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/common/accessibility_messages.h"
  43 #include "content/common/browser_plugin/browser_plugin_messages.h"
  44 #include "content/common/content_switches_internal.h"
  45 #include "content/common/desktop_notification_messages.h"
  46 #include "content/common/drag_messages.h"
  47 #include "content/common/frame_messages.h"
  48 #include "content/common/input_messages.h"
  49 #include "content/common/inter_process_time_ticks_converter.h"
  50 #include "content/common/speech_recognition_messages.h"
  51 #include "content/common/swapped_out_messages.h"
  52 #include "content/common/view_messages.h"
  53 #include "content/port/browser/render_view_host_delegate_view.h"
  54 #include "content/port/browser/render_widget_host_view_port.h"
  55 #include "content/public/browser/ax_event_notification_details.h"
  56 #include "content/public/browser/browser_accessibility_state.h"
  57 #include "content/public/browser/browser_context.h"
  58 #include "content/public/browser/browser_message_filter.h"
  59 #include "content/public/browser/content_browser_client.h"
  60 #include "content/public/browser/native_web_keyboard_event.h"
  61 #include "content/public/browser/notification_details.h"
  62 #include "content/public/browser/notification_service.h"
  63 #include "content/public/browser/notification_types.h"
  64 #include "content/public/browser/render_frame_host.h"
  65 #include "content/public/browser/render_widget_host_iterator.h"
  66 #include "content/public/browser/user_metrics.h"
  67 #include "content/public/common/bindings_policy.h"
  68 #include "content/public/common/content_constants.h"
  69 #include "content/public/common/content_switches.h"
  70 #include "content/public/common/context_menu_params.h"
  71 #include "content/public/common/drop_data.h"
  72 #include "content/public/common/result_codes.h"
  73 #include "content/public/common/url_constants.h"
  74 #include "content/public/common/url_utils.h"
  75 #include "net/base/net_util.h"
  76 #include "net/base/network_change_notifier.h"
  77 #include "net/url_request/url_request_context_getter.h"
  78 #include "third_party/skia/include/core/SkBitmap.h"
  79 #include "ui/accessibility/ax_tree.h"
  80 #include "ui/base/touch/touch_device.h"
  81 #include "ui/base/touch/touch_enabled.h"
  82 #include "ui/base/ui_base_switches.h"
  83 #include "ui/gfx/image/image_skia.h"
  84 #include "ui/gfx/native_widget_types.h"
  85 #include "ui/native_theme/native_theme_switches.h"
  86 #include "ui/shell_dialogs/selected_file_info.h"
  87 #include "webkit/browser/fileapi/isolated_context.h"
  88
  89 #if defined(OS_MACOSX)
  90 #include "content/browser/renderer_host/popup_menu_helper_mac.h"
  91 #elif defined(OS_ANDROID)
  92 #include "content/browser/media/android/browser_media_player_manager.h"
  93 #elif defined(OS_WIN)
  94 #include "base/win/win_util.h"
  95 #endif
  96
  97 using base::TimeDelta;
  98 using blink::WebConsoleMessage;
  99 using blink::WebDragOperation;
 100 using blink::WebDragOperationNone;
 101 using blink::WebDragOperationsMask;
 102 using blink::WebInputEvent;
 103 using blink::WebMediaPlayerAction;
 104 using blink::WebPluginAction;
 105
 106 namespace content {
 107 namespace {
 108
 109 // Translate a WebKit text direction into a base::i18n one.
 110 base::i18n::TextDirection WebTextDirectionToChromeTextDirection(
 111     blink::WebTextDirection dir) {
 112   switch (dir) {
 113     case blink::WebTextDirectionLeftToRight:
 114       return base::i18n::LEFT_TO_RIGHT;
 115     case blink::WebTextDirectionRightToLeft:
 116       return base::i18n::RIGHT_TO_LEFT;
 117     default:
 118       NOTREACHED();
 119       return base::i18n::UNKNOWN_DIRECTION;
 120   }
 121 }
 122
 123 #if defined(OS_WIN)
 124
 125 const int kVirtualKeyboardDisplayWaitTimeoutMs = 100;
 126 const int kMaxVirtualKeyboardDisplayRetries = 5;
 127
 128 void DismissVirtualKeyboardTask() {
 129   static int virtual_keyboard_display_retries = 0;
 130   // If the virtual keyboard is not yet visible, then we execute the task again
 131   // waiting for it to show up.
 132   if (!base::win::DismissVirtualKeyboard()) {
 133     if (virtual_keyboard_display_retries < kMaxVirtualKeyboardDisplayRetries) {
 134       BrowserThread::PostDelayedTask(
 135           BrowserThread::UI, FROM_HERE,
 136           base::Bind(base::IgnoreResult(&DismissVirtualKeyboardTask)),
 137           TimeDelta::FromMilliseconds(kVirtualKeyboardDisplayWaitTimeoutMs));
 138       ++virtual_keyboard_display_retries;
 139     } else {
 140       virtual_keyboard_display_retries = 0;
 141     }
 142   }
 143 }
 144 #endif
 145
 146 }  // namespace
 147
 148 // static
 149 const int RenderViewHostImpl::kUnloadTimeoutMS = 1000;
 150
 151 ///////////////////////////////////////////////////////////////////////////////
 152 // RenderViewHost, public:
 153
 154 // static
 155 bool RenderViewHostImpl::IsRVHStateActive(RenderViewHostImplState rvh_state) {
 156   if (rvh_state == STATE_DEFAULT ||
 157       rvh_state == STATE_WAITING_FOR_UNLOAD_ACK ||
 158       rvh_state == STATE_WAITING_FOR_COMMIT ||
 159       rvh_state == STATE_WAITING_FOR_CLOSE)
 160     return true;
 161   return false;
 162 }
 163
 164 // static
 165 RenderViewHost* RenderViewHost::FromID(int render_process_id,
 166                                        int render_view_id) {
 167   return RenderViewHostImpl::FromID(render_process_id, render_view_id);
 168 }
 169
 170 // static
 171 RenderViewHost* RenderViewHost::From(RenderWidgetHost* rwh) {
 172   DCHECK(rwh->IsRenderView());
 173   return static_cast<RenderViewHostImpl*>(RenderWidgetHostImpl::From(rwh));
 174 }
 175
 176 ///////////////////////////////////////////////////////////////////////////////
 177 // RenderViewHostImpl, public:
 178
 179 // static
 180 RenderViewHostImpl* RenderViewHostImpl::FromID(int render_process_id,
 181                                                int render_view_id) {
 182   RenderWidgetHost* widget =
 183       RenderWidgetHost::FromID(render_process_id, render_view_id);
 184   if (!widget || !widget->IsRenderView())
 185     return NULL;
 186   return static_cast<RenderViewHostImpl*>(RenderWidgetHostImpl::From(widget));
 187 }
 188
 189 RenderViewHostImpl::RenderViewHostImpl(
 190     SiteInstance* instance,
 191     RenderViewHostDelegate* delegate,
 192     RenderWidgetHostDelegate* widget_delegate,
 193     int routing_id,
 194     int main_frame_routing_id,
 195     bool swapped_out,
 196     bool hidden)
 197     : RenderWidgetHostImpl(widget_delegate,
 198                            instance->GetProcess(),
 199                            routing_id,
 200                            hidden),
 201       frames_ref_count_(0),
 202       delegate_(delegate),
 203       instance_(static_cast<SiteInstanceImpl*>(instance)),
 204       waiting_for_drag_context_response_(false),
 205       enabled_bindings_(0),
 206       navigations_suspended_(false),
 207       has_accessed_initial_document_(false),
 208       main_frame_routing_id_(main_frame_routing_id),
 209       run_modal_reply_msg_(NULL),
 210       run_modal_opener_id_(MSG_ROUTING_NONE),
 211       is_waiting_for_beforeunload_ack_(false),
 212       unload_ack_is_for_cross_site_transition_(false),
 213       are_javascript_messages_suppressed_(false),
 214       sudden_termination_allowed_(false),
 215       render_view_termination_status_(base::TERMINATION_STATUS_STILL_RUNNING),
 216       virtual_keyboard_requested_(false),
 217       weak_factory_(this) {
 218   DCHECK(instance_.get());
 219   CHECK(delegate_);  // http://crbug.com/82827
 220
 221   GetProcess()->EnableSendQueue();
 222
 223   if (swapped_out) {
 224     rvh_state_ = STATE_SWAPPED_OUT;
 225   } else {
 226     rvh_state_ = STATE_DEFAULT;
 227     instance_->increment_active_view_count();
 228   }
 229
 230   if (ResourceDispatcherHostImpl::Get()) {
 231     BrowserThread::PostTask(
 232         BrowserThread::IO, FROM_HERE,
 233         base::Bind(&ResourceDispatcherHostImpl::OnRenderViewHostCreated,
 234                    base::Unretained(ResourceDispatcherHostImpl::Get()),
 235                    GetProcess()->GetID(), GetRoutingID()));
 236   }
 237
 238 #if defined(OS_ANDROID)
 239   media_player_manager_.reset(BrowserMediaPlayerManager::Create(this));
 240 #endif
 241
 242   unload_event_monitor_timeout_.reset(new TimeoutMonitor(base::Bind(
 243       &RenderViewHostImpl::OnSwappedOut, weak_factory_.GetWeakPtr(), true)));
 244 }
 245
 246 RenderViewHostImpl::~RenderViewHostImpl() {
 247   if (ResourceDispatcherHostImpl::Get()) {
 248     BrowserThread::PostTask(
 249         BrowserThread::IO, FROM_HERE,
 250         base::Bind(&ResourceDispatcherHostImpl::OnRenderViewHostDeleted,
 251                    base::Unretained(ResourceDispatcherHostImpl::Get()),
 252                    GetProcess()->GetID(), GetRoutingID()));
 253   }
 254
 255   delegate_->RenderViewDeleted(this);
 256
 257   // Be sure to clean up any leftover state from cross-site requests.
 258   CrossSiteRequestManager::GetInstance()->SetHasPendingCrossSiteRequest(
 259       GetProcess()->GetID(), GetRoutingID(), false);
 260
 261   // If this was swapped out, it already decremented the active view
 262   // count of the SiteInstance it belongs to.
 263   if (IsRVHStateActive(rvh_state_))
 264     instance_->decrement_active_view_count();
 265 }
 266
 267 RenderViewHostDelegate* RenderViewHostImpl::GetDelegate() const {
 268   return delegate_;
 269 }
 270
 271 SiteInstance* RenderViewHostImpl::GetSiteInstance() const {
 272   return instance_.get();
 273 }
 274
 275 bool RenderViewHostImpl::CreateRenderView(
 276     const base::string16& frame_name,
 277     int opener_route_id,
 278     int32 max_page_id) {
 279   TRACE_EVENT0("renderer_host", "RenderViewHostImpl::CreateRenderView");
 280   DCHECK(!IsRenderViewLive()) << "Creating view twice";
 281
 282   // The process may (if we're sharing a process with another host that already
 283   // initialized it) or may not (we have our own process or the old process
 284   // crashed) have been initialized. Calling Init multiple times will be
 285   // ignored, so this is safe.
