content/browser/web_contents/web_contents_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/web_contents/web_contents_impl.h"
   6
   7 #include <utility>
   8
   9 #include "base/command_line.h"
  10 #include "base/lazy_instance.h"
  11 #include "base/logging.h"
  12 #include "base/metrics/histogram.h"
  13 #include "base/process/process.h"
  14 #include "base/strings/string16.h"
  15 #include "base/strings/string_number_conversions.h"
  16 #include "base/strings/string_util.h"
  17 #include "base/strings/utf_string_conversions.h"
  18 #include "base/time/time.h"
  19 #include "base/trace_event/trace_event.h"
  20 #include "content/browser/accessibility/accessibility_mode_helper.h"
  21 #include "content/browser/accessibility/browser_accessibility_state_impl.h"
  22 #include "content/browser/browser_plugin/browser_plugin_embedder.h"
  23 #include "content/browser/browser_plugin/browser_plugin_guest.h"
  24 #include "content/browser/child_process_security_policy_impl.h"
  25 #include "content/browser/devtools/devtools_manager.h"
  26 #include "content/browser/dom_storage/dom_storage_context_wrapper.h"
  27 #include "content/browser/dom_storage/session_storage_namespace_impl.h"
  28 #include "content/browser/download/download_stats.h"
  29 #include "content/browser/download/mhtml_generation_manager.h"
  30 #include "content/browser/download/save_package.h"
  31 #include "content/browser/frame_host/cross_process_frame_connector.h"
  32 #include "content/browser/frame_host/interstitial_page_impl.h"
  33 #include "content/browser/frame_host/navigation_entry_impl.h"
  34 #include "content/browser/frame_host/navigator_impl.h"
  35 #include "content/browser/frame_host/render_frame_host_impl.h"
  36 #include "content/browser/frame_host/render_widget_host_view_child_frame.h"
  37 #include "content/browser/geolocation/geolocation_service_context.h"
  38 #include "content/browser/host_zoom_map_impl.h"
  39 #include "content/browser/loader/resource_dispatcher_host_impl.h"
  40 #include "content/browser/manifest/manifest_manager_host.h"
  41 #include "content/browser/media/audio_stream_monitor.h"
  42 #include "content/browser/media/capture/web_contents_audio_muter.h"
  43 #include "content/browser/message_port_message_filter.h"
  44 #include "content/browser/message_port_service.h"
  45 #include "content/browser/plugin_content_origin_whitelist.h"
  46 #include "content/browser/power_save_blocker_impl.h"
  47 #include "content/browser/renderer_host/render_process_host_impl.h"
  48 #include "content/browser/renderer_host/render_view_host_delegate_view.h"
  49 #include "content/browser/renderer_host/render_view_host_impl.h"
  50 #include "content/browser/renderer_host/render_widget_host_impl.h"
  51 #include "content/browser/renderer_host/render_widget_host_view_base.h"
  52 #include "content/browser/screen_orientation/screen_orientation_dispatcher_host_impl.h"
  53 #include "content/browser/site_instance_impl.h"
  54 #include "content/browser/web_contents/web_contents_view_guest.h"
  55 #include "content/browser/webui/generic_handler.h"
  56 #include "content/browser/webui/web_ui_controller_factory_registry.h"
  57 #include "content/browser/webui/web_ui_impl.h"
  58 #include "content/common/browser_plugin/browser_plugin_constants.h"
  59 #include "content/common/browser_plugin/browser_plugin_messages.h"
  60 #include "content/common/frame_messages.h"
  61 #include "content/common/image_messages.h"
  62 #include "content/common/input_messages.h"
  63 #include "content/common/ssl_status_serialization.h"
  64 #include "content/common/view_messages.h"
  65 #include "content/public/browser/ax_event_notification_details.h"
  66 #include "content/public/browser/browser_context.h"
  67 #include "content/public/browser/browser_plugin_guest_manager.h"
  68 #include "content/public/browser/content_browser_client.h"
  69 #include "content/public/browser/devtools_agent_host.h"
  70 #include "content/public/browser/download_manager.h"
  71 #include "content/public/browser/download_url_parameters.h"
  72 #include "content/public/browser/invalidate_type.h"
  73 #include "content/public/browser/javascript_dialog_manager.h"
  74 #include "content/public/browser/load_from_memory_cache_details.h"
  75 #include "content/public/browser/load_notification_details.h"
  76 #include "content/public/browser/navigation_details.h"
  77 #include "content/public/browser/notification_details.h"
  78 #include "content/public/browser/notification_service.h"
  79 #include "content/public/browser/render_widget_host_iterator.h"
  80 #include "content/public/browser/resource_request_details.h"
  81 #include "content/public/browser/screen_orientation_dispatcher_host.h"
  82 #include "content/public/browser/storage_partition.h"
  83 #include "content/public/browser/user_metrics.h"
  84 #include "content/public/browser/web_contents_delegate.h"
  85 #include "content/public/browser/web_contents_observer.h"
  86 #include "content/public/common/bindings_policy.h"
  87 #include "content/public/common/content_constants.h"
  88 #include "content/public/common/content_switches.h"
  89 #include "content/public/common/page_zoom.h"
  90 #include "content/public/common/result_codes.h"
  91 #include "content/public/common/url_constants.h"
  92 #include "content/public/common/url_utils.h"
  93 #include "content/public/common/web_preferences.h"
  94 #include "net/base/mime_util.h"
  95 #include "net/base/net_util.h"
  96 #include "net/http/http_cache.h"
  97 #include "net/http/http_transaction_factory.h"
  98 #include "net/url_request/url_request_context.h"
  99 #include "net/url_request/url_request_context_getter.h"
 100 #include "ui/base/layout.h"
 101 #include "ui/gfx/display.h"
 102 #include "ui/gfx/screen.h"
 103 #include "ui/gl/gl_switches.h"
 104
 105 #if defined(ENABLE_BROWSER_CDMS)
 106 #include "content/browser/media/media_web_contents_observer.h"
 107 #endif
 108
 109 #if defined(OS_ANDROID)
 110 #include "content/browser/android/content_video_view.h"
 111 #include "content/browser/android/date_time_chooser_android.h"
 112 #include "content/browser/media/android/browser_media_player_manager.h"
 113 #include "content/browser/web_contents/web_contents_android.h"
 114 #endif
 115
 116 #if defined(OS_MACOSX)
 117 #include "base/mac/foundation_util.h"
 118 #endif
 119
 120 namespace content {
 121 namespace {
 122
 123 const int kMinimumDelayBetweenLoadingUpdatesMS = 100;
 124
 125 // This matches what Blink's ProgressTracker has traditionally used for a
 126 // minimum progress value.
 127 const double kMinimumLoadingProgress = 0.1;
 128
 129 const char kDotGoogleDotCom[] = ".google.com";
 130
 131 #if defined(OS_ANDROID)
 132 const char kWebContentsAndroidKey[] = "web_contents_android";
 133 #endif  // OS_ANDROID
 134
 135 base::LazyInstance<std::vector<WebContentsImpl::CreatedCallback> >
 136 g_created_callbacks = LAZY_INSTANCE_INITIALIZER;
 137
 138 static int StartDownload(RenderFrameHost* rfh,
 139                          const GURL& url,
 140                          bool is_favicon,
 141                          uint32_t max_bitmap_size) {
 142   static int g_next_image_download_id = 0;
 143   rfh->Send(new ImageMsg_DownloadImage(rfh->GetRoutingID(),
 144                                        ++g_next_image_download_id,
 145                                        url,
 146                                        is_favicon,
 147                                        max_bitmap_size));
 148   return g_next_image_download_id;
 149 }
 150
 151 void NotifyCacheOnIO(
 152     scoped_refptr<net::URLRequestContextGetter> request_context,
 153     const GURL& url,
 154     const std::string& http_method) {
 155   request_context->GetURLRequestContext()->http_transaction_factory()->
 156       GetCache()->OnExternalCacheHit(url, http_method);
 157 }
 158
 159 // Helper function for retrieving all the sites in a frame tree.
