue;
1616     if (!ax_tree_)
1617       ax_tree_.reset(new ui::AXTree(param.update));
1618     else
1619       CHECK(ax_tree_->Unserialize(param.update)) << ax_tree_->error();
1620     accessibility_testing_callback_.Run(param.event_type);
1621   }
1622 }
1623
1624 void RenderViewHostImpl::OnAccessibilityLocationChanges(
1625     const std::vector<AccessibilityHostMsg_LocationChangeParams>& params) {
1626   if (view_ && IsRVHStateActive(rvh_state_)) {
1627     if (accessibility_mode() & AccessibilityModeFlagPlatform) {
1628       view_->CreateBrowserAccessibilityManagerIfNeeded();
1629       BrowserAccessibilityManager* manager =
1630           view_->GetBrowserAccessibilityManager();
1631       if (manager)
1632         manager->OnLocationChanges(params);
1633     }
1634     // TODO(aboxhall): send location change events to web contents observers too
1635   }
1636 }
1637
1638 void RenderViewHostImpl::OnDidZoomURL(double zoom_level,
1639                                       bool remember,
1640                                       const GURL& url) {
1641   HostZoomMapImpl* host_zoom_map = static_cast<HostZoomMapImpl*>(
1642       HostZoomMap::GetForBrowserContext(GetProcess()->GetBrowserContext()));
1643   if (remember) {
1644     host_zoom_map->
1645         SetZoomLevelForHost(net::GetHostOrSpecFromURL(url), zoom_level);
1646   } else {
1647     host_zoom_map->SetTemporaryZoomLevel(
1648         GetProcess()->GetID(), GetRoutingID(), zoom_level);
1649   }
1650 }
1651
1652 void RenderViewHostImpl::OnRunFileChooser(const FileChooserParams& params) {
1653   delegate_->RunFileChooser(this, params);
1654 }
1655
1656 void RenderViewHostImpl::OnFocusedNodeTouched(bool editable) {
1657 #if defined(OS_WIN)
1658   if (editable) {
1659     virtual_keyboard_requested_ = base::win::DisplayVirtualKeyboard();
1660   } else {
1661     virtual_keyboard_requested_ = false;
1662     base::win::DismissVirtualKeyboard();
1663   }
1664 #endif
1665 }
1666
1667 #if defined(OS_MACOSX) || defined(OS_ANDROID)
1668 void RenderViewHostImpl::OnShowPopup(
1669     const ViewHostMsg_ShowPopup_Params& params) {
1670   RenderViewHostDelegateView* view = delegate_->GetDelegateView();
1671   if (view) {
1672     view->ShowPopupMenu(params.bounds,
1673                         params.item_height,
1674                         params.item_font_size,
1675                         params.selected_item,
1676                         params.popup_items,
1677                         params.right_aligned,
1678                         params.allow_multiple_selection);
1679   }
1680 }
1681
1682 void RenderViewHostImpl::OnHidePopup() {
1683   RenderViewHostDelegateView* view = delegate_->GetDelegateView();
1684   if (view)
1685     view->HidePopupMenu();
1686 }
1687 #endif
1688
1689 void RenderViewHostImpl::SetState(RenderViewHostImplState rvh_state) {
1690   // We update the number of RenderViews in a SiteInstance when the
1691   // swapped out status of this RenderView gets flipped to/from live.
1692   if (!IsRVHStateActive(rvh_state_) && IsRVHStateActive(rvh_state))
1693     instance_->increment_active_view_count();
1694   else if (IsRVHStateActive(rvh_state_) && !IsRVHStateActive(rvh_state))
1695     instance_->decrement_active_view_count();
1696
1697   // Whenever we change the RVH state to and from live or swapped out state, we
1698   // should not be waiting for beforeunload or unload acks.  We clear them here
1699   // to be safe, since they can cause navigations to be ignored in OnNavigate.
1700   if (rvh_state == STATE_DEFAULT ||
1701       rvh_state == STATE_SWAPPED_OUT ||
1702       rvh_state_ == STATE_DEFAULT ||
1703       rvh_state_ == STATE_SWAPPED_OUT) {
1704     is_waiting_for_beforeunload_ack_ = false;
1705   }
1706   rvh_state_ = rvh_state;
1707
1708 }
1709
1710 bool RenderViewHostImpl::CanAccessFilesOfPageState(
1711     const PageState& state) const {
1712   ChildProcessSecurityPolicyImpl* policy =
1713       ChildProcessSecurityPolicyImpl::GetInstance();
1714
1715   const std::vector<base::FilePath>& file_paths = state.GetReferencedFiles();
1716   for (std::vector<base::FilePath>::const_iterator file = file_paths.begin();
1717        file != file_paths.end(); ++file) {
1718     if (!policy->CanReadFile(GetProcess()->GetID(), *file))
1719       return false;
1720   }
1721   return true;
1722 }
1723
1724 void RenderViewHostImpl::AttachToFrameTree() {
1725   FrameTree* frame_tree = delegate_->GetFrameTree();
1726
1727   frame_tree->ResetForMainFrameSwap();
1728 }
1729
1730 }  // namespace content