 286   if (!GetProcess()->Init())
 287     return false;
 288   DCHECK(GetProcess()->HasConnection());
 289   DCHECK(GetProcess()->GetBrowserContext());
 290
 291   renderer_initialized_ = true;
 292
 293   GpuSurfaceTracker::Get()->SetSurfaceHandle(
 294       surface_id(), GetCompositingSurface());
 295
 296   // Ensure the RenderView starts with a next_page_id larger than any existing
 297   // page ID it might be asked to render.
 298   int32 next_page_id = 1;
 299   if (max_page_id > -1)
 300     next_page_id = max_page_id + 1;
 301
 302   ViewMsg_New_Params params;
 303   params.renderer_preferences =
 304       delegate_->GetRendererPrefs(GetProcess()->GetBrowserContext());
 305   params.web_preferences = delegate_->GetWebkitPrefs();
 306   params.view_id = GetRoutingID();
 307   params.main_frame_routing_id = main_frame_routing_id_;
 308   params.surface_id = surface_id();
 309   params.session_storage_namespace_id =
 310       delegate_->GetSessionStorageNamespace(instance_)->id();
 311   params.frame_name = frame_name;
 312   // Ensure the RenderView sets its opener correctly.
 313   params.opener_route_id = opener_route_id;
 314   params.swapped_out = !IsRVHStateActive(rvh_state_);
 315   params.hidden = is_hidden();
 316   params.next_page_id = next_page_id;
 317   GetWebScreenInfo(&params.screen_info);
 318   params.accessibility_mode = accessibility_mode();
 319
 320   Send(new ViewMsg_New(params));
 321
 322   // If it's enabled, tell the renderer to set up the Javascript bindings for
 323   // sending messages back to the browser.
 324   if (GetProcess()->IsGuest())
 325     DCHECK_EQ(0, enabled_bindings_);
 326   Send(new ViewMsg_AllowBindings(GetRoutingID(), enabled_bindings_));
 327   // Let our delegate know that we created a RenderView.
 328   delegate_->RenderViewCreated(this);
 329
 330   return true;
 331 }
 332
 333 bool RenderViewHostImpl::IsRenderViewLive() const {
 334   return GetProcess()->HasConnection() && renderer_initialized_;
 335 }
 336
 337 void RenderViewHostImpl::SyncRendererPrefs() {
 338   Send(new ViewMsg_SetRendererPrefs(GetRoutingID(),
 339                                     delegate_->GetRendererPrefs(
 340                                         GetProcess()->GetBrowserContext())));
 341 }
 342
 343 WebPreferences RenderViewHostImpl::GetWebkitPrefs(const GURL& url) {
 344   TRACE_EVENT0("browser", "RenderViewHostImpl::GetWebkitPrefs");
 345   WebPreferences prefs;
 346
 347   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 348
 349   prefs.javascript_enabled =
 350       !command_line.HasSwitch(switches::kDisableJavaScript);
 351   prefs.web_security_enabled =
 352       !command_line.HasSwitch(switches::kDisableWebSecurity);
 353   prefs.plugins_enabled =
 354       !command_line.HasSwitch(switches::kDisablePlugins);
 355   prefs.java_enabled =
 356       !command_line.HasSwitch(switches::kDisableJava);
 357
 358   prefs.remote_fonts_enabled =
 359       !command_line.HasSwitch(switches::kDisableRemoteFonts);
 360   prefs.xslt_enabled =
 361       !command_line.HasSwitch(switches::kDisableXSLT);
 362   prefs.xss_auditor_enabled =
 363       !command_line.HasSwitch(switches::kDisableXSSAuditor);
 364   prefs.application_cache_enabled =
 365       !command_line.HasSwitch(switches::kDisableApplicationCache);
 366
 367   prefs.local_storage_enabled =
 368       !command_line.HasSwitch(switches::kDisableLocalStorage);
 369   prefs.databases_enabled =
 370       !command_line.HasSwitch(switches::kDisableDatabases);
 371 #if defined(OS_ANDROID) && defined(ARCH_CPU_X86)
 372   prefs.webaudio_enabled =
 373       command_line.HasSwitch(switches::kEnableWebAudio);
 374 #else
 375   prefs.webaudio_enabled =
 376       !command_line.HasSwitch(switches::kDisableWebAudio);
 377 #endif
 378
 379   prefs.experimental_webgl_enabled =
 380       GpuProcessHost::gpu_enabled() &&
 381       !command_line.HasSwitch(switches::kDisable3DAPIs) &&
 382       !command_line.HasSwitch(switches::kDisableExperimentalWebGL);
 383
 384   prefs.pepper_3d_enabled =
 385       !command_line.HasSwitch(switches::kDisablePepper3d);
 386
 387   prefs.flash_3d_enabled =
 388       GpuProcessHost::gpu_enabled() &&
 389       !command_line.HasSwitch(switches::kDisableFlash3d);
 390   prefs.flash_stage3d_enabled =
 391       GpuProcessHost::gpu_enabled() &&
 392       !command_line.HasSwitch(switches::kDisableFlashStage3d);
 393   prefs.flash_stage3d_baseline_enabled =
 394       GpuProcessHost::gpu_enabled() &&
 395       !command_line.HasSwitch(switches::kDisableFlashStage3d);
 396
 397   prefs.gl_multisampling_enabled =
 398       !command_line.HasSwitch(switches::kDisableGLMultisampling);
 399   prefs.privileged_webgl_extensions_enabled =
 400       command_line.HasSwitch(switches::kEnablePrivilegedWebGLExtensions);
 401   prefs.site_specific_quirks_enabled =
 402       !command_line.HasSwitch(switches::kDisableSiteSpecificQuirks);
 403   prefs.allow_file_access_from_file_urls =
 404       command_line.HasSwitch(switches::kAllowFileAccessFromFiles);
 405
 406   prefs.layer_squashing_enabled = false;
 407   if (command_line.HasSwitch(switches::kEnableLayerSquashing))
 408       prefs.layer_squashing_enabled = true;
 409   if (command_line.HasSwitch(switches::kDisableLayerSquashing))
 410       prefs.layer_squashing_enabled = false;
 411
 412   prefs.show_paint_rects =
 413       command_line.HasSwitch(switches::kShowPaintRects);
 414   prefs.accelerated_compositing_enabled =
 415       GpuProcessHost::gpu_enabled() &&
 416       !command_line.HasSwitch(switches::kDisableAcceleratedCompositing);
 417   prefs.force_compositing_mode =
 418       content::IsForceCompositingModeEnabled() &&
 419       !command_line.HasSwitch(switches::kDisableForceCompositingMode);
 420   prefs.accelerated_2d_canvas_enabled =
 421       GpuProcessHost::gpu_enabled() &&
 422       !command_line.HasSwitch(switches::kDisableAccelerated2dCanvas);
 423   prefs.antialiased_2d_canvas_disabled =
 424       command_line.HasSwitch(switches::kDisable2dCanvasAntialiasing);
 425   prefs.accelerated_2d_canvas_msaa_sample_count =
 426       atoi(command_line.GetSwitchValueASCII(
 427       switches::kAcceleratedCanvas2dMSAASampleCount).c_str());
 428   prefs.deferred_filters_enabled =
 429       command_line.HasSwitch(switches::kEnableDeferredFilters);
 430   prefs.accelerated_compositing_for_3d_transforms_enabled =
 431       prefs.accelerated_compositing_for_animation_enabled =
 432           !command_line.HasSwitch(switches::kDisableAcceleratedLayers);
 433   prefs.accelerated_compositing_for_plugins_enabled = true;
 434   prefs.accelerated_compositing_for_video_enabled =
 435       !command_line.HasSwitch(switches::kDisableAcceleratedVideo);
 436   prefs.lazy_layout_enabled =
 437       command_line.HasSwitch(switches::kEnableExperimentalWebPlatformFeatures);
 438   prefs.region_based_columns_enabled =
 439       command_line.HasSwitch(switches::kEnableRegionBasedColumns);
 440   prefs.threaded_html_parser =
 441       !command_line.HasSwitch(switches::kDisableThreadedHTMLParser);
 442   prefs.experimental_websocket_enabled =
 443       command_line.HasSwitch(switches::kEnableExperimentalWebSocket);
 444   if (command_line.HasSwitch(cc::switches::kEnablePinchVirtualViewport)) {
 445     prefs.pinch_virtual_viewport_enabled = true;
 446     prefs.pinch_overlay_scrollbar_thickness = 10;
 447   }
 448   prefs.use_solid_color_scrollbars = ui::IsOverlayScrollbarEnabled();
 449
 450 #if defined(OS_ANDROID)
 451   prefs.user_gesture_required_for_media_playback = !command_line.HasSwitch(
 452       switches::kDisableGestureRequirementForMediaPlayback);
 453   prefs.user_gesture_required_for_media_fullscreen = !command_line.HasSwitch(
 454       switches::kDisableGestureRequirementForMediaFullscreen);
 455 #endif
 456
 457   prefs.touch_enabled = ui::AreTouchEventsEnabled();
 458   prefs.device_supports_touch = prefs.touch_enabled &&
 459       ui::IsTouchDevicePresent();
 460 #if defined(OS_ANDROID)
 461   prefs.device_supports_mouse = false;
 462 #endif
 463
 464   prefs.pointer_events_max_touch_points = ui::MaxTouchPoints();
 465
 466   prefs.touch_adjustment_enabled =
 467       !command_line.HasSwitch(switches::kDisableTouchAdjustment);
 468   prefs.compositor_touch_hit_testing =
 469       !command_line.HasSwitch(
 470            cc::switches::kDisableCompositorTouchHitTesting) &&
 471       !command_line.HasSwitch(switches::kEnableBleedingEdgeRenderingFastPaths);
 472
 473
 474 #if defined(OS_MACOSX) || defined(OS_CHROMEOS)
 475   bool default_enable_scroll_animator = true;
 476 #else
 477   bool default_enable_scroll_animator = false;
 478 #endif
 479   prefs.enable_scroll_animator = default_enable_scroll_animator;
 480   if (command_line.HasSwitch(switches::kEnableSmoothScrolling))
 481     prefs.enable_scroll_animator = true;
 482   if (command_line.HasSwitch(switches::kDisableSmoothScrolling))
 483     prefs.enable_scroll_animator = false;
 484
 485   prefs.visual_word_movement_enabled =
 486       command_line.HasSwitch(switches::kEnableVisualWordMovement);
 487
 488   // Certain GPU features might have been blacklisted.