 160 bool CollectSites(BrowserContext* context,
 161                   std::set<GURL>* sites,
 162                   FrameTreeNode* node) {
 163   sites->insert(SiteInstance::GetSiteForURL(context, node->current_url()));
 164   return true;
 165 }
 166
 167 bool ForEachFrameInternal(
 168     const base::Callback<void(RenderFrameHost*)>& on_frame,
 169     FrameTreeNode* node) {
 170   on_frame.Run(node->current_frame_host());
 171   return true;
 172 }
 173
 174 bool ForEachPendingFrameInternal(
 175     const base::Callback<void(RenderFrameHost*)>& on_frame,
 176     FrameTreeNode* node) {
 177   RenderFrameHost* pending_frame_host =
 178       node->render_manager()->pending_frame_host();
 179   if (pending_frame_host)
 180     on_frame.Run(pending_frame_host);
 181   return true;
 182 }
 183
 184 void SendToAllFramesInternal(IPC::Message* message, RenderFrameHost* rfh) {
 185   IPC::Message* message_copy = new IPC::Message(*message);
 186   message_copy->set_routing_id(rfh->GetRoutingID());
 187   rfh->Send(message_copy);
 188 }
 189
 190 void AddRenderWidgetHostViewToSet(std::set<RenderWidgetHostView*>* set,
 191                                   RenderFrameHost* rfh) {
 192   RenderWidgetHostView* rwhv = static_cast<RenderFrameHostImpl*>(rfh)
 193                                    ->frame_tree_node()
 194                                    ->render_manager()
 195                                    ->GetRenderWidgetHostView();
 196   set->insert(rwhv);
 197 }
 198
 199 void SetAccessibilityModeOnFrame(AccessibilityMode mode,
 200                                  RenderFrameHost* frame_host) {
 201   static_cast<RenderFrameHostImpl*>(frame_host)->SetAccessibilityMode(mode);
 202 }
 203
 204 // Enable sudden termination for the current RenderFrameHost of
 205 // |frame_tree_node| if the ID of its SiteInstance is |site_instance_id|.  Used
 206 // with FrameTree::ForEach.
 207 bool EnableSuddenTermination(int32 site_instance_id,
 208                              FrameTreeNode* frame_tree_node) {
 209   if (frame_tree_node->current_frame_host()->GetSiteInstance()->GetId()
 210       == site_instance_id) {
 211     frame_tree_node->current_frame_host()
 212         ->set_override_sudden_termination_status(true);
 213   }
 214   return true;
 215 }
 216
 217 // Returns false and sets |sudden_termination_allowed| to false if sudden
 218 // termination is not allowed for the current RenderFrameHost of
 219 // |frame_tree_node|. Used with FrameTree::ForEach.
 220 bool SuddenTerminationAllowed(bool* sudden_termination_allowed,
 221                               FrameTreeNode* frame_tree_node) {
 222   if (frame_tree_node->current_frame_host()->SuddenTerminationAllowed())
 223     return true;
 224   *sudden_termination_allowed = false;
 225   return false;
 226 }
 227
 228 }  // namespace
 229
 230 WebContents* WebContents::Create(const WebContents::CreateParams& params) {
 231   return WebContentsImpl::CreateWithOpener(
 232       params, static_cast<WebContentsImpl*>(params.opener));
 233 }
 234
 235 WebContents* WebContents::CreateWithSessionStorage(
 236     const WebContents::CreateParams& params,
 237     const SessionStorageNamespaceMap& session_storage_namespace_map) {
 238   WebContentsImpl* new_contents = new WebContentsImpl(
 239       params.browser_context, NULL);
 240
 241   for (SessionStorageNamespaceMap::const_iterator it =
 242            session_storage_namespace_map.begin();
 243        it != session_storage_namespace_map.end();
 244        ++it) {
 245     new_contents->GetController()
 246         .SetSessionStorageNamespace(it->first, it->second.get());
 247   }
 248
 249   new_contents->Init(params);
 250   return new_contents;
 251 }
 252
 253 void WebContentsImpl::FriendZone::AddCreatedCallbackForTesting(
 254     const CreatedCallback& callback) {
 255   g_created_callbacks.Get().push_back(callback);
 256 }
 257
 258 void WebContentsImpl::FriendZone::RemoveCreatedCallbackForTesting(
 259     const CreatedCallback& callback) {
 260   for (size_t i = 0; i < g_created_callbacks.Get().size(); ++i) {
 261     if (g_created_callbacks.Get().at(i).Equals(callback)) {
 262       g_created_callbacks.Get().erase(g_created_callbacks.Get().begin() + i);
 263       return;
 264     }
 265   }
 266 }
 267
 268 WebContents* WebContents::FromRenderViewHost(const RenderViewHost* rvh) {
 269   return rvh->GetDelegate()->GetAsWebContents();
 270 }
 271
 272 WebContents* WebContents::FromRenderFrameHost(RenderFrameHost* rfh) {
 273   RenderFrameHostImpl* rfh_impl = static_cast<RenderFrameHostImpl*>(rfh);
 274   if (!rfh_impl)
 275     return NULL;
 276   return rfh_impl->delegate()->GetAsWebContents();
 277 }
 278
 279 // WebContentsImpl::DestructionObserver ----------------------------------------
 280
 281 class WebContentsImpl::DestructionObserver : public WebContentsObserver {
 282  public:
 283   DestructionObserver(WebContentsImpl* owner, WebContents* watched_contents)
 284       : WebContentsObserver(watched_contents),
 285         owner_(owner) {
 286   }
 287
 288   // WebContentsObserver:
 289   void WebContentsDestroyed() override {
 290     owner_->OnWebContentsDestroyed(
 291         static_cast<WebContentsImpl*>(web_contents()));
 292   }
 293
 294  private:
 295   WebContentsImpl* owner_;
 296
 297   DISALLOW_COPY_AND_ASSIGN(DestructionObserver);
 298 };
 299
 300 WebContentsImpl::ColorChooserInfo::ColorChooserInfo(int render_process_id,
 301                                                     int render_frame_id,
 302                                                     ColorChooser* chooser,
 303                                                     int identifier)
 304     : render_process_id(render_process_id),
 305       render_frame_id(render_frame_id),
 306       chooser(chooser),
 307       identifier(identifier) {
 308 }
 309
 310 WebContentsImpl::ColorChooserInfo::~ColorChooserInfo() {
 311 }
 312
 313 // WebContentsImpl -------------------------------------------------------------
 314
 315 WebContentsImpl::WebContentsImpl(BrowserContext* browser_context,
 316                                  WebContentsImpl* opener)
 317     : delegate_(NULL),
 318       controller_(this, browser_context),
 319       render_view_host_delegate_view_(NULL),
 320       opener_(opener),
 321       created_with_opener_(!!opener),
 322 #if defined(OS_WIN)
 323       accessible_parent_(NULL),
 324 #endif
 325       frame_tree_(new NavigatorImpl(&controller_, this),
 326                   this,
 327                   this,
 328                   this,
 329                   this),
 330       is_loading_(false),
 331       is_load_to_different_document_(false),
 332       crashed_status_(base::TERMINATION_STATUS_STILL_RUNNING),
 333       crashed_error_code_(0),
 334       waiting_for_response_(false),
 335       load_state_(net::LOAD_STATE_IDLE, base::string16()),
 336       loading_total_progress_(0.0),
 337       loading_frames_in_progress_(0),
 338       upload_size_(0),
 339       upload_position_(0),
 340       displayed_insecure_content_(false),
 341       has_accessed_initial_document_(false),
 342       capturer_count_(0),
 343       should_normally_be_visible_(true),
 344       is_being_destroyed_(false),
 345       notify_disconnection_(false),
 346       dialog_manager_(NULL),
 347       is_showing_before_unload_dialog_(false),
 348       last_active_time_(base::TimeTicks::Now()),
 349       closed_by_user_gesture_(false),
 350       minimum_zoom_percent_(static_cast<int>(kMinimumZoomFactor * 100)),
 351       maximum_zoom_percent_(static_cast<int>(kMaximumZoomFactor * 100)),
 352       render_view_message_source_(NULL),
 353       render_frame_message_source_(NULL),
 354       fullscreen_widget_routing_id_(MSG_ROUTING_NONE),
 355       fullscreen_widget_had_focus_at_shutdown_(false),
 356       is_subframe_(false),
 357       force_disable_overscroll_content_(false),
 358       last_dialog_suppressed_(false),
 359       geolocation_service_context_(new GeolocationServiceContext()),
 360       accessibility_mode_(
 361           BrowserAccessibilityStateImpl::GetInstance()->accessibility_mode()),
 362       audio_stream_monitor_(this),
 363       virtual_keyboard_requested_(false),
 364       loading_weak_factory_(this) {
 365   frame_tree_.SetFrameRemoveListener(
 366       base::Bind(&WebContentsImpl::OnFrameRemoved,
 367                  base::Unretained(this)));
 368 #if defined(ENABLE_BROWSER_CDMS)
 369   media_web_contents_observer_.reset(new MediaWebContentsObserver(this));
 370 #endif
 371 }
 372
 373 WebContentsImpl::~WebContentsImpl() {
 374   is_being_destroyed_ = true;
 375
 376   // Delete all RFH pending shutdown, which will lead the corresponding RVH to
 377   // shutdown and be deleted as well.