 489   GpuDataManagerImpl::GetInstance()->UpdateRendererWebPrefs(&prefs);
 490
 491   if (ChildProcessSecurityPolicyImpl::GetInstance()->HasWebUIBindings(
 492           GetProcess()->GetID())) {
 493     prefs.loads_images_automatically = true;
 494     prefs.javascript_enabled = true;
 495   }
 496
 497   prefs.is_online = !net::NetworkChangeNotifier::IsOffline();
 498
 499   prefs.fixed_position_creates_stacking_context = !command_line.HasSwitch(
 500       switches::kDisableFixedPositionCreatesStackingContext);
 501
 502   prefs.gesture_tap_highlight_enabled = !command_line.HasSwitch(
 503       switches::kDisableGestureTapHighlight);
 504
 505   prefs.number_of_cpu_cores = base::SysInfo::NumberOfProcessors();
 506
 507   prefs.viewport_meta_enabled =
 508       command_line.HasSwitch(switches::kEnableViewportMeta);
 509
 510   prefs.viewport_enabled =
 511       command_line.HasSwitch(switches::kEnableViewport) ||
 512       prefs.viewport_meta_enabled;
 513
 514   prefs.main_frame_resizes_are_orientation_changes =
 515       command_line.HasSwitch(switches::kMainFrameResizesAreOrientationChanges);
 516
 517   prefs.deferred_image_decoding_enabled =
 518       command_line.HasSwitch(switches::kEnableDeferredImageDecoding) ||
 519       content::IsImplSidePaintingEnabled();
 520
 521   prefs.spatial_navigation_enabled = command_line.HasSwitch(
 522       switches::kEnableSpatialNavigation);
 523
 524   GetContentClient()->browser()->OverrideWebkitPrefs(this, url, &prefs);
 525
 526   // Disable compositing in guests until we have compositing path implemented
 527   // for guests.
 528   bool guest_compositing_enabled = !command_line.HasSwitch(
 529       switches::kDisableBrowserPluginCompositing);
 530   if (GetProcess()->IsGuest() && !guest_compositing_enabled) {
 531     prefs.force_compositing_mode = false;
 532     prefs.accelerated_compositing_enabled = false;
 533   }
 534
 535   return prefs;
 536 }
 537
 538 void RenderViewHostImpl::Navigate(const FrameMsg_Navigate_Params& params) {
 539   TRACE_EVENT0("renderer_host", "RenderViewHostImpl::Navigate");
 540   delegate_->GetFrameTree()->GetMainFrame()->Navigate(params);
 541 }
 542
 543 void RenderViewHostImpl::NavigateToURL(const GURL& url) {
 544   delegate_->GetFrameTree()->GetMainFrame()->NavigateToURL(url);
 545 }
 546
 547 void RenderViewHostImpl::SetNavigationsSuspended(
 548     bool suspend,
 549     const base::TimeTicks& proceed_time) {
 550   // This should only be called to toggle the state.
 551   DCHECK(navigations_suspended_ != suspend);
 552
 553   navigations_suspended_ = suspend;
 554   if (!suspend && suspended_nav_params_) {
 555     // There's navigation message params waiting to be sent.  Now that we're not
 556     // suspended anymore, resume navigation by sending them.  If we were swapped
 557     // out, we should also stop filtering out the IPC messages now.
 558     SetState(STATE_DEFAULT);
 559
 560     DCHECK(!proceed_time.is_null());
 561     suspended_nav_params_->browser_navigation_start = proceed_time;
 562     Send(new FrameMsg_Navigate(
 563         main_frame_routing_id_, *suspended_nav_params_.get()));
 564     suspended_nav_params_.reset();
 565   }
 566 }
 567
 568 void RenderViewHostImpl::CancelSuspendedNavigations() {
 569   // Clear any state if a pending navigation is canceled or pre-empted.
 570   if (suspended_nav_params_)
 571     suspended_nav_params_.reset();
 572   navigations_suspended_ = false;
 573 }
 574
 575 void RenderViewHostImpl::SuppressDialogsUntilSwapOut() {
 576   Send(new ViewMsg_SuppressDialogsUntilSwapOut(GetRoutingID()));
 577 }
 578
 579 void RenderViewHostImpl::SwapOut() {
 580   SetState(STATE_WAITING_FOR_UNLOAD_ACK);
 581   unload_event_monitor_timeout_->Start(
 582       base::TimeDelta::FromMilliseconds(kUnloadTimeoutMS));
 583
 584   if (IsRenderViewLive()) {
 585     Send(new ViewMsg_SwapOut(GetRoutingID()));
 586   }
 587   delegate_->SwappedOut(this);
 588 }
 589
 590 void RenderViewHostImpl::OnSwapOutACK() {
 591   OnSwappedOut(false);
 592 }
 593
 594 void RenderViewHostImpl::OnSwappedOut(bool timed_out) {
 595   // Ignore spurious swap out ack.
 596   if (!IsWaitingForUnloadACK())
 597     return;
 598   unload_event_monitor_timeout_->Stop();
 599   if (timed_out) {
 600     base::ProcessHandle process_handle = GetProcess()->GetHandle();
 601     int views = 0;
 602
 603     // Count the number of active widget hosts for the process, which
 604     // is equivalent to views using the process as of this writing.
 605     scoped_ptr<RenderWidgetHostIterator> widgets(
 606       RenderWidgetHost::GetRenderWidgetHosts());
 607     while (RenderWidgetHost* widget = widgets->GetNextHost()) {
 608       if (widget->GetProcess()->GetID() == GetProcess()->GetID())
 609         ++views;
 610     }
 611
 612     if (!RenderProcessHost::run_renderer_in_process() &&
 613         process_handle && views <= 1) {
 614       // The process can safely be terminated, only if WebContents sets
 615       // SuddenTerminationAllowed, which indicates that the timer has expired.
 616       // This is not the case if we load data URLs or about:blank. The reason
 617       // is that those have no network requests and this code is hit without
 618       // setting the unresponsiveness timer. This allows a corner case where a
 619       // navigation to a data URL will leave a process running, if the
 620       // beforeunload handler completes fine, but the unload handler hangs.
 621       // At this time, the complexity to solve this edge case is not worthwhile.
 622       if (SuddenTerminationAllowed()) {
 623         // We should kill the process, but for now, just log the data so we can
 624         // diagnose the kill rate and investigate if separate timer is needed.
 625         // http://crbug.com/104346.
 626
 627         // Log a histogram point to help us diagnose how many of those kills
 628         // we have performed. 1 is the enum value for RendererType Normal for
 629         // the histogram.
 630         UMA_HISTOGRAM_PERCENTAGE(
 631             "BrowserRenderProcessHost.ChildKillsUnresponsive", 1);
 632       }
 633     }
 634   }
 635
 636   switch (rvh_state_) {
 637     case STATE_WAITING_FOR_UNLOAD_ACK:
 638       SetState(STATE_WAITING_FOR_COMMIT);
 639       break;
 640     case STATE_PENDING_SWAP_OUT:
 641       SetState(STATE_SWAPPED_OUT);
 642       break;
 643     case STATE_PENDING_SHUTDOWN:
 644       DCHECK(!pending_shutdown_on_swap_out_.is_null());
 645       pending_shutdown_on_swap_out_.Run();
 646       break;
 647     default:
 648       NOTREACHED();
 649   }
 650 }
 651
 652 void RenderViewHostImpl::WasSwappedOut(
 653     const base::Closure& pending_delete_on_swap_out) {
 654   Send(new ViewMsg_WasSwappedOut(GetRoutingID()));
 655   if (rvh_state_ == STATE_WAITING_FOR_UNLOAD_ACK) {
 656     SetState(STATE_PENDING_SWAP_OUT);
 657     if (!instance_->active_view_count())
 658       SetPendingShutdown(pending_delete_on_swap_out);
 659   } else if (rvh_state_ == STATE_WAITING_FOR_COMMIT) {
 660     SetState(STATE_SWAPPED_OUT);
 661   } else if (rvh_state_ == STATE_DEFAULT) {
 662     // When the RenderView is not live, the RenderFrameHostManager will call
 663     // CommitPending directly, without calling SwapOut on the old RVH. This will
 664     // cause WasSwappedOut to be called directly on the live old RVH.
 665     DCHECK(!IsRenderViewLive());
 666     SetState(STATE_SWAPPED_OUT);
 667   } else {
 668     NOTREACHED();
 669   }
 670 }
 671
 672 void RenderViewHostImpl::SetPendingShutdown(const base::Closure& on_swap_out) {
 673   pending_shutdown_on_swap_out_ = on_swap_out;
 674   SetState(STATE_PENDING_SHUTDOWN);
 675 }
 676
 677 void RenderViewHostImpl::ClosePage() {
 678   SetState(STATE_WAITING_FOR_CLOSE);
 679   StartHangMonitorTimeout(TimeDelta::FromMilliseconds(kUnloadTimeoutMS));
 680
 681   if (IsRenderViewLive()) {
 682     // Since we are sending an IPC message to the renderer, increase the event
 683     // count to prevent the hang monitor timeout from being stopped by input
 684     // event acknowledgements.
 685     increment_in_flight_event_count();
 686
 687     // TODO(creis): Should this be moved to Shutdown?  It may not be called for
 688     // RenderViewHosts that have been swapped out.
 689     NotificationService::current()->Notify(
 690         NOTIFICATION_RENDER_VIEW_HOST_WILL_CLOSE_RENDER_VIEW,
 691         Source<RenderViewHost>(this),
 692         NotificationService::NoDetails());
 693
 694     Send(new ViewMsg_ClosePage(GetRoutingID()));
 695   } else {
 696     // This RenderViewHost doesn't have a live renderer, so just skip the unload
 697     // event and close the page.
 698     ClosePageIgnoringUnloadEvents();
 699   }
 700 }
 701
 702 void RenderViewHostImpl::ClosePageIgnoringUnloadEvents() {
 703   StopHangMonitorTimeout();
 704   is_waiting_for_beforeunload_ack_ = false;
 705
 706   sudden_termination_allowed_ = true;
 707   delegate_->Close(this);
 708 }
 709
 710 bool RenderViewHostImpl::HasPendingCrossSiteRequest() {
 711   return CrossSiteRequestManager::GetInstance()->HasPendingCrossSiteRequest(
 712       GetProcess()->GetID(), GetRoutingID());
 713 }
 714
 715 void RenderViewHostImpl::SetHasPendingCrossSiteRequest(
 716     bool has_pending_request) {
 717   CrossSiteRequestManager::GetInstance()->SetHasPendingCrossSiteRequest(
 718       GetProcess()->GetID(), GetRoutingID(), has_pending_request);
 719 }
 720
 721 #if defined(OS_ANDROID)
 722 void RenderViewHostImpl::ActivateNearestFindResult(int request_id,
 723                                                    float x,
 724                                                    float y) {
 725   Send(new InputMsg_ActivateNearestFindResult(GetRoutingID(),
 726                                               request_id, x, y));
 727 }
 728
 729 void RenderViewHostImpl::RequestFindMatchRects(int current_version) {
 730   Send(new ViewMsg_FindMatchRects(GetRoutingID(), current_version));
 731 }
 732
 733 void RenderViewHostImpl::DisableFullscreenEncryptedMediaPlayback() {
 734   media_player_manager_->DisableFullscreenEncryptedMediaPlayback();
 735 }
 736 #endif
 737
 738 void RenderViewHostImpl::DragTargetDragEnter(
 739     const DropData& drop_data,
 740     const gfx::Point& client_pt,
 741     const gfx::Point& screen_pt,
 742     WebDragOperationsMask operations_allowed,
 743     int key_modifiers) {
 744   const int renderer_id = GetProcess()->GetID();
 745   ChildProcessSecurityPolicyImpl* policy =
 746       ChildProcessSecurityPolicyImpl::GetInstance();
 747
 748   // The URL could have been cobbled together from any highlighted text string,
 749   // and can't be interpreted as a capability.
 750   DropData filtered_data(drop_data);
 751   GetProcess()->FilterURL(true, &filtered_data.url);
 752
 753   // The filenames vector, on the other hand, does represent a capability to
 754   // access the given files.
 755   fileapi::IsolatedContext::FileInfoSet files;
 756   for (std::vector<DropData::FileInfo>::iterator iter(
 757            filtered_data.filenames.begin());
 758        iter != filtered_data.filenames.end(); ++iter) {
 759     // A dragged file may wind up as the value of an input element, or it
 760     // may be used as the target of a navigation instead.  We don't know
 761     // which will happen at this point, so generously grant both access
 762     // and request permissions to the specific file to cover both cases.
 763     // We do not give it the permission to request all file:// URLs.
 764     base::FilePath path =
 765         base::FilePath::FromUTF8Unsafe(base::UTF16ToUTF8(iter->path));
 766
 767     // Make sure we have the same display_name as the one we register.
 768     if (iter->display_name.empty()) {
 769       std::string name;
 770       files.AddPath(path, &name);
 771       iter->display_name = base::UTF8ToUTF16(name);
 772     } else {
 773       files.AddPathWithName(path, base::UTF16ToUTF8(iter->display_name));
 774     }
 775
 776     policy->GrantRequestSpecificFileURL(renderer_id,
 777                                         net::FilePathToFileURL(path));
 778
 779     // If the renderer already has permission to read these paths, we don't need
 780     // to re-grant them. This prevents problems with DnD for files in the CrOS
 781     // file manager--the file manager already had read/write access to those
 782     // directories, but dragging a file would cause the read/write access to be
 783     // overwritten with read-only access, making them impossible to delete or
 784     // rename until the renderer was killed.
 785     if (!policy->CanReadFile(renderer_id, path))
 786       policy->GrantReadFile(renderer_id, path);
 787   }
 788
 789   fileapi::IsolatedContext* isolated_context =
 790       fileapi::IsolatedContext::GetInstance();
 791   DCHECK(isolated_context);
 792   std::string filesystem_id = isolated_context->RegisterDraggedFileSystem(
 793       files);
 794   if (!filesystem_id.empty()) {
 795     // Grant the permission iff the ID is valid.
 796     policy->GrantReadFileSystem(renderer_id, filesystem_id);
 797   }
 798   filtered_data.filesystem_id = base::UTF8ToUTF16(filesystem_id);
 799
 800   Send(new DragMsg_TargetDragEnter(GetRoutingID(), filtered_data, client_pt,
 801                                    screen_pt, operations_allowed,
 802                                    key_modifiers));
 803 }
 804
 805 void RenderViewHostImpl::DragTargetDragOver(
 806     const gfx::Point& client_pt,
 807     const gfx::Point& screen_pt,
 808     WebDragOperationsMask operations_allowed,
 809     int key_modifiers) {
 810   Send(new DragMsg_TargetDragOver(GetRoutingID(), client_pt, screen_pt,
 811                                   operations_allowed, key_modifiers));
 812 }
 813
 814 void RenderViewHostImpl::DragTargetDragLeave() {
 815   Send(new DragMsg_TargetDragLeave(GetRoutingID()));
 816 }
 817
 818 void RenderViewHostImpl::DragTargetDrop(
 819     const gfx::Point& client_pt,
 820     const gfx::Point& screen_pt,
 821     int key_modifiers) {
 822   Send(new DragMsg_TargetDrop(GetRoutingID(), client_pt, screen_pt,
 823                               key_modifiers));
 824 }
 825
 826 void RenderViewHostImpl::DesktopNotificationPermissionRequestDone(
 827     int callback_context) {
 828   Send(new DesktopNotificationMsg_PermissionRequestDone(
 829       GetRoutingID(), callback_context));
 830 }
 831
 832 void RenderViewHostImpl::DesktopNotificationPostDisplay(int callback_context) {
 833   Send(new DesktopNotificationMsg_PostDisplay(GetRoutingID(),
 834                                               callback_context));
 835 }
 836
 837 void RenderViewHostImpl::DesktopNotificationPostError(
 838     int notification_id,
 839     const base::string16& message) {
 840   Send(new DesktopNotificationMsg_PostError(
 841       GetRoutingID(), notification_id, message));
 842 }
 843
 844 void RenderViewHostImpl::DesktopNotificationPostClose(int notification_id,
 845                                                       bool by_user) {
 846   Send(new DesktopNotificationMsg_PostClose(
 847       GetRoutingID(), notification_id, by_user));
 848 }
 849
 850 void RenderViewHostImpl::DesktopNotificationPostClick(int notification_id) {
 851   Send(new DesktopNotificationMsg_PostClick(GetRoutingID(), notification_id));
 852 }
 853
 854 void RenderViewHostImpl::ExecuteJavascriptInWebFrame(
 855     const base::string16& frame_xpath,
 856     const base::string16& jscript) {
 857   Send(new ViewMsg_ScriptEvalRequest(GetRoutingID(), frame_xpath, jscript,
 858                                      0, false));
 859 }
 860
 861 void RenderViewHostImpl::ExecuteJavascriptInWebFrameCallbackResult(
 862      const base::string16& frame_xpath,
 863      const base::string16& jscript,
 864      const JavascriptResultCallback& callback) {
 865   static int next_id = 1;
 866   int key = next_id++;
 867   Send(new ViewMsg_ScriptEvalRequest(GetRoutingID(), frame_xpath, jscript,
 868                                      key, true));
 869   javascript_callbacks_.insert(std::make_pair(key, callback));
 870 }
 871
 872 void RenderViewHostImpl::JavaScriptDialogClosed(
 873     IPC::Message* reply_msg,
 874     bool success,
 875     const base::string16& user_input) {
 876   GetProcess()->SetIgnoreInputEvents(false);
 877   bool is_waiting = is_waiting_for_beforeunload_ack_ || IsWaitingForUnloadACK();
 878
 879   // If we are executing as part of (before)unload event handling, we don't
 880   // want to use the regular hung_renderer_delay_ms_ if the user has agreed to
 881   // leave the current page. In this case, use the regular timeout value used
 882   // during the (before)unload handling.
 883   if (is_waiting) {
 884     StartHangMonitorTimeout(TimeDelta::FromMilliseconds(
 885         success ? kUnloadTimeoutMS : hung_renderer_delay_ms_));
 886   }
 887
 888   ViewHostMsg_RunJavaScriptMessage::WriteReplyParams(reply_msg,
 889                                                      success, user_input);
 890   Send(reply_msg);
 891
 892   // If we are waiting for an unload or beforeunload ack and the user has
 893   // suppressed messages, kill the tab immediately; a page that's spamming
 894   // alerts in onbeforeunload is presumably malicious, so there's no point in
 895   // continuing to run its script and dragging out the process.
 896   // This must be done after sending the reply since RenderView can't close
 897   // correctly while waiting for a response.
 898   if (is_waiting && are_javascript_messages_suppressed_)
 899     delegate_->RendererUnresponsive(
 900         this, is_waiting_for_beforeunload_ack_, IsWaitingForUnloadACK());
 901 }
 902
 903 void RenderViewHostImpl::DragSourceEndedAt(
 904     int client_x, int client_y, int screen_x, int screen_y,
 905     WebDragOperation operation) {
 906   Send(new DragMsg_SourceEndedOrMoved(
 907       GetRoutingID(),
 908       gfx::Point(client_x, client_y),
 909       gfx::Point(screen_x, screen_y),
 910       true, operation));
 911 }
 912
 913 void RenderViewHostImpl::DragSourceMovedTo(
 914     int client_x, int client_y, int screen_x, int screen_y) {
 915   Send(new DragMsg_SourceEndedOrMoved(
 916       GetRoutingID(),
 917       gfx::Point(client_x, client_y),
 918       gfx::Point(screen_x, screen_y),
 919       false, WebDragOperationNone));
 920 }
 921
 922 void RenderViewHostImpl::DragSourceSystemDragEnded() {
 923   Send(new DragMsg_SourceSystemDragEnded(GetRoutingID()));
 924 }
 925
 926 RenderFrameHost* RenderViewHostImpl::GetMainFrame() {
 927   return RenderFrameHost::FromID(GetProcess()->GetID(), main_frame_routing_id_);
 928 }
 929
 930 void RenderViewHostImpl::AllowBindings(int bindings_flags) {
 931   // Never grant any bindings to browser plugin guests.
 932   if (GetProcess()->IsGuest()) {
 933     NOTREACHED() << "Never grant bindings to a guest process.";
 934     return;
 935   }
 936
 937   // Ensure we aren't granting WebUI bindings to a process that has already
 938   // been used for non-privileged views.
 939   if (bindings_flags & BINDINGS_POLICY_WEB_UI &&
 940       GetProcess()->HasConnection() &&
 941       !ChildProcessSecurityPolicyImpl::GetInstance()->HasWebUIBindings(
 942           GetProcess()->GetID())) {
 943     // This process has no bindings yet. Make sure it does not have more
 944     // than this single active view.
 945     RenderProcessHostImpl* process =
 946         static_cast<RenderProcessHostImpl*>(GetProcess());
 947     if (process->GetActiveViewCount() > 1)
 948       return;
 949   }
 950
 951   if (bindings_flags & BINDINGS_POLICY_WEB_UI) {
 952     ChildProcessSecurityPolicyImpl::GetInstance()->GrantWebUIBindings(
 953         GetProcess()->GetID());
 954   }
 955
 956   enabled_bindings_ |= bindings_flags;
 957   if (renderer_initialized_)
 958     Send(new ViewMsg_AllowBindings(GetRoutingID(), enabled_bindings_));
 959 }
 960
 961 int RenderViewHostImpl::GetEnabledBindings() const {
 962   return enabled_bindings_;
 963 }
 964
 965 void RenderViewHostImpl::SetWebUIProperty(const std::string& name,
 966                                           const std::string& value) {
 967   // This is a sanity check before telling the renderer to enable the property.
 968   // It could lie and send the corresponding IPC messages anyway, but we will
 969   // not act on them if enabled_bindings_ doesn't agree. If we get here without
 970   // WebUI bindings, kill the renderer process.
 971   if (enabled_bindings_ & BINDINGS_POLICY_WEB_UI) {
 972     Send(new ViewMsg_SetWebUIProperty(GetRoutingID(), name, value));
 973   } else {
 974     RecordAction(
 975         base::UserMetricsAction("BindingsMismatchTerminate_RVH_WebUI"));
 976     base::KillProcess(
 977         GetProcess()->GetHandle(), content::RESULT_CODE_KILLED, false);
 978   }
 979 }
 980
 981 void RenderViewHostImpl::GotFocus() {
 982   RenderWidgetHostImpl::GotFocus();  // Notifies the renderer it got focus.
 983
 984   RenderViewHostDelegateView* view = delegate_->GetDelegateView();
 985   if (view)
 986     view->GotFocus();
 987 }
 988
 989 void RenderViewHostImpl::LostCapture() {
 990   RenderWidgetHostImpl::LostCapture();
 991   delegate_->LostCapture();
 992 }
 993
 994 void RenderViewHostImpl::LostMouseLock() {
 995   RenderWidgetHostImpl::LostMouseLock();
 996   delegate_->LostMouseLock();
 997 }
 998
 999 void RenderViewHostImpl::SetInitialFocus(bool reverse) {
1000   Send(new ViewMsg_SetInitialFocus(GetRoutingID(), reverse));
1001 }
1002
1003 void RenderViewHostImpl::FilesSelectedInChooser(
1004     const std::vector<ui::SelectedFileInfo>& files,
1005     FileChooserParams::Mode permissions) {
1006   // Grant the security access requested to the given files.