 378   frame_tree_.ForEach(
 379       base::Bind(&RenderFrameHostManager::ClearRFHsPendingShutdown));
 380
 381   ClearAllPowerSaveBlockers();
 382
 383   for (std::set<RenderWidgetHostImpl*>::iterator iter =
 384            created_widgets_.begin(); iter != created_widgets_.end(); ++iter) {
 385     (*iter)->DetachDelegate();
 386   }
 387   created_widgets_.clear();
 388
 389   // Clear out any JavaScript state.
 390   if (dialog_manager_)
 391     dialog_manager_->WebContentsDestroyed(this);
 392
 393   if (color_chooser_info_.get())
 394     color_chooser_info_->chooser->End();
 395
 396   NotifyDisconnected();
 397
 398   // Notify any observer that have a reference on this WebContents.
 399   NotificationService::current()->Notify(
 400       NOTIFICATION_WEB_CONTENTS_DESTROYED,
 401       Source<WebContents>(this),
 402       NotificationService::NoDetails());
 403
 404   // Destroy all frame tree nodes except for the root; this notifies observers.
 405   frame_tree_.ResetForMainFrameSwap();
 406   GetRenderManager()->ResetProxyHosts();
 407
 408   // Manually call the observer methods for the root frame tree node.
 409   RenderFrameHostManager* root = GetRenderManager();
 410   if (root->pending_frame_host()) {
 411     FOR_EACH_OBSERVER(WebContentsObserver,
 412                       observers_,
 413                       RenderFrameDeleted(root->pending_frame_host()));
 414   }
 415   FOR_EACH_OBSERVER(WebContentsObserver,
 416                     observers_,
 417                     RenderFrameDeleted(root->current_frame_host()));
 418
 419   if (root->pending_render_view_host()) {
 420     FOR_EACH_OBSERVER(WebContentsObserver,
 421                       observers_,
 422                       RenderViewDeleted(root->pending_render_view_host()));
 423   }
 424
 425   FOR_EACH_OBSERVER(WebContentsObserver,
 426                     observers_,
 427                     RenderViewDeleted(root->current_host()));
 428
 429   FOR_EACH_OBSERVER(WebContentsObserver,
 430                     observers_,
 431                     WebContentsDestroyed());
 432
 433   FOR_EACH_OBSERVER(WebContentsObserver,
 434                     observers_,
 435                     ResetWebContents());
 436
 437   SetDelegate(NULL);
 438
 439   STLDeleteContainerPairSecondPointers(destruction_observers_.begin(),
 440                                        destruction_observers_.end());
 441 }
 442
 443 WebContentsImpl* WebContentsImpl::CreateWithOpener(
 444     const WebContents::CreateParams& params,
 445     WebContentsImpl* opener) {
 446   TRACE_EVENT0("browser", "WebContentsImpl::CreateWithOpener");
 447   WebContentsImpl* new_contents = new WebContentsImpl(
 448       params.browser_context, params.opener_suppressed ? NULL : opener);
 449
 450   if (params.guest_delegate) {
 451     // This makes |new_contents| act as a guest.
 452     // For more info, see comment above class BrowserPluginGuest.
 453     BrowserPluginGuest::Create(new_contents, params.guest_delegate);
 454     // We are instantiating a WebContents for browser plugin. Set its subframe
 455     // bit to true.
 456     new_contents->is_subframe_ = true;
 457   }
 458   new_contents->Init(params);
 459   return new_contents;
 460 }
 461
 462 // static
 463 std::vector<WebContentsImpl*> WebContentsImpl::GetAllWebContents() {
 464   std::vector<WebContentsImpl*> result;
 465   scoped_ptr<RenderWidgetHostIterator> widgets(
 466       RenderWidgetHostImpl::GetRenderWidgetHosts());
 467   std::set<WebContentsImpl*> web_contents_set;
 468   while (RenderWidgetHost* rwh = widgets->GetNextHost()) {
 469     if (!rwh->IsRenderView())
 470       continue;
 471     RenderViewHost* rvh = RenderViewHost::From(rwh);
 472     if (!rvh)
 473       continue;
 474     WebContents* web_contents = WebContents::FromRenderViewHost(rvh);
 475     if (!web_contents)
 476       continue;
 477     WebContentsImpl* wci = static_cast<WebContentsImpl*>(web_contents);
 478     if (web_contents_set.find(wci) == web_contents_set.end()) {
 479       web_contents_set.insert(wci);
 480       result.push_back(wci);
 481     }
 482   }
 483   return result;
 484 }
 485
 486 RenderFrameHostManager* WebContentsImpl::GetRenderManagerForTesting() {
 487   return GetRenderManager();
 488 }
 489
 490 bool WebContentsImpl::OnMessageReceived(RenderViewHost* render_view_host,
 491                                         const IPC::Message& message) {
 492   return OnMessageReceived(render_view_host, NULL, message);
 493 }
 494
 495 bool WebContentsImpl::OnMessageReceived(RenderViewHost* render_view_host,
 496                                         RenderFrameHost* render_frame_host,
 497                                         const IPC::Message& message) {
 498   DCHECK(render_view_host || render_frame_host);
 499   if (GetWebUI() &&
 500       static_cast<WebUIImpl*>(GetWebUI())->OnMessageReceived(message)) {
 501     return true;
 502   }
 503
 504   ObserverListBase<WebContentsObserver>::Iterator it(observers_);
 505   WebContentsObserver* observer;
 506   if (render_frame_host) {
 507     while ((observer = it.GetNext()) != NULL)
 508       if (observer->OnMessageReceived(message, render_frame_host))
 509         return true;
 510   } else {
 511     while ((observer = it.GetNext()) != NULL)
 512       if (observer->OnMessageReceived(message))
 513         return true;
 514   }
 515
 516   // Message handlers should be aware of which
 517   // RenderViewHost/RenderFrameHost sent the message, which is temporarily
 518   // stored in render_(view|frame)_message_source_.
 519   if (render_frame_host)
 520     render_frame_message_source_ = render_frame_host;
 521   else
 522     render_view_message_source_ = render_view_host;
 523
 524   bool handled = true;
 525   IPC_BEGIN_MESSAGE_MAP(WebContentsImpl, message)
 526     IPC_MESSAGE_HANDLER(FrameHostMsg_DomOperationResponse,
 527                         OnDomOperationResponse)
 528     IPC_MESSAGE_HANDLER(FrameHostMsg_DidChangeThemeColor,
 529                         OnThemeColorChanged)
 530     IPC_MESSAGE_HANDLER(FrameHostMsg_DidFinishDocumentLoad,
 531                         OnDocumentLoadedInFrame)
 532     IPC_MESSAGE_HANDLER(FrameHostMsg_DidFinishLoad, OnDidFinishLoad)
 533     IPC_MESSAGE_HANDLER(FrameHostMsg_DidStartLoading, OnDidStartLoading)
 534     IPC_MESSAGE_HANDLER(FrameHostMsg_DidStopLoading, OnDidStopLoading)
 535     IPC_MESSAGE_HANDLER(FrameHostMsg_DidChangeLoadProgress,
 536                         OnDidChangeLoadProgress)
 537     IPC_MESSAGE_HANDLER(FrameHostMsg_OpenColorChooser, OnOpenColorChooser)
 538     IPC_MESSAGE_HANDLER(FrameHostMsg_EndColorChooser, OnEndColorChooser)
 539     IPC_MESSAGE_HANDLER(FrameHostMsg_SetSelectedColorInColorChooser,
 540                         OnSetSelectedColorInColorChooser)
 541     IPC_MESSAGE_HANDLER(FrameHostMsg_MediaPlayingNotification,
 542                         OnMediaPlayingNotification)
 543     IPC_MESSAGE_HANDLER(FrameHostMsg_MediaPausedNotification,
 544                         OnMediaPausedNotification)
 545     IPC_MESSAGE_HANDLER(FrameHostMsg_DidFirstVisuallyNonEmptyPaint,
 546                         OnFirstVisuallyNonEmptyPaint)
 547     IPC_MESSAGE_HANDLER(ViewHostMsg_DidLoadResourceFromMemoryCache,
 548                         OnDidLoadResourceFromMemoryCache)
 549     IPC_MESSAGE_HANDLER(ViewHostMsg_DidDisplayInsecureContent,
 550                         OnDidDisplayInsecureContent)
 551     IPC_MESSAGE_HANDLER(ViewHostMsg_DidRunInsecureContent,
 552                         OnDidRunInsecureContent)
 553     IPC_MESSAGE_HANDLER(ViewHostMsg_GoToEntryAtOffset, OnGoToEntryAtOffset)
 554     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateZoomLimits, OnUpdateZoomLimits)
 555     IPC_MESSAGE_HANDLER(ViewHostMsg_EnumerateDirectory, OnEnumerateDirectory)
 556     IPC_MESSAGE_HANDLER(ViewHostMsg_RegisterProtocolHandler,
 557                         OnRegisterProtocolHandler)
 558     IPC_MESSAGE_HANDLER(ViewHostMsg_UnregisterProtocolHandler,
 559                         OnUnregisterProtocolHandler)
 560     IPC_MESSAGE_HANDLER(ViewHostMsg_Find_Reply, OnFindReply)
 561     IPC_MESSAGE_HANDLER(ViewHostMsg_AppCacheAccessed, OnAppCacheAccessed)
 562     IPC_MESSAGE_HANDLER(ViewHostMsg_WebUISend, OnWebUISend)
 563 #if defined(ENABLE_PLUGINS)
 564     IPC_MESSAGE_HANDLER(FrameHostMsg_PepperPluginHung, OnPepperPluginHung)
 565     IPC_MESSAGE_HANDLER(FrameHostMsg_PluginCrashed, OnPluginCrashed)
 566     IPC_MESSAGE_HANDLER(ViewHostMsg_RequestPpapiBrokerPermission,
 567                         OnRequestPpapiBrokerPermission)
 568     IPC_MESSAGE_HANDLER_GENERIC(BrowserPluginHostMsg_Attach,
 569                                 OnBrowserPluginMessage(message))
 570 #endif
 571     IPC_MESSAGE_HANDLER(ImageHostMsg_DidDownloadImage, OnDidDownloadImage)
 572     IPC_MESSAGE_HANDLER(ViewHostMsg_UpdateFaviconURL, OnUpdateFaviconURL)
 573     IPC_MESSAGE_HANDLER(ViewHostMsg_ShowValidationMessage,
 574                         OnShowValidationMessage)
 575     IPC_MESSAGE_HANDLER(ViewHostMsg_HideValidationMessage,
 576                         OnHideValidationMessage)
 577     IPC_MESSAGE_HANDLER(ViewHostMsg_MoveValidationMessage,
 578                         OnMoveValidationMessage)
 579 #if defined(OS_ANDROID)
 580     IPC_MESSAGE_HANDLER(ViewHostMsg_FindMatchRects_Reply,
 581                         OnFindMatchRectsReply)
 582     IPC_MESSAGE_HANDLER(ViewHostMsg_OpenDateTimeDialog,
 583                         OnOpenDateTimeDialog)
 584 #endif
 585     IPC_MESSAGE_UNHANDLED(handled = false)
 586   IPC_END_MESSAGE_MAP()
 587   render_view_message_source_ = NULL;
 588   render_frame_message_source_ = NULL;
 589
 590   return handled;
 591 }
 592
 593 bool WebContentsImpl::HasValidFrameSource() {
 594   if (!render_frame_message_source_) {
 595     DCHECK(render_view_message_source_);
 596     RecordAction(base::UserMetricsAction("BadMessageTerminate_WC"));
 597     GetRenderProcessHost()->ReceivedBadMessage();
 598     return false;
 599   }
 600
 601   return true;
 602 }
 603
 604 void WebContentsImpl::RunFileChooser(
 605     RenderViewHost* render_view_host,
 606     const FileChooserParams& params) {
 607   if (delegate_)
 608     delegate_->RunFileChooser(this, params);
 609 }
 610
 611 NavigationControllerImpl& WebContentsImpl::GetController() {
 612   return controller_;
 613 }
 614
 615 const NavigationControllerImpl& WebContentsImpl::GetController() const {
 616   return controller_;
 617 }
 618
 619 BrowserContext* WebContentsImpl::GetBrowserContext() const {
 620   return controller_.GetBrowserContext();
 621 }
 622
 623 const GURL& WebContentsImpl::GetURL() const {
 624   // We may not have a navigation entry yet.
 625   NavigationEntry* entry = controller_.GetVisibleEntry();
 626   return entry ? entry->GetVirtualURL() : GURL::EmptyGURL();
 627 }
 628
 629 const GURL& WebContentsImpl::GetVisibleURL() const {
 630   // We may not have a navigation entry yet.
 631   NavigationEntry* entry = controller_.GetVisibleEntry();
 632   return entry ? entry->GetVirtualURL() : GURL::EmptyGURL();
 633 }
 634
 635 const GURL& WebContentsImpl::GetLastCommittedURL() const {
 636   // We may not have a navigation entry yet.
 637   NavigationEntry* entry = controller_.GetLastCommittedEntry();
 638   return entry ? entry->GetVirtualURL() : GURL::EmptyGURL();
 639 }
 640
 641 WebContentsDelegate* WebContentsImpl::GetDelegate() {
 642   return delegate_;
 643 }
 644
 645 void WebContentsImpl::SetDelegate(WebContentsDelegate* delegate) {
 646   // TODO(cbentzel): remove this debugging code?
 647   if (delegate == delegate_)
 648     return;
 649   if (delegate_)
 650     delegate_->Detach(this);
 651   delegate_ = delegate;
 652   if (delegate_) {
 653     delegate_->Attach(this);
 654     // Ensure the visible RVH reflects the new delegate's preferences.
 655     if (view_)
 656       view_->SetOverscrollControllerEnabled(CanOverscrollContent());
 657   }
 658 }
 659
 660 RenderProcessHost* WebContentsImpl::GetRenderProcessHost() const {
 661   RenderViewHostImpl* host = GetRenderManager()->current_host();
 662   return host ? host->GetProcess() : NULL;
 663 }
 664
 665 RenderFrameHostImpl* WebContentsImpl::GetMainFrame() {
 666   return frame_tree_.root()->current_frame_host();
 667 }
 668
 669 RenderFrameHost* WebContentsImpl::GetFocusedFrame() {
 670   if (!frame_tree_.GetFocusedFrame())
 671     return NULL;
 672   return frame_tree_.GetFocusedFrame()->current_frame_host();
 673 }
 674
 675 void WebContentsImpl::ForEachFrame(
 676     const base::Callback<void(RenderFrameHost*)>& on_frame) {
 677   frame_tree_.ForEach(base::Bind(&ForEachFrameInternal, on_frame));
 678 }
 679
 680 void WebContentsImpl::SendToAllFrames(IPC::Message* message) {
 681   ForEachFrame(base::Bind(&SendToAllFramesInternal, message));
 682   delete message;
 683 }
 684
 685 RenderViewHost* WebContentsImpl::GetRenderViewHost() const {
 686   return GetRenderManager()->current_host();
 687 }
 688
 689 int WebContentsImpl::GetRoutingID() const {
 690   if (!GetRenderViewHost())
 691     return MSG_ROUTING_NONE;
 692
 693   return GetRenderViewHost()->GetRoutingID();
 694 }
 695
 696 int WebContentsImpl::GetFullscreenWidgetRoutingID() const {
 697   return fullscreen_widget_routing_id_;
 698 }
 699
 700 RenderWidgetHostView* WebContentsImpl::GetRenderWidgetHostView() const {
 701   return GetRenderManager()->GetRenderWidgetHostView();
 702 }
 703
 704 RenderWidgetHostView* WebContentsImpl::GetFullscreenRenderWidgetHostView()
 705     const {
 706   RenderWidgetHost* const widget_host =
 707       RenderWidgetHostImpl::FromID(GetRenderProcessHost()->GetID(),
 708                                    GetFullscreenWidgetRoutingID());
 709   return widget_host ? widget_host->GetView() : NULL;
 710 }
 711
 712 WebContentsView* WebContentsImpl::GetView() const {
 713   return view_.get();
 714 }
 715
 716 void WebContentsImpl::SetAccessibilityMode(AccessibilityMode mode) {
 717   if (mode == accessibility_mode_)
 718     return;
 719
 720   accessibility_mode_ = mode;
 721   frame_tree_.ForEach(
 722       base::Bind(&ForEachFrameInternal,
 723                  base::Bind(&SetAccessibilityModeOnFrame, mode)));
 724   frame_tree_.ForEach(
 725       base::Bind(&ForEachPendingFrameInternal,
 726                  base::Bind(&SetAccessibilityModeOnFrame, mode)));
 727 }
 728
 729 void WebContentsImpl::AddAccessibilityMode(AccessibilityMode mode) {
 730   SetAccessibilityMode(AddAccessibilityModeTo(accessibility_mode_, mode));
 731 }
 732
 733 void WebContentsImpl::RemoveAccessibilityMode(AccessibilityMode mode) {
 734   SetAccessibilityMode(RemoveAccessibilityModeFrom(accessibility_mode_, mode));
 735 }
 736
 737 void WebContentsImpl::ClearNavigationTransitionData() {
 738   FrameTreeNode* node = frame_tree_.root();
 739   node->render_manager()->ClearNavigationTransitionData();
 740 }
 741
 742 WebUI* WebContentsImpl::CreateWebUI(const GURL& url) {
 743   WebUIImpl* web_ui = new WebUIImpl(this);
 744   WebUIController* controller = WebUIControllerFactoryRegistry::GetInstance()->
 745       CreateWebUIControllerForURL(web_ui, url);
 746   if (controller) {
 747     web_ui->AddMessageHandler(new GenericHandler());
 748     web_ui->SetController(controller);
 749     return web_ui;
 750   }
 751
 752   delete web_ui;
 753   return NULL;
 754 }
 755
 756 WebUI* WebContentsImpl::GetWebUI() const {
 757   return GetRenderManager()->web_ui() ? GetRenderManager()->web_ui()
 758       : GetRenderManager()->pending_web_ui();
 759 }
 760
 761 WebUI* WebContentsImpl::GetCommittedWebUI() const {
 762   return GetRenderManager()->web_ui();
 763 }
 764
 765 void WebContentsImpl::SetUserAgentOverride(const std::string& override) {
 766   if (GetUserAgentOverride() == override)
 767     return;
 768
 769   renderer_preferences_.user_agent_override = override;
 770
 771   // Send the new override string to the renderer.