1007   for (size_t i = 0; i < files.size(); ++i) {
1008     const ui::SelectedFileInfo& file = files[i];
1009     if (permissions == FileChooserParams::Save) {
1010       ChildProcessSecurityPolicyImpl::GetInstance()->GrantCreateReadWriteFile(
1011           GetProcess()->GetID(), file.local_path);
1012     } else {
1013       ChildProcessSecurityPolicyImpl::GetInstance()->GrantReadFile(
1014           GetProcess()->GetID(), file.local_path);
1015     }
1016   }
1017   Send(new ViewMsg_RunFileChooserResponse(GetRoutingID(), files));
1018 }
1019
1020 void RenderViewHostImpl::DirectoryEnumerationFinished(
1021     int request_id,
1022     const std::vector<base::FilePath>& files) {
1023   // Grant the security access requested to the given files.
1024   for (std::vector<base::FilePath>::const_iterator file = files.begin();
1025        file != files.end(); ++file) {
1026     ChildProcessSecurityPolicyImpl::GetInstance()->GrantReadFile(
1027         GetProcess()->GetID(), *file);
1028   }
1029   Send(new ViewMsg_EnumerateDirectoryResponse(GetRoutingID(),
1030                                               request_id,
1031                                               files));
1032 }
1033
1034 void RenderViewHostImpl::LoadStateChanged(
1035     const GURL& url,
1036     const net::LoadStateWithParam& load_state,
1037     uint64 upload_position,
1038     uint64 upload_size) {
1039   delegate_->LoadStateChanged(url, load_state, upload_position, upload_size);
1040 }
1041
1042 bool RenderViewHostImpl::SuddenTerminationAllowed() const {
1043   return sudden_termination_allowed_ ||
1044       GetProcess()->SuddenTerminationAllowed();
1045 }
1046
1047 ///////////////////////////////////////////////////////////////////////////////
1048 // RenderViewHostImpl, IPC message handlers:
1049
1050 bool RenderViewHostImpl::OnMessageReceived(const IPC::Message& msg) {
1051   if (!BrowserMessageFilter::CheckCanDispatchOnUI(msg, this))
1052     return true;
1053
1054   // Filter out most IPC messages if this renderer is swapped out.
1055   // We still want to handle certain ACKs to keep our state consistent.
1056   if (IsSwappedOut()) {
1057     if (!SwappedOutMessages::CanHandleWhileSwappedOut(msg)) {
1058       // If this is a synchronous message and we decided not to handle it,
1059       // we must send an error reply, or else the renderer will be stuck
1060       // and won't respond to future requests.
1061       if (msg.is_sync()) {
1062         IPC::Message* reply = IPC::SyncMessage::GenerateReply(&msg);
1063         reply->set_reply_error();
1064         Send(reply);
1065       }
1066       // Don't continue looking for someone to handle it.
1067       return true;
1068     }
1069   }
1070
1071   if (delegate_->OnMessageReceived(this, msg))
1072     return true;
1073
1074   bool handled = true;
1075   bool msg_is_ok = true;
1076   IPC_BEGIN_MESSAGE_MAP_EX(RenderViewHostImpl, msg, msg_is_ok)
1077     IPC_MESSAGE_HANDLER(ViewHostMsg_ShowView, OnShowView)
1078     IPC_MESSAGE_HANDLER(ViewHostMsg_ShowWidget, OnShowWidget)
1079     IPC_MESSAGE_HANDLER(ViewHostMsg_ShowFullscreenWidget,
1080                         OnShowFullscreenWidget)
1081     IPC_MESSAGE_HANDLER_DELAY_REPLY(ViewHostMsg_RunModal, OnRunModal)
1082     IPC_MESSAGE_HANDLER(ViewHostMsg_RenderViewReady, OnRenderViewReady)
1083     IPC_MESSAGE_HANDLER(ViewHostMsg_RenderProcessGone, OnRenderProcessGone)
1084     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateState, OnUpdateState)
1085     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateTitle, OnUpdateTitle)
1086     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateEncoding, OnUpdateEncoding)
1087     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateTargetURL, OnUpdateTargetURL)
1088     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateInspectorSetting,
1089                         OnUpdateInspectorSetting)
1090     IPC_MESSAGE_HANDLER(ViewHostMsg_Close, OnClose)
1091     IPC_MESSAGE_HANDLER(ViewHostMsg_RequestMove, OnRequestMove)
1092     IPC_MESSAGE_HANDLER(ViewHostMsg_DidChangeLoadProgress,
1093                         OnDidChangeLoadProgress)
1094     IPC_MESSAGE_HANDLER(ViewHostMsg_DidDisownOpener, OnDidDisownOpener)
1095     IPC_MESSAGE_HANDLER(ViewHostMsg_DocumentAvailableInMainFrame,
1096                         OnDocumentAvailableInMainFrame)
1097     IPC_MESSAGE_HANDLER(ViewHostMsg_DocumentOnLoadCompletedInMainFrame,
1098                         OnDocumentOnLoadCompletedInMainFrame)
1099     IPC_MESSAGE_HANDLER(ViewHostMsg_ToggleFullscreen, OnToggleFullscreen)
1100     IPC_MESSAGE_HANDLER(ViewHostMsg_DidContentsPreferredSizeChange,
1101                         OnDidContentsPreferredSizeChange)
1102     IPC_MESSAGE_HANDLER(ViewHostMsg_DidChangeScrollOffset,
1103                         OnDidChangeScrollOffset)
1104     IPC_MESSAGE_HANDLER(ViewHostMsg_DidChangeScrollbarsForMainFrame,
1105                         OnDidChangeScrollbarsForMainFrame)
1106     IPC_MESSAGE_HANDLER(ViewHostMsg_DidChangeScrollOffsetPinningForMainFrame,
1107                         OnDidChangeScrollOffsetPinningForMainFrame)
1108     IPC_MESSAGE_HANDLER(ViewHostMsg_DidChangeNumWheelEvents,
1109                         OnDidChangeNumWheelEvents)
1110     IPC_MESSAGE_HANDLER(ViewHostMsg_RouteCloseEvent,
1111                         OnRouteCloseEvent)
1112     IPC_MESSAGE_HANDLER(ViewHostMsg_RouteMessageEvent, OnRouteMessageEvent)
1113     IPC_MESSAGE_HANDLER_DELAY_REPLY(ViewHostMsg_RunJavaScriptMessage,
1114                                     OnRunJavaScriptMessage)
1115     IPC_MESSAGE_HANDLER_DELAY_REPLY(ViewHostMsg_RunBeforeUnloadConfirm,
1116                                     OnRunBeforeUnloadConfirm)
1117     IPC_MESSAGE_HANDLER(DragHostMsg_StartDragging, OnStartDragging)
1118     IPC_MESSAGE_HANDLER(DragHostMsg_UpdateDragCursor, OnUpdateDragCursor)
1119     IPC_MESSAGE_HANDLER(DragHostMsg_TargetDrop_ACK, OnTargetDropACK)
1120     IPC_MESSAGE_HANDLER(ViewHostMsg_TakeFocus, OnTakeFocus)
1121     IPC_MESSAGE_HANDLER(ViewHostMsg_FocusedNodeChanged, OnFocusedNodeChanged)
1122     IPC_MESSAGE_HANDLER(ViewHostMsg_AddMessageToConsole, OnAddMessageToConsole)
1123     IPC_MESSAGE_HANDLER(ViewHostMsg_ClosePage_ACK, OnClosePageACK)
1124     IPC_MESSAGE_HANDLER(ViewHostMsg_SwapOut_ACK, OnSwapOutACK)
1125     IPC_MESSAGE_HANDLER(ViewHostMsg_SelectionChanged, OnSelectionChanged)
1126     IPC_MESSAGE_HANDLER(ViewHostMsg_SelectionBoundsChanged,
1127                         OnSelectionBoundsChanged)
1128 #if defined(OS_ANDROID)
1129     IPC_MESSAGE_HANDLER(ViewHostMsg_SelectionRootBoundsChanged,
1130                         OnSelectionRootBoundsChanged)
1131 #endif
1132     IPC_MESSAGE_HANDLER(ViewHostMsg_ScriptEvalResponse, OnScriptEvalResponse)
1133     IPC_MESSAGE_HANDLER(ViewHostMsg_DidZoomURL, OnDidZoomURL)
1134     IPC_MESSAGE_HANDLER(DesktopNotificationHostMsg_RequestPermission,
1135                         OnRequestDesktopNotificationPermission)
1136     IPC_MESSAGE_HANDLER(DesktopNotificationHostMsg_Show,
1137                         OnShowDesktopNotification)
1138     IPC_MESSAGE_HANDLER(DesktopNotificationHostMsg_Cancel,
1139                         OnCancelDesktopNotification)
1140 #if defined(OS_MACOSX) || defined(OS_ANDROID)
1141     IPC_MESSAGE_HANDLER(ViewHostMsg_ShowPopup, OnShowPopup)
1142 #endif
1143     IPC_MESSAGE_HANDLER(ViewHostMsg_RunFileChooser, OnRunFileChooser)
1144     IPC_MESSAGE_HANDLER(ViewHostMsg_DidAccessInitialDocument,
1145                         OnDidAccessInitialDocument)
1146     IPC_MESSAGE_HANDLER(AccessibilityHostMsg_Events, OnAccessibilityEvents)
1147     IPC_MESSAGE_HANDLER(AccessibilityHostMsg_LocationChanges,
1148                         OnAccessibilityLocationChanges)
1149     IPC_MESSAGE_HANDLER(ViewHostMsg_FocusedNodeTouched, OnFocusedNodeTouched)
1150     // Have the super handle all other messages.
1151     IPC_MESSAGE_UNHANDLED(
1152         handled = RenderWidgetHostImpl::OnMessageReceived(msg))
1153   IPC_END_MESSAGE_MAP_EX()
1154
1155   if (!msg_is_ok) {
1156     // The message had a handler, but its de-serialization failed.
1157     // Kill the renderer.
1158     RecordAction(base::UserMetricsAction("BadMessageTerminate_RVH"));
1159     GetProcess()->ReceivedBadMessage();
1160   }
1161
1162   return handled;
1163 }
1164
1165 void RenderViewHostImpl::Init() {
1166   RenderWidgetHostImpl::Init();
1167 }
1168
1169 void RenderViewHostImpl::Shutdown() {
1170   // If we are being run modally (see RunModal), then we need to cleanup.
1171   if (run_modal_reply_msg_) {
1172     Send(run_modal_reply_msg_);
1173     run_modal_reply_msg_ = NULL;
1174     RenderViewHostImpl* opener =
1175         RenderViewHostImpl::FromID(GetProcess()->GetID(), run_modal_opener_id_);
1176     if (opener) {
1177       opener->StartHangMonitorTimeout(TimeDelta::FromMilliseconds(
1178           hung_renderer_delay_ms_));
1179       // Balance out the decrement when we got created.