 772   RenderViewHost* host = GetRenderViewHost();
 773   if (host)
 774     host->SyncRendererPrefs();
 775
 776   // Reload the page if a load is currently in progress to avoid having
 777   // different parts of the page loaded using different user agents.
 778   NavigationEntry* entry = controller_.GetVisibleEntry();
 779   if (is_loading_ && entry != NULL && entry->GetIsOverridingUserAgent())
 780     controller_.ReloadIgnoringCache(true);
 781
 782   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
 783                     UserAgentOverrideSet(override));
 784 }
 785
 786 const std::string& WebContentsImpl::GetUserAgentOverride() const {
 787   return renderer_preferences_.user_agent_override;
 788 }
 789
 790 void WebContentsImpl::EnableTreeOnlyAccessibilityMode() {
 791   AddAccessibilityMode(AccessibilityModeTreeOnly);
 792 }
 793
 794 bool WebContentsImpl::IsTreeOnlyAccessibilityModeForTesting() const {
 795   return accessibility_mode_ == AccessibilityModeTreeOnly;
 796 }
 797
 798 bool WebContentsImpl::IsFullAccessibilityModeForTesting() const {
 799   return accessibility_mode_ == AccessibilityModeComplete;
 800 }
 801
 802 #if defined(OS_WIN)
 803 void WebContentsImpl::SetParentNativeViewAccessible(
 804 gfx::NativeViewAccessible accessible_parent) {
 805   accessible_parent_ = accessible_parent;
 806   RenderFrameHostImpl* rfh = GetMainFrame();
 807   if (rfh)
 808     rfh->SetParentNativeViewAccessible(accessible_parent);
 809 }
 810 #endif
 811
 812 const base::string16& WebContentsImpl::GetTitle() const {
 813   // Transient entries take precedence. They are used for interstitial pages
 814   // that are shown on top of existing pages.
 815   NavigationEntry* entry = controller_.GetTransientEntry();
 816   std::string accept_languages =
 817       GetContentClient()->browser()->GetAcceptLangs(
 818           GetBrowserContext());
 819   if (entry) {
 820     return entry->GetTitleForDisplay(accept_languages);
 821   }
 822   WebUI* our_web_ui = GetRenderManager()->pending_web_ui() ?
 823       GetRenderManager()->pending_web_ui() : GetRenderManager()->web_ui();
 824   if (our_web_ui) {
 825     // Don't override the title in view source mode.
 826     entry = controller_.GetVisibleEntry();
 827     if (!(entry && entry->IsViewSourceMode())) {
 828       // Give the Web UI the chance to override our title.
 829       const base::string16& title = our_web_ui->GetOverriddenTitle();
 830       if (!title.empty())
 831         return title;
 832     }
 833   }
 834
 835   // We use the title for the last committed entry rather than a pending
 836   // navigation entry. For example, when the user types in a URL, we want to
 837   // keep the old page's title until the new load has committed and we get a new
 838   // title.
 839   entry = controller_.GetLastCommittedEntry();
 840
 841   // We make an exception for initial navigations.
 842   if (controller_.IsInitialNavigation()) {
 843     // We only want to use the title from the visible entry in one of two cases:
 844     // 1. There's already a committed entry for an initial navigation, in which
 845     //    case we are doing a history navigation in a new tab (e.g., Ctrl+Back).
 846     // 2. The pending entry has been explicitly assigned a title to display.
 847     //
 848     // If there's no last committed entry and no assigned title, we should fall
 849     // back to |page_title_when_no_navigation_entry_| rather than showing the
 850     // URL.
 851     if (entry ||
 852         (controller_.GetVisibleEntry() &&
 853          !controller_.GetVisibleEntry()->GetTitle().empty())) {
 854       entry = controller_.GetVisibleEntry();
 855     }
 856   }
 857
 858   if (entry) {
 859     return entry->GetTitleForDisplay(accept_languages);
 860   }
 861
 862   // |page_title_when_no_navigation_entry_| is finally used
 863   // if no title cannot be retrieved.
 864   return page_title_when_no_navigation_entry_;
 865 }
 866
 867 int32 WebContentsImpl::GetMaxPageID() {
 868   return GetMaxPageIDForSiteInstance(GetSiteInstance());
 869 }
 870
 871 int32 WebContentsImpl::GetMaxPageIDForSiteInstance(
 872     SiteInstance* site_instance) {
 873   if (max_page_ids_.find(site_instance->GetId()) == max_page_ids_.end())
 874     max_page_ids_[site_instance->GetId()] = -1;
 875
 876   return max_page_ids_[site_instance->GetId()];
 877 }
 878
 879 void WebContentsImpl::UpdateMaxPageID(int32 page_id) {
 880   UpdateMaxPageIDForSiteInstance(GetSiteInstance(), page_id);
 881 }
 882
 883 void WebContentsImpl::UpdateMaxPageIDForSiteInstance(
 884     SiteInstance* site_instance, int32 page_id) {
 885   if (GetMaxPageIDForSiteInstance(site_instance) < page_id)
 886     max_page_ids_[site_instance->GetId()] = page_id;
 887 }
 888
 889 void WebContentsImpl::CopyMaxPageIDsFrom(WebContents* web_contents) {
 890   WebContentsImpl* contents = static_cast<WebContentsImpl*>(web_contents);
 891   max_page_ids_ = contents->max_page_ids_;
 892 }
 893
 894 SiteInstanceImpl* WebContentsImpl::GetSiteInstance() const {
 895   return GetRenderManager()->current_host()->GetSiteInstance();
 896 }
 897
 898 SiteInstanceImpl* WebContentsImpl::GetPendingSiteInstance() const {
 899   RenderViewHostImpl* dest_rvh =
 900       GetRenderManager()->pending_render_view_host() ?
 901           GetRenderManager()->pending_render_view_host() :
 902           GetRenderManager()->current_host();
 903   return dest_rvh->GetSiteInstance();
 904 }
 905
 906 bool WebContentsImpl::IsLoading() const {
 907   return is_loading_;
 908 }
 909
 910 bool WebContentsImpl::IsLoadingToDifferentDocument() const {
 911   return is_loading_ && is_load_to_different_document_;
 912 }
 913
 914 bool WebContentsImpl::IsWaitingForResponse() const {
 915   return waiting_for_response_ && is_load_to_different_document_;
 916 }
 917
 918 const net::LoadStateWithParam& WebContentsImpl::GetLoadState() const {
 919   return load_state_;
 920 }
 921
 922 const base::string16& WebContentsImpl::GetLoadStateHost() const {
 923   return load_state_host_;
 924 }
 925
 926 uint64 WebContentsImpl::GetUploadSize() const {
 927   return upload_size_;
 928 }
 929
 930 uint64 WebContentsImpl::GetUploadPosition() const {
 931   return upload_position_;
 932 }
 933
 934 std::set<GURL> WebContentsImpl::GetSitesInTab() const {
 935   std::set<GURL> sites;
 936   frame_tree_.ForEach(base::Bind(&CollectSites,
 937                                  base::Unretained(GetBrowserContext()),
 938                                  base::Unretained(&sites)));
 939   return sites;
 940 }
 941
 942 const std::string& WebContentsImpl::GetEncoding() const {
 943   return canonical_encoding_;
 944 }
 945
 946 bool WebContentsImpl::DisplayedInsecureContent() const {
 947   return displayed_insecure_content_;
 948 }
 949
 950 void WebContentsImpl::IncrementCapturerCount(const gfx::Size& capture_size) {
 951   DCHECK(!is_being_destroyed_);
 952   ++capturer_count_;
 953   DVLOG(1) << "There are now " << capturer_count_
 954            << " capturing(s) of WebContentsImpl@" << this;
 955
 956   // Note: This provides a hint to upstream code to size the views optimally
 957   // for quality (e.g., to avoid scaling).
 958   if (!capture_size.IsEmpty() && preferred_size_for_capture_.IsEmpty()) {
 959     preferred_size_for_capture_ = capture_size;
 960     OnPreferredSizeChanged(preferred_size_);
 961   }
 962
 963   // Ensure that all views are un-occluded before capture begins.
 964   WasUnOccluded();
 965 }
 966
 967 void WebContentsImpl::DecrementCapturerCount() {
 968   --capturer_count_;
 969   DVLOG(1) << "There are now " << capturer_count_
 970            << " capturing(s) of WebContentsImpl@" << this;
 971   DCHECK_LE(0, capturer_count_);
 972
 973   if (is_being_destroyed_)
 974     return;
 975
 976   if (capturer_count_ == 0) {
 977     const gfx::Size old_size = preferred_size_for_capture_;
 978     preferred_size_for_capture_ = gfx::Size();
 979     OnPreferredSizeChanged(old_size);
 980   }
 981
 982   if (IsHidden()) {
 983     DVLOG(1) << "Executing delayed WasHidden().";
 984     WasHidden();
 985   }
 986 }
 987
 988 int WebContentsImpl::GetCapturerCount() const {
 989   return capturer_count_;
 990 }
 991
 992 bool WebContentsImpl::IsAudioMuted() const {
 993   return audio_muter_.get() && audio_muter_->is_muting();
 994 }
 995
 996 void WebContentsImpl::SetAudioMuted(bool mute) {
 997   DVLOG(1) << "SetAudioMuted(mute=" << mute << "), was " << IsAudioMuted()
 998            << " for WebContentsImpl@" << this;
 999
1000   if (mute == IsAudioMuted())
1001     return;
1002
1003   if (mute) {
1004     if (!audio_muter_)
1005       audio_muter_.reset(new WebContentsAudioMuter(this));
1006     audio_muter_->StartMuting();
1007   } else {
1008     DCHECK(audio_muter_);
1009     audio_muter_->StopMuting();
1010   }
1011
1012   // Notification for UI updates in response to the changed muting state.
1013   NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB);
1014 }
1015
1016 bool WebContentsImpl::IsCrashed() const {
1017   return (crashed_status_ == base::TERMINATION_STATUS_PROCESS_CRASHED ||
1018           crashed_status_ == base::TERMINATION_STATUS_ABNORMAL_TERMINATION ||
1019           crashed_status_ == base::TERMINATION_STATUS_PROCESS_WAS_KILLED);
1020 }
1021
1022 void WebContentsImpl::SetIsCrashed(base::TerminationStatus status,
1023                                    int error_code) {
1024   if (status == crashed_status_)
1025     return;
1026
1027   crashed_status_ = status;
1028   crashed_error_code_ = error_code;
1029   NotifyNavigationStateChanged(INVALIDATE_TYPE_TAB);
1030 }
1031
1032 base::TerminationStatus WebContentsImpl::GetCrashedStatus() const {
1033   return crashed_status_;
1034 }
1035
1036 bool WebContentsImpl::IsBeingDestroyed() const {
1037   return is_being_destroyed_;
1038 }
1039
1040 void WebContentsImpl::NotifyNavigationStateChanged(
1041     InvalidateTypes changed_flags) {
1042   // Create and release the audio power save blocker depending on whether the
1043   // tab is actively producing audio or not.
1044   if ((changed_flags & INVALIDATE_TYPE_TAB) &&
1045       AudioStreamMonitor::monitoring_available()) {
1046     if (WasRecentlyAudible()) {
1047       if (!audio_power_save_blocker_)
1048         CreateAudioPowerSaveBlocker();
1049     } else {
1050       audio_power_save_blocker_.reset();
1051     }
1052   }
1053
1054   if (delegate_)
1055     delegate_->NavigationStateChanged(this, changed_flags);
1056 }
1057
1058 base::TimeTicks WebContentsImpl::GetLastActiveTime() const {
1059   return last_active_time_;
1060 }
1061
1062 void WebContentsImpl::WasShown() {
1063   controller_.SetActive(true);
1064
1065   for (RenderWidgetHostView* view : GetRenderWidgetHostViewsInTree()) {
1066     if (view) {
1067       view->Show();
1068 #if defined(OS_MACOSX)
1069       view->SetActive(true);
1070 #endif
1071     }
1072   }
1073
1074   last_active_time_ = base::TimeTicks::Now();
1075
1076   // The resize rect might have changed while this was inactive -- send the new
1077   // one to make sure it's up to date.
1078   RenderViewHostImpl* rvh =
1079       static_cast<RenderViewHostImpl*>(GetRenderViewHost());
1080   if (rvh) {
1081     rvh->ResizeRectChanged(GetRootWindowResizerRect());
1082   }
1083
1084   // Restore power save blocker if there are active video players running.
1085   if (!active_video_players_.empty() && !video_power_save_blocker_)
1086     CreateVideoPowerSaveBlocker();
1087
1088   FOR_EACH_OBSERVER(WebContentsObserver, observers_, WasShown());
1089
1090   should_normally_be_visible_ = true;
1091 }
1092
1093 void WebContentsImpl::WasHidden() {
1094   // If there are entities capturing screenshots or video (e.g., mirroring),
1095   // don't activate the "disable rendering" optimization.
1096   if (capturer_count_ == 0) {
1097     // |GetRenderViewHost()| can be NULL if the user middle clicks a link to
1098     // open a tab in the background, then closes the tab before selecting it.
1099     // This is because closing the tab calls WebContentsImpl::Destroy(), which
1100     // removes the |GetRenderViewHost()|; then when we actually destroy the
1101     // window, OnWindowPosChanged() notices and calls WasHidden() (which
1102     // calls us).
1103     for (RenderWidgetHostView* view : GetRenderWidgetHostViewsInTree()) {
1104       if (view)
1105         view->Hide();
1106     }
1107
1108     // Release any video power save blockers held as video is not visible.
1109     video_power_save_blocker_.reset();
1110   }
1111
1112   FOR_EACH_OBSERVER(WebContentsObserver, observers_, WasHidden());
1113
1114   should_normally_be_visible_ = false;
1115 }
1116
1117 void WebContentsImpl::WasOccluded() {
1118   if (capturer_count_ > 0)
1119     return;
1120
1121   for (RenderWidgetHostView* view : GetRenderWidgetHostViewsInTree()) {
1122     if (view)
1123       view->WasOccluded();
1124   }
1125 }
1126
1127 void WebContentsImpl::WasUnOccluded() {
1128   for (RenderWidgetHostView* view : GetRenderWidgetHostViewsInTree()) {
1129     if (view)
1130       view->WasUnOccluded();
1131   }
1132 }
1133
1134 bool WebContentsImpl::NeedToFireBeforeUnload() {
1135   bool sudden_termination_allowed = true;
1136   frame_tree_.ForEach(base::Bind(
1137         &SuddenTerminationAllowed, &sudden_termination_allowed));
1138   // TODO(creis): Should we fire even for interstitial pages?