1180       opener->increment_in_flight_event_count();
1181     }
1182     run_modal_opener_id_ = MSG_ROUTING_NONE;
1183   }
1184
1185   RenderWidgetHostImpl::Shutdown();
1186 }
1187
1188 bool RenderViewHostImpl::IsRenderView() const {
1189   return true;
1190 }
1191
1192 void RenderViewHostImpl::CreateNewWindow(
1193     int route_id,
1194     int main_frame_route_id,
1195     const ViewHostMsg_CreateWindow_Params& params,
1196     SessionStorageNamespace* session_storage_namespace) {
1197   ViewHostMsg_CreateWindow_Params validated_params(params);
1198   GetProcess()->FilterURL(false, &validated_params.target_url);
1199   GetProcess()->FilterURL(false, &validated_params.opener_url);
1200   GetProcess()->FilterURL(true, &validated_params.opener_security_origin);
1201
1202   delegate_->CreateNewWindow(
1203       GetProcess()->GetID(), route_id, main_frame_route_id, validated_params,
1204       session_storage_namespace);
1205 }
1206
1207 void RenderViewHostImpl::CreateNewWidget(int route_id,
1208                                      blink::WebPopupType popup_type) {
1209   delegate_->CreateNewWidget(GetProcess()->GetID(), route_id, popup_type);
1210 }
1211
1212 void RenderViewHostImpl::CreateNewFullscreenWidget(int route_id) {
1213   delegate_->CreateNewFullscreenWidget(GetProcess()->GetID(), route_id);
1214 }
1215
1216 void RenderViewHostImpl::OnShowView(int route_id,
1217                                     WindowOpenDisposition disposition,
1218                                     const gfx::Rect& initial_pos,
1219                                     bool user_gesture) {
1220   if (IsRVHStateActive(rvh_state_)) {
1221     delegate_->ShowCreatedWindow(
1222         route_id, disposition, initial_pos, user_gesture);
1223   }
1224   Send(new ViewMsg_Move_ACK(route_id));
1225 }
1226
1227 void RenderViewHostImpl::OnShowWidget(int route_id,
1228                                       const gfx::Rect& initial_pos) {
1229   if (IsRVHStateActive(rvh_state_))
1230     delegate_->ShowCreatedWidget(route_id, initial_pos);
1231   Send(new ViewMsg_Move_ACK(route_id));
1232 }
1233
1234 void RenderViewHostImpl::OnShowFullscreenWidget(int route_id) {
1235   if (IsRVHStateActive(rvh_state_))
1236     delegate_->ShowCreatedFullscreenWidget(route_id);
1237   Send(new ViewMsg_Move_ACK(route_id));
1238 }
1239
1240 void RenderViewHostImpl::OnRunModal(int opener_id, IPC::Message* reply_msg) {
1241   DCHECK(!run_modal_reply_msg_);
1242   run_modal_reply_msg_ = reply_msg;
1243   run_modal_opener_id_ = opener_id;
1244
1245   RecordAction(base::UserMetricsAction("ShowModalDialog"));
1246
1247   RenderViewHostImpl* opener =
1248       RenderViewHostImpl::FromID(GetProcess()->GetID(), run_modal_opener_id_);
1249   if (opener) {
1250     opener->StopHangMonitorTimeout();
1251     // The ack for the mouse down won't come until the dialog closes, so fake it
1252     // so that we don't get a timeout.
1253     opener->decrement_in_flight_event_count();
1254   }
1255
1256   // TODO(darin): Bug 1107929: Need to inform our delegate to show this view in
1257   // an app-modal fashion.
1258 }
1259
1260 void RenderViewHostImpl::OnRenderViewReady() {
1261   render_view_termination_status_ = base::TERMINATION_STATUS_STILL_RUNNING;
1262   SendScreenRects();
1263   WasResized();
1264   delegate_->RenderViewReady(this);
1265 }
1266
1267 void RenderViewHostImpl::OnRenderProcessGone(int status, int exit_code) {
1268   // Keep the termination status so we can get at it later when we
1269   // need to know why it died.
1270   render_view_termination_status_ =
1271       static_cast<base::TerminationStatus>(status);
1272
1273   // Reset frame tree state associated with this process.
1274   delegate_->GetFrameTree()->RenderProcessGone(this);
1275
1276   // Our base class RenderWidgetHost needs to reset some stuff.
1277   RendererExited(render_view_termination_status_, exit_code);
1278
1279   delegate_->RenderViewTerminated(this,
1280                                   static_cast<base::TerminationStatus>(status),
1281                                   exit_code);
1282 }
1283
1284 void RenderViewHostImpl::OnUpdateState(int32 page_id, const PageState& state) {
1285   // Without this check, the renderer can trick the browser into using
1286   // filenames it can't access in a future session restore.
1287   if (!CanAccessFilesOfPageState(state)) {
1288     GetProcess()->ReceivedBadMessage();
1289     return;
1290   }
1291
1292   delegate_->UpdateState(this, page_id, state);
1293 }
1294
1295 void RenderViewHostImpl::OnUpdateTitle(
1296     int32 page_id,
1297     const base::string16& title,
1298     blink::WebTextDirection title_direction) {
1299   if (title.length() > kMaxTitleChars) {
1300     NOTREACHED() << "Renderer sent too many characters in title.";
1301     return;
1302   }
1303
1304   delegate_->UpdateTitle(this, page_id, title,
1305                          WebTextDirectionToChromeTextDirection(
1306                              title_direction));
1307 }
1308
1309 void RenderViewHostImpl::OnUpdateEncoding(const std::string& encoding_name) {
1310   delegate_->UpdateEncoding(this, encoding_name);
1311 }
1312
1313 void RenderViewHostImpl::OnUpdateTargetURL(int32 page_id, const GURL& url) {
1314   if (IsRVHStateActive(rvh_state_))
1315     delegate_->UpdateTargetURL(page_id, url);
1316
1317   // Send a notification back to the renderer that we are ready to
1318   // receive more target urls.
1319   Send(new ViewMsg_UpdateTargetURL_ACK(GetRoutingID()));
1320 }
1321
1322 void RenderViewHostImpl::OnUpdateInspectorSetting(
1323     const std::string& key, const std::string& value) {
1324   GetContentClient()->browser()->UpdateInspectorSetting(
1325       this, key, value);
1326 }
1327
1328 void RenderViewHostImpl::OnClose() {
1329   // If the renderer is telling us to close, it has already run the unload
1330   // events, and we can take the fast path.
1331   ClosePageIgnoringUnloadEvents();
1332 }
1333
1334 void RenderViewHostImpl::OnRequestMove(const gfx::Rect& pos) {
1335   if (IsRVHStateActive(rvh_state_))
1336     delegate_->RequestMove(pos);
1337   Send(new ViewMsg_Move_ACK(GetRoutingID()));
1338 }
1339
1340 void RenderViewHostImpl::OnDidChangeLoadProgress(double load_progress) {
1341   delegate_->DidChangeLoadProgress(load_progress);
1342 }
1343
1344 void RenderViewHostImpl::OnDidDisownOpener() {
1345   delegate_->DidDisownOpener(this);
1346 }
1347
1348 void RenderViewHostImpl::OnDocumentAvailableInMainFrame() {
1349   delegate_->DocumentAvailableInMainFrame(this);
1350 }
1351
1352 void RenderViewHostImpl::OnDocumentOnLoadCompletedInMainFrame(
1353     int32 page_id) {
1354   delegate_->DocumentOnLoadCompletedInMainFrame(this, page_id);
1355 }
1356
1357 void RenderViewHostImpl::OnToggleFullscreen(bool enter_fullscreen) {
1358   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
1359   delegate_->ToggleFullscreenMode(enter_fullscreen);
1360   // We need to notify the contents that its fullscreen state has changed. This
1361   // is done as part of the resize message.
1362   WasResized();
1363 }
1364
1365 void RenderViewHostImpl::OnDidContentsPreferredSizeChange(
1366     const gfx::Size& new_size) {
1367   delegate_->UpdatePreferredSize(new_size);
1368 }
1369
1370 void RenderViewHostImpl::OnRenderAutoResized(const gfx::Size& new_size) {
1371   delegate_->ResizeDueToAutoResize(new_size);
1372 }
1373
1374 void RenderViewHostImpl::OnDidChangeScrollOffset() {
1375   if (view_)
1376     view_->ScrollOffsetChanged();
1377 }
1378
1379 void RenderViewHostImpl::OnDidChangeScrollbarsForMainFrame(
1380     bool has_horizontal_scrollbar, bool has_vertical_scrollbar) {
1381   if (view_)
1382     view_->SetHasHorizontalScrollbar(has_horizontal_scrollbar);
1383 }
1384
1385 void RenderViewHostImpl::OnDidChangeScrollOffsetPinningForMainFrame(
1386     bool is_pinned_to_left, bool is_pinned_to_right) {
1387   if (view_)
1388     view_->SetScrollOffsetPinning(is_pinned_to_left, is_pinned_to_right);
1389 }
1390
1391 void RenderViewHostImpl::OnDidChangeNumWheelEvents(int count) {
1392 }
1393
1394 void RenderViewHostImpl::OnSelectionChanged(const base::string16& text,
1395                                             size_t offset,
1396                                             const gfx::Range& range) {
1397   if (view_)
1398     view_->SelectionChanged(text, offset, range);
1399 }
1400
1401 void RenderViewHostImpl::OnSelectionBoundsChanged(
1402     const ViewHostMsg_SelectionBounds_Params& params) {
1403   if (view_) {
1404     view_->SelectionBoundsChanged(params);
1405   }
1406 }
1407
1408 #if defined(OS_ANDROID)
1409 void RenderViewHostImpl::OnSelectionRootBoundsChanged(
1410     const gfx::Rect& bounds) {
1411   if (view_) {
1412     view_->SelectionRootBoundsChanged(bounds);
1413   }
1414 }
1415 #endif
1416
1417 void RenderViewHostImpl::OnRouteCloseEvent() {
1418   // Have the delegate route this to the active RenderViewHost.
1419   delegate_->RouteCloseEvent(this);
1420 }
1421
1422 void RenderViewHostImpl::OnRouteMessageEvent(
1423     const ViewMsg_PostMessage_Params& params) {
1424   // Give to the delegate to route to the active RenderViewHost.
1425   delegate_->RouteMessageEvent(this, params);
1426 }
1427
1428 void RenderViewHostImpl::OnRunJavaScriptMessage(
1429     const base::string16& message,
1430     const base::string16& default_prompt,
1431     const GURL& frame_url,
1432     JavaScriptMessageType type,
1433     IPC::Message* reply_msg) {
1434   // While a JS message dialog is showing, tabs in the same process shouldn't
1435   // process input events.
1436   GetProcess()->SetIgnoreInputEvents(true);
1437   StopHangMonitorTimeout();
1438   delegate_->RunJavaScriptMessage(this, message, default_prompt, frame_url,
1439                                   type, reply_msg,
1440                                   &are_javascript_messages_suppressed_);
1441 }
1442
1443 void RenderViewHostImpl::OnRunBeforeUnloadConfirm(const GURL& frame_url,
1444                                                   const base::string16& message,
1445                                                   bool is_reload,
1446                                                   IPC::Message* reply_msg) {
1447   // While a JS before unload dialog is showing, tabs in the same process
1448   // shouldn't process input events.