1139   return WillNotifyDisconnection() &&
1140       !ShowingInterstitialPage() &&
1141       !sudden_termination_allowed;
1142 }
1143
1144 void WebContentsImpl::DispatchBeforeUnload(bool for_cross_site_transition) {
1145   GetMainFrame()->DispatchBeforeUnload(for_cross_site_transition);
1146 }
1147
1148 void WebContentsImpl::Stop() {
1149   GetRenderManager()->Stop();
1150   FOR_EACH_OBSERVER(WebContentsObserver, observers_, NavigationStopped());
1151 }
1152
1153 WebContents* WebContentsImpl::Clone() {
1154   // We use our current SiteInstance since the cloned entry will use it anyway.
1155   // We pass our own opener so that the cloned page can access it if it was
1156   // before.
1157   CreateParams create_params(GetBrowserContext(), GetSiteInstance());
1158   create_params.initial_size = GetContainerBounds().size();
1159   WebContentsImpl* tc = CreateWithOpener(create_params, opener_);
1160   tc->GetController().CopyStateFrom(controller_);
1161   FOR_EACH_OBSERVER(WebContentsObserver,
1162                     observers_,
1163                     DidCloneToNewWebContents(this, tc));
1164   return tc;
1165 }
1166
1167 void WebContentsImpl::Observe(int type,
1168                               const NotificationSource& source,
1169                               const NotificationDetails& details) {
1170   switch (type) {
1171     case NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED: {
1172       RenderWidgetHost* host = Source<RenderWidgetHost>(source).ptr();
1173       RenderWidgetHostView* view = host->GetView();
1174       if (view == GetFullscreenRenderWidgetHostView()) {
1175         // We cannot just call view_->RestoreFocus() here.  On some platforms,
1176         // attempting to focus the currently-invisible WebContentsView will be
1177         // flat-out ignored.  Therefore, this boolean is used to track whether
1178         // we will request focus after the fullscreen widget has been
1179         // destroyed.
1180         fullscreen_widget_had_focus_at_shutdown_ = (view && view->HasFocus());
1181       } else {
1182         for (PendingWidgetViews::iterator i = pending_widget_views_.begin();
1183              i != pending_widget_views_.end(); ++i) {
1184           if (host->GetView() == i->second) {
1185             pending_widget_views_.erase(i);
1186             break;
1187           }
1188         }
1189       }
1190       break;
1191     }
1192     default:
1193       NOTREACHED();
1194   }
1195 }
1196
1197 WebContents* WebContentsImpl::GetWebContents() {
1198   return this;
1199 }
1200
1201 void WebContentsImpl::Init(const WebContents::CreateParams& params) {
1202   // This is set before initializing the render manager since
1203   // RenderFrameHostManager::Init calls back into us via its delegate to ask if
1204   // it should be hidden.
1205   should_normally_be_visible_ = !params.initially_hidden;
1206
1207   // Either both routing ids can be given, or neither can be.
1208   DCHECK((params.routing_id == MSG_ROUTING_NONE &&
1209               params.main_frame_routing_id == MSG_ROUTING_NONE) ||
1210          (params.routing_id != MSG_ROUTING_NONE &&
1211               params.main_frame_routing_id != MSG_ROUTING_NONE));
1212   GetRenderManager()->Init(
1213       params.browser_context, params.site_instance, params.routing_id,
1214       params.main_frame_routing_id);
1215
1216   WebContentsViewDelegate* delegate =
1217       GetContentClient()->browser()->GetWebContentsViewDelegate(this);
1218
1219   if (browser_plugin_guest_) {
1220     scoped_ptr<WebContentsView> platform_view(CreateWebContentsView(
1221         this, delegate, &render_view_host_delegate_view_));
1222
1223     WebContentsViewGuest* rv = new WebContentsViewGuest(
1224         this, browser_plugin_guest_.get(), platform_view.Pass(),
1225         render_view_host_delegate_view_);
1226     render_view_host_delegate_view_ = rv;
1227     view_.reset(rv);
1228   } else {
1229     // Regular WebContentsView.
1230     view_.reset(CreateWebContentsView(
1231         this, delegate, &render_view_host_delegate_view_));
1232   }
1233   CHECK(render_view_host_delegate_view_);
1234   CHECK(view_.get());
1235
1236   gfx::Size initial_size = params.initial_size;
1237   view_->CreateView(initial_size, params.context);
1238
1239   // Listen for whether our opener gets destroyed.
1240   if (opener_)
1241     AddDestructionObserver(opener_);
1242
1243 #if defined(ENABLE_PLUGINS)
1244   plugin_content_origin_whitelist_.reset(
1245       new PluginContentOriginWhitelist(this));
1246 #endif
1247
1248   registrar_.Add(this,
1249                  NOTIFICATION_RENDER_WIDGET_HOST_DESTROYED,
1250                  NotificationService::AllBrowserContextsAndSources());
1251
1252   screen_orientation_dispatcher_host_.reset(
1253       new ScreenOrientationDispatcherHostImpl(this));
1254
1255   manifest_manager_host_.reset(new ManifestManagerHost(this));
1256
1257 #if defined(OS_ANDROID)
1258   date_time_chooser_.reset(new DateTimeChooserAndroid());
1259 #endif
1260
1261   // BrowserPluginGuest::Init needs to be called after this WebContents has
1262   // a RenderWidgetHostViewGuest. That is, |view_->CreateView| above.
1263   if (browser_plugin_guest_)
1264     browser_plugin_guest_->Init();
1265
1266   for (size_t i = 0; i < g_created_callbacks.Get().size(); i++)
1267     g_created_callbacks.Get().at(i).Run(this);
1268 }
1269
1270 void WebContentsImpl::OnWebContentsDestroyed(WebContentsImpl* web_contents) {
1271   RemoveDestructionObserver(web_contents);
1272
1273   // Clear the opener if it has been closed.
1274   if (web_contents == opener_) {
1275     opener_ = NULL;
1276     return;
1277   }
1278   // Clear a pending contents that has been closed before being shown.
1279   for (PendingContents::iterator iter = pending_contents_.begin();
1280        iter != pending_contents_.end();
1281        ++iter) {
1282     if (iter->second != web_contents)
1283       continue;
1284     pending_contents_.erase(iter);
1285     return;
1286   }
1287   NOTREACHED();
1288 }
1289
1290 void WebContentsImpl::AddDestructionObserver(WebContentsImpl* web_contents) {
1291   if (!ContainsKey(destruction_observers_, web_contents)) {
1292     destruction_observers_[web_contents] =
1293         new DestructionObserver(this, web_contents);
1294   }
1295 }
1296
1297 void WebContentsImpl::RemoveDestructionObserver(WebContentsImpl* web_contents) {
1298   DestructionObservers::iterator iter =
1299       destruction_observers_.find(web_contents);
1300   if (iter != destruction_observers_.end()) {
1301     delete destruction_observers_[web_contents];
1302     destruction_observers_.erase(iter);
1303   }
1304 }
1305
1306 void WebContentsImpl::AddObserver(WebContentsObserver* observer) {
1307   observers_.AddObserver(observer);
1308 }
1309
1310 void WebContentsImpl::RemoveObserver(WebContentsObserver* observer) {
1311   observers_.RemoveObserver(observer);
1312 }
1313
1314 std::set<RenderWidgetHostView*>
1315 WebContentsImpl::GetRenderWidgetHostViewsInTree() {
1316   std::set<RenderWidgetHostView*> set;
1317   if (ShowingInterstitialPage()) {
1318     set.insert(GetRenderWidgetHostView());
1319   } else {
1320     ForEachFrame(
1321         base::Bind(&AddRenderWidgetHostViewToSet, base::Unretained(&set)));
1322   }
1323   return set;
1324 }
1325
1326 void WebContentsImpl::Activate() {
1327   if (delegate_)
1328     delegate_->ActivateContents(this);
1329 }
1330
1331 void WebContentsImpl::Deactivate() {
1332   if (delegate_)
1333     delegate_->DeactivateContents(this);
1334 }
1335
1336 void WebContentsImpl::LostCapture() {
1337   if (delegate_)
1338     delegate_->LostCapture();
1339 }
1340
1341 void WebContentsImpl::RenderWidgetDeleted(
1342     RenderWidgetHostImpl* render_widget_host) {
1343   if (is_being_destroyed_) {
1344     // |created_widgets_| might have been destroyed.