1449   GetProcess()->SetIgnoreInputEvents(true);
1450   StopHangMonitorTimeout();
1451   delegate_->RunBeforeUnloadConfirm(this, message, is_reload, reply_msg);
1452 }
1453
1454 void RenderViewHostImpl::OnStartDragging(
1455     const DropData& drop_data,
1456     WebDragOperationsMask drag_operations_mask,
1457     const SkBitmap& bitmap,
1458     const gfx::Vector2d& bitmap_offset_in_dip,
1459     const DragEventSourceInfo& event_info) {
1460   RenderViewHostDelegateView* view = delegate_->GetDelegateView();
1461   if (!view)
1462     return;
1463
1464   DropData filtered_data(drop_data);
1465   RenderProcessHost* process = GetProcess();
1466   ChildProcessSecurityPolicyImpl* policy =
1467       ChildProcessSecurityPolicyImpl::GetInstance();
1468
1469   // Allow drag of Javascript URLs to enable bookmarklet drag to bookmark bar.
1470   if (!filtered_data.url.SchemeIs(kJavaScriptScheme))
1471     process->FilterURL(true, &filtered_data.url);
1472   process->FilterURL(false, &filtered_data.html_base_url);
1473   // Filter out any paths that the renderer didn't have access to. This prevents
1474   // the following attack on a malicious renderer:
1475   // 1. StartDragging IPC sent with renderer-specified filesystem paths that it
1476   //    doesn't have read permissions for.
1477   // 2. We initiate a native DnD operation.
1478   // 3. DnD operation immediately ends since mouse is not held down. DnD events
1479   //    still fire though, which causes read permissions to be granted to the
1480   //    renderer for any file paths in the drop.
1481   filtered_data.filenames.clear();
1482   for (std::vector<DropData::FileInfo>::const_iterator it =
1483            drop_data.filenames.begin();
1484        it != drop_data.filenames.end(); ++it) {
1485     base::FilePath path(
1486         base::FilePath::FromUTF8Unsafe(base::UTF16ToUTF8(it->path)));
1487     if (policy->CanReadFile(GetProcess()->GetID(), path))
1488       filtered_data.filenames.push_back(*it);
1489   }
1490   float scale = ui::GetImageScale(GetScaleFactorForView(GetView()));
1491   gfx::ImageSkia image(gfx::ImageSkiaRep(bitmap, scale));
1492   view->StartDragging(filtered_data, drag_operations_mask, image,
1493       bitmap_offset_in_dip, event_info);
1494 }
1495
1496 void RenderViewHostImpl::OnUpdateDragCursor(WebDragOperation current_op) {
1497   RenderViewHostDelegateView* view = delegate_->GetDelegateView();
1498   if (view)
1499     view->UpdateDragCursor(current_op);
1500 }
1501
1502 void RenderViewHostImpl::OnTargetDropACK() {
1503   NotificationService::current()->Notify(
1504       NOTIFICATION_RENDER_VIEW_HOST_DID_RECEIVE_DRAG_TARGET_DROP_ACK,
1505       Source<RenderViewHost>(this),
1506       NotificationService::NoDetails());
1507 }
1508
1509 void RenderViewHostImpl::OnTakeFocus(bool reverse) {
1510   RenderViewHostDelegateView* view = delegate_->GetDelegateView();
1511   if (view)
1512     view->TakeFocus(reverse);
1513 }
1514
1515 void RenderViewHostImpl::OnFocusedNodeChanged(bool is_editable_node) {
1516   if (view_)
1517     view_->FocusedNodeChanged(is_editable_node);
1518 #if defined(OS_WIN)
1519   if (!is_editable_node && virtual_keyboard_requested_) {
1520     virtual_keyboard_requested_ = false;
1521     BrowserThread::PostDelayedTask(
1522         BrowserThread::UI, FROM_HERE,
1523         base::Bind(base::IgnoreResult(&DismissVirtualKeyboardTask)),
1524         TimeDelta::FromMilliseconds(kVirtualKeyboardDisplayWaitTimeoutMs));
1525   }
1526 #endif
1527   NotificationService::current()->Notify(
1528       NOTIFICATION_FOCUS_CHANGED_IN_PAGE,
1529       Source<RenderViewHost>(this),
1530       Details<const bool>(&is_editable_node));
1531 }
1532
1533 void RenderViewHostImpl::OnAddMessageToConsole(
1534     int32 level,
1535     const base::string16& message,
1536     int32 line_no,
1537     const base::string16& source_id) {
1538   if (delegate_->AddMessageToConsole(level, message, line_no, source_id))
1539     return;
1540
1541   // Pass through log level only on WebUI pages to limit console spew.
1542   int32 resolved_level = HasWebUIScheme(delegate_->GetURL()) ? level : 0;
1543
1544   if (resolved_level >= ::logging::GetMinLogLevel()) {
1545     logging::LogMessage("CONSOLE", line_no, resolved_level).stream() << "\"" <<
1546         message << "\", source: " << source_id << " (" << line_no << ")";
1547   }
1548 }
1549
1550 void RenderViewHostImpl::OnUserGesture() {
1551   delegate_->OnUserGesture();
1552 }
1553
1554 void RenderViewHostImpl::OnClosePageACK() {
1555   decrement_in_flight_event_count();
1556   ClosePageIgnoringUnloadEvents();
1557 }
1558
1559 void RenderViewHostImpl::NotifyRendererUnresponsive() {
1560   delegate_->RendererUnresponsive(
1561       this, is_waiting_for_beforeunload_ack_, IsWaitingForUnloadACK());
1562 }
1563
1564 void RenderViewHostImpl::NotifyRendererResponsive() {
1565   delegate_->RendererResponsive(this);
1566 }
1567
1568 void RenderViewHostImpl::RequestToLockMouse(bool user_gesture,
1569                                             bool last_unlocked_by_target) {
1570   delegate_->RequestToLockMouse(user_gesture, last_unlocked_by_target);
1571 }
1572
1573 bool RenderViewHostImpl::IsFullscreen() const {
1574   return delegate_->IsFullscreenForCurrentTab();
1575 }
1576
1577 void RenderViewHostImpl::OnFocus() {
1578   // Note: We allow focus and blur from swapped out RenderViewHosts, even when
1579   // the active RenderViewHost is in a different BrowsingInstance (e.g., WebUI).
1580   delegate_->Activate();
1581 }
1582
1583 void RenderViewHostImpl::OnBlur() {
1584   delegate_->Deactivate();
1585 }
1586
1587 gfx::Rect RenderViewHostImpl::GetRootWindowResizerRect() const {
1588   return delegate_->GetRootWindowResizerRect();
1589 }
1590
1591 void RenderViewHostImpl::ForwardMouseEvent(
1592     const blink::WebMouseEvent& mouse_event) {
1593
1594   // We make a copy of the mouse event because
1595   // RenderWidgetHost::ForwardMouseEvent will delete |mouse_event|.
1596   blink::WebMouseEvent event_copy(mouse_event);
1597   RenderWidgetHostImpl::ForwardMouseEvent(event_copy);
1598
1599   switch (event_copy.type) {
1600     case WebInputEvent::MouseMove:
1601       delegate_->HandleMouseMove();
1602       break;
1603     case WebInputEvent::MouseLeave:
1604       delegate_->HandleMouseLeave();
1605       break;
1606     case WebInputEvent::MouseDown:
1607       delegate_->HandleMouseDown();
1608       break;
1609     case WebInputEvent::MouseWheel:
1610       if (ignore_input_events())
1611         delegate_->OnIgnoredUIEvent();
1612       break;
1613     case WebInputEvent::MouseUp:
1614       delegate_->HandleMouseUp();
1615     default:
1616       // For now, we don't care about the rest.
1617       break;
1618   }
1619 }
1620
1621 void RenderViewHostImpl::OnPointerEventActivate() {
1622   delegate_->HandlePointerActivate();
1623 }
1624
1625 void RenderViewHostImpl::ForwardKeyboardEvent(
1626     const NativeWebKeyboardEvent& key_event) {
1627   if (ignore_input_events()) {
1628     if (key_event.type == WebInputEvent::RawKeyDown)
1629       delegate_->OnIgnoredUIEvent();
1630     return;
1631   }
1632   RenderWidgetHostImpl::ForwardKeyboardEvent(key_event);
1633 }
1634
1635 #if defined(OS_ANDROID)
1636 void RenderViewHostImpl::DidSelectPopupMenuItems(
1637     const std::vector<int>& selected_indices) {
1638   Send(new ViewMsg_SelectPopupMenuItems(GetRoutingID(), false,
1639                                         selected_indices));
1640 }
1641
1642 void RenderViewHostImpl::DidCancelPopupMenu() {
1643   Send(new ViewMsg_SelectPopupMenuItems(GetRoutingID(), true,
1644                                         std::vector<int>()));
1645 }
1646 #endif
1647
1648 #if defined(OS_MACOSX)
1649 void RenderViewHostImpl::DidSelectPopupMenuItem(int selected_index) {
1650   Send(new ViewMsg_SelectPopupMenuItem(GetRoutingID(), selected_index));
1651 }
1652
1653 void RenderViewHostImpl::DidCancelPopupMenu() {
1654   Send(new ViewMsg_SelectPopupMenuItem(GetRoutingID(), -1));
1655 }
1656 #endif
1657
1658 void RenderViewHostImpl::SendOrientationChangeEvent(int orientation) {
1659   Send(new ViewMsg_OrientationChangeEvent(GetRoutingID(), orientation));
1660 }
1661
1662 void RenderViewHostImpl::ToggleSpeechInput() {
1663   Send(new InputTagSpeechMsg_ToggleSpeechInput(GetRoutingID()));
1664 }
1665
1666 bool RenderViewHostImpl::IsWaitingForUnloadACK() const {
1667   return rvh_state_ == STATE_WAITING_FOR_UNLOAD_ACK ||
1668          rvh_state_ == STATE_WAITING_FOR_CLOSE ||
1669          rvh_state_ == STATE_PENDING_SHUTDOWN ||
1670          rvh_state_ == STATE_PENDING_SWAP_OUT;
1671 }
1672
1673 void RenderViewHostImpl::ExitFullscreen() {
1674   RejectMouseLockOrUnlockIfNecessary();
1675   // Notify delegate_ and renderer of fullscreen state change.
1676   OnToggleFullscreen(false);
1677 }
1678
1679 WebPreferences RenderViewHostImpl::GetWebkitPreferences() {
1680   return delegate_->GetWebkitPrefs();
1681 }
1682
1683 void RenderViewHostImpl::DisownOpener() {
1684   // This should only be called when swapped out.
1685   DCHECK(IsSwappedOut());
1686
1687   Send(new ViewMsg_DisownOpener(GetRoutingID()));
1688 }
1689
1690 void RenderViewHostImpl::SetAccessibilityCallbackForTesting(
1691     const base::Callback<void(ui::AXEvent)>& callback) {
1692   accessibility_testing_callback_ = callback;
1693 }
1694
1695 void RenderViewHostImpl::UpdateWebkitPreferences(const WebPreferences& prefs) {
1696   Send(new ViewMsg_UpdateWebPreferences(GetRoutingID(), prefs));
1697 }
1698
1699 void RenderViewHostImpl::GetAudioOutputControllers(
1700     const GetAudioOutputControllersCallback& callback) const {
1701   AudioRendererHost* audio_host =
1702       static_cast<RenderProcessHostImpl*>(GetProcess())->audio_renderer_host();
1703   audio_host->GetOutputControllers(GetRoutingID(), callback);
1704 }
1705
1706 void RenderViewHostImpl::ClearFocusedElement() {
1707   Send(new ViewMsg_ClearFocusedElement(GetRoutingID()));
1708 }
1709
1710 void RenderViewHostImpl::Zoom(PageZoom zoom) {
1711   Send(new ViewMsg_Zoom(GetRoutingID(), zoom));
1712 }
1713
1714 void RenderViewHostImpl::ReloadFrame() {
1715   Send(new ViewMsg_ReloadFrame(GetRoutingID()));
1716 }
1717
1718 void RenderViewHostImpl::DisableScrollbarsForThreshold(const gfx::Size& size) {
1719   Send(new ViewMsg_DisableScrollbarsForSmallWindows(GetRoutingID(), size));
1720 }
1721
1722 void RenderViewHostImpl::EnablePreferredSizeMode() {
1723   Send(new ViewMsg_EnablePreferredSizeChangedMode(GetRoutingID()));
1724 }
1725
1726 void RenderViewHostImpl::EnableAutoResize(const gfx::Size& min_size,
1727                                           const gfx::Size& max_size) {
1728   SetShouldAutoResize(true);
1729   Send(new ViewMsg_EnableAutoResize(GetRoutingID(), min_size, max_size));
1730 }
1731
1732 void RenderViewHostImpl::DisableAutoResize(const gfx::Size& new_size) {
1733   SetShouldAutoResize(false);
1734   Send(new ViewMsg_DisableAutoResize(GetRoutingID(), new_size));
1735 }
1736
1737 void RenderViewHostImpl::CopyImageAt(int x, int y) {
1738   Send(new ViewMsg_CopyImageAt(GetRoutingID(), x, y));
1739 }
1740
1741 void RenderViewHostImpl::ExecuteMediaPlayerActionAtLocation(
1742   const gfx::Point& location, const blink::WebMediaPlayerAction& action) {
1743   Send(new ViewMsg_MediaPlayerActionAt(GetRoutingID(), location, action));
1744 }
1745
1746 void RenderViewHostImpl::ExecutePluginActionAtLocation(
1747   const gfx::Point& location, const blink::WebPluginAction& action) {
1748   Send(new ViewMsg_PluginActionAt(GetRoutingID(), location, action));
1749 }
1750
1751 void RenderViewHostImpl::NotifyMoveOrResizeStarted() {
1752   Send(new ViewMsg_MoveOrResizeStarted(GetRoutingID()));
1753 }
1754
1755 void RenderViewHostImpl::OnAccessibilityEvents(
1756     const std::vector<AccessibilityHostMsg_EventParams>& params) {
1757   if ((accessibility_mode() & AccessibilityModeFlagPlatform) && view_ &&
1758       IsRVHStateActive(rvh_state_)) {
1759     view_->CreateBrowserAccessibilityManagerIfNeeded();
1760     BrowserAccessibilityManager* manager =
1761         view_->GetBrowserAccessibilityManager();
1762     if (manager)
1763       manager->OnAccessibilityEvents(params);
1764
1765     // TODO(aboxhall, dtseng): Only send notification when accessibility mode
1766     // extension enabled.
1767     std::vector<AXEventNotificationDetails> details;
1768     for (unsigned int i = 0; i < params.size(); ++i) {
1769       const AccessibilityHostMsg_EventParams& param = params[i];
1770       AXEventNotificationDetails detail(
1771           param.nodes, param.event_type, param.id, GetRoutingID());
1772       details.push_back(detail);
1773     }
1774
1775     delegate_->AccessibilityEventReceived(details);
1776   }
1777
1778   // Always send an ACK or the renderer can be in a bad state.
1779   Send(new AccessibilityMsg_Events_ACK(GetRoutingID()));
1780
1781   // The rest of this code is just for testing; bail out if we're not
1782   // in that mode.
1783   if (accessibility_testing_callback_.is_null())
1784     return;
1785
1786   for (unsigned i = 0; i < params.size(); i++) {
1787     const AccessibilityHostMsg_EventParams& param = params[i];
1788     if (static_cast<int>(param.event_type) < 0)
1789       continue;
1790     ui::AXTreeUpdate update;
1791     update.nodes = param.nodes;
1792     if (!ax_tree_)
1793       ax_tree_.reset(new ui::AXTree(update));
1794     else
1795       CHECK(ax_tree_->Unserialize(update)) << ax_tree_->error();
1796     accessibility_testing_callback_.Run(param.event_type);
1797   }
1798 }
1799
1800 void RenderViewHostImpl::OnAccessibilityLocationChanges(
1801     const std::vector<AccessibilityHostMsg_LocationChangeParams>& params) {
1802   if (view_ && IsRVHStateActive(rvh_state_)) {
1803     view_->CreateBrowserAccessibilityManagerIfNeeded();
1804     BrowserAccessibilityManager* manager =
1805         view_->GetBrowserAccessibilityManager();
1806     if (manager)
1807       manager->OnLocationChanges(params);
1808   }
1809 }
1810
1811 void RenderViewHostImpl::OnScriptEvalResponse(int id,
1812                                               const base::ListValue& result) {
1813   const base::Value* result_value;
1814   if (!result.Get(0, &result_value)) {
1815     // Programming error or rogue renderer.
1816     NOTREACHED() << "Got bad arguments for OnScriptEvalResponse";
1817     return;
1818   }
1819
1820   std::map<int, JavascriptResultCallback>::iterator it =
1821       javascript_callbacks_.find(id);
1822   if (it != javascript_callbacks_.end()) {
1823     // ExecuteJavascriptInWebFrameCallbackResult was used; do callback.
1824     it->second.Run(result_value);
1825     javascript_callbacks_.erase(it);
1826   } else {
1827     NOTREACHED() << "Received script response for unknown request";
1828   }
1829 }
1830
1831 void RenderViewHostImpl::OnDidZoomURL(double zoom_level,
1832                                       bool remember,
1833                                       const GURL& url) {
1834   HostZoomMapImpl* host_zoom_map = static_cast<HostZoomMapImpl*>(
1835       HostZoomMap::GetForBrowserContext(GetProcess()->GetBrowserContext()));
1836   if (remember) {
1837     host_zoom_map->
1838         SetZoomLevelForHost(net::GetHostOrSpecFromURL(url), zoom_level);
1839   } else {
1840     host_zoom_map->SetTemporaryZoomLevel(
1841         GetProcess()->GetID(), GetRoutingID(), zoom_level);
1842   }
1843 }
1844
1845 void RenderViewHostImpl::OnRequestDesktopNotificationPermission(
1846     const GURL& source_origin, int callback_context) {
1847   GetContentClient()->browser()->RequestDesktopNotificationPermission(
1848       source_origin, callback_context, GetProcess()->GetID(), GetRoutingID());
1849 }
1850
1851 void RenderViewHostImpl::OnShowDesktopNotification(
1852     const ShowDesktopNotificationHostMsgParams& params) {
1853   GetContentClient()->browser()->ShowDesktopNotification(
1854       params, GetProcess()->GetID(), GetRoutingID(), false);
1855 }
1856
1857 void RenderViewHostImpl::OnCancelDesktopNotification(int notification_id) {
1858   GetContentClient()->browser()->CancelDesktopNotification(
1859       GetProcess()->GetID(), GetRoutingID(), notification_id);
1860 }
1861
1862 void RenderViewHostImpl::OnRunFileChooser(const FileChooserParams& params) {
1863   delegate_->RunFileChooser(this, params);
1864 }
1865
1866 void RenderViewHostImpl::OnDidAccessInitialDocument() {
1867   has_accessed_initial_document_ = true;
1868   delegate_->DidAccessInitialDocument();
1869 }
1870
1871 void RenderViewHostImpl::OnFocusedNodeTouched(bool editable) {
1872 #if defined(OS_WIN)
1873   if (editable) {
1874     virtual_keyboard_requested_ = base::win::DisplayVirtualKeyboard();
1875   } else {
1876     virtual_keyboard_requested_ = false;
1877     base::win::DismissVirtualKeyboard();
1878   }
1879 #endif
1880 }
1881
1882 #if defined(OS_MACOSX) || defined(OS_ANDROID)
1883 void RenderViewHostImpl::OnShowPopup(
1884     const ViewHostMsg_ShowPopup_Params& params) {
1885   RenderViewHostDelegateView* view = delegate_->GetDelegateView();
1886   if (view) {
1887     view->ShowPopupMenu(params.bounds,
1888                         params.item_height,
1889                         params.item_font_size,
1890                         params.selected_item,
1891                         params.popup_items,
1892                         params.right_aligned,
1893                         params.allow_multiple_selection);
1894   }
1895 }
1896 #endif
1897
1898 void RenderViewHostImpl::SetState(RenderViewHostImplState rvh_state) {
1899   // We update the number of RenderViews in a SiteInstance when the
1900   // swapped out status of this RenderView gets flipped to/from live.
1901   if (!IsRVHStateActive(rvh_state_) && IsRVHStateActive(rvh_state))
1902     instance_->increment_active_view_count();
1903   else if (IsRVHStateActive(rvh_state_) && !IsRVHStateActive(rvh_state))
1904     instance_->decrement_active_view_count();
1905
1906   // Whenever we change the RVH state to and from live or swapped out state, we
1907   // should not be waiting for beforeunload or unload acks.  We clear them here
1908   // to be safe, since they can cause navigations to be ignored in OnNavigate.
1909   if (rvh_state == STATE_DEFAULT ||
1910       rvh_state == STATE_SWAPPED_OUT ||
1911       rvh_state_ == STATE_DEFAULT ||
1912       rvh_state_ == STATE_SWAPPED_OUT) {
1913     is_waiting_for_beforeunload_ack_ = false;
1914   }
1915   rvh_state_ = rvh_state;
1916
1917 }
1918
1919 bool RenderViewHostImpl::CanAccessFilesOfPageState(
1920     const PageState& state) const {
1921   ChildProcessSecurityPolicyImpl* policy =
1922       ChildProcessSecurityPolicyImpl::GetInstance();
1923
1924   const std::vector<base::FilePath>& file_paths = state.GetReferencedFiles();
1925   for (std::vector<base::FilePath>::const_iterator file = file_paths.begin();
1926        file != file_paths.end(); ++file) {
1927     if (!policy->CanReadFile(GetProcess()->GetID(), *file))
1928       return false;
1929   }
1930   return true;
1931 }
1932
1933 void RenderViewHostImpl::AttachToFrameTree() {
1934   FrameTree* frame_tree = delegate_->GetFrameTree();
1935
1936   frame_tree->ResetForMainFrameSwap();
1937 }
1938
1939 }  // namespace content