1345     return;
1346   }
1347
1348   std::set<RenderWidgetHostImpl*>::iterator iter =
1349       created_widgets_.find(render_widget_host);
1350   if (iter != created_widgets_.end())
1351     created_widgets_.erase(iter);
1352
1353   if (render_widget_host &&
1354       render_widget_host->GetRoutingID() == fullscreen_widget_routing_id_) {
1355     if (delegate_ && delegate_->EmbedsFullscreenWidget())
1356       delegate_->ExitFullscreenModeForTab(this);
1357     FOR_EACH_OBSERVER(WebContentsObserver,
1358                       observers_,
1359                       DidDestroyFullscreenWidget(
1360                           fullscreen_widget_routing_id_));
1361     fullscreen_widget_routing_id_ = MSG_ROUTING_NONE;
1362     if (fullscreen_widget_had_focus_at_shutdown_)
1363       view_->RestoreFocus();
1364   }
1365 }
1366
1367 void WebContentsImpl::RenderWidgetGotFocus(
1368     RenderWidgetHostImpl* render_widget_host) {
1369   // Notify the delegate if an embedded fullscreen widget was focused.
1370   if (delegate_ && render_widget_host &&
1371       delegate_->EmbedsFullscreenWidget() &&
1372       render_widget_host->GetView() == GetFullscreenRenderWidgetHostView())
1373     delegate_->WebContentsFocused(this);
1374 }
1375
1376 void WebContentsImpl::RenderWidgetWasResized(
1377     RenderWidgetHostImpl* render_widget_host,
1378     bool width_changed) {
1379   RenderFrameHostImpl* rfh = GetMainFrame();
1380   if (!rfh || render_widget_host != rfh->GetRenderWidgetHost())
1381     return;
1382
1383   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
1384                     MainFrameWasResized(width_changed));
1385 }
1386
1387 bool WebContentsImpl::PreHandleKeyboardEvent(
1388     const NativeWebKeyboardEvent& event,
1389     bool* is_keyboard_shortcut) {
1390   return delegate_ &&
1391       delegate_->PreHandleKeyboardEvent(this, event, is_keyboard_shortcut);
1392 }
1393
1394 void WebContentsImpl::HandleKeyboardEvent(const NativeWebKeyboardEvent& event) {
1395   if (browser_plugin_embedder_ &&
1396       browser_plugin_embedder_->HandleKeyboardEvent(event)) {
1397     return;
1398   }
1399   if (delegate_)
1400     delegate_->HandleKeyboardEvent(this, event);
1401 }
1402
1403 bool WebContentsImpl::HandleWheelEvent(
1404     const blink::WebMouseWheelEvent& event) {
1405 #if !defined(OS_MACOSX)
1406   // On platforms other than Mac, control+mousewheel may change zoom. On Mac,
1407   // this isn't done for two reasons:
1408   //   -the OS already has a gesture to do this through pinch-zoom
1409   //   -if a user starts an inertial scroll, let's go, and presses control
1410   //      (i.e. control+tab) then the OS's buffered scroll events will come in
1411   //      with control key set which isn't what the user wants
1412   if (delegate_ && event.wheelTicksY &&
1413       (event.modifiers & blink::WebInputEvent::ControlKey) &&
1414       !event.canScroll) {
1415     delegate_->ContentsZoomChange(event.wheelTicksY > 0);
1416     return true;
1417   }
1418 #endif
1419   return false;
1420 }
1421
1422 bool WebContentsImpl::PreHandleGestureEvent(
1423     const blink::WebGestureEvent& event) {
1424   return delegate_ && delegate_->PreHandleGestureEvent(this, event);
1425 }
1426
1427 void WebContentsImpl::HandleMouseDown() {
1428   if (delegate_)
1429     delegate_->HandleMouseDown();
1430 }
1431
1432 void WebContentsImpl::HandleMouseUp() {
1433   if (delegate_)
1434     delegate_->HandleMouseUp();
1435 }
1436
1437 void WebContentsImpl::HandlePointerActivate() {
1438   if (delegate_)
1439     delegate_->HandlePointerActivate();
1440 }
1441
1442 void WebContentsImpl::HandleGestureBegin() {
1443   if (delegate_)
1444     delegate_->HandleGestureBegin();
1445 }
1446
1447 void WebContentsImpl::HandleGestureEnd() {
1448   if (delegate_)
1449     delegate_->HandleGestureEnd();
1450 }
1451
1452 void WebContentsImpl::EnterFullscreenMode(const GURL& origin) {
1453   // This method is being called to enter renderer-initiated fullscreen mode.
1454   // Make sure any existing fullscreen widget is shut down first.
1455   RenderWidgetHostView* const widget_view = GetFullscreenRenderWidgetHostView();
1456   if (widget_view)
1457     RenderWidgetHostImpl::From(widget_view->GetRenderWidgetHost())->Shutdown();
1458
1459   if (delegate_)
1460     delegate_->EnterFullscreenModeForTab(this, origin);
1461
1462   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
1463                     DidToggleFullscreenModeForTab(IsFullscreenForCurrentTab()));
1464 }
1465
1466 void WebContentsImpl::ExitFullscreenMode() {
1467   // This method is being called to leave renderer-initiated fullscreen mode.
1468   // Make sure any existing fullscreen widget is shut down first.
1469   RenderWidgetHostView* const widget_view = GetFullscreenRenderWidgetHostView();
1470   if (widget_view)
1471     RenderWidgetHostImpl::From(widget_view->GetRenderWidgetHost())->Shutdown();
1472
1473 #if defined(OS_ANDROID)
1474   ContentVideoView* video_view = ContentVideoView::GetInstance();
1475   if (video_view != NULL)
1476     video_view->OnExitFullscreen();
1477 #endif
1478
1479   if (delegate_)
1480     delegate_->ExitFullscreenModeForTab(this);
1481
1482   FOR_EACH_OBSERVER(WebContentsObserver,
1483                     observers_,
1484                     DidToggleFullscreenModeForTab(IsFullscreenForCurrentTab()));
1485 }
1486
1487 bool WebContentsImpl::IsFullscreenForCurrentTab() const {
1488   return delegate_ ? delegate_->IsFullscreenForTabOrPending(this) : false;
1489 }
1490
1491 void WebContentsImpl::RequestToLockMouse(bool user_gesture,
1492                                          bool last_unlocked_by_target) {
1493   if (delegate_) {
1494     delegate_->RequestToLockMouse(this, user_gesture, last_unlocked_by_target);
1495   } else {
1496     GotResponseToLockMouseRequest(false);
1497   }
1498 }
1499
1500 void WebContentsImpl::LostMouseLock() {
1501   if (delegate_)
1502     delegate_->LostMouseLock();
1503 }
1504
1505 void WebContentsImpl::CreateNewWindow(
1506     int render_process_id,
1507     int route_id,
1508     int main_frame_route_id,
1509     const ViewHostMsg_CreateWindow_Params& params,
1510     SessionStorageNamespace* session_storage_namespace) {
1511   // We usually create the new window in the same BrowsingInstance (group of
1512   // script-related windows), by passing in the current SiteInstance.  However,
1513   // if the opener is being suppressed (in a non-guest), we create a new
1514   // SiteInstance in its own BrowsingInstance.
1515   bool is_guest = BrowserPluginGuest::IsGuest(this);
1516
1517   // If the opener is to be suppressed, the new window can be in any process.
1518   // Since routing ids are process specific, we must not have one passed in
1519   // as argument here.
1520   DCHECK(!params.opener_suppressed || route_id == MSG_ROUTING_NONE);
1521
1522   scoped_refptr<SiteInstance> site_instance =
1523       params.opener_suppressed && !is_guest ?
1524       SiteInstance::CreateForURL(GetBrowserContext(), params.target_url) :
1525       GetSiteInstance();
1526
1527   // A message to create a new window can only come from the active process for
1528   // this WebContentsImpl instance. If any other process sends the request,
1529   // it is invalid and the process must be terminated.
1530   if (GetRenderProcessHost()->GetID() != render_process_id) {
1531     RenderProcessHost* rph = RenderProcessHost::FromID(render_process_id);
1532     base::ProcessHandle process_handle = rph->GetHandle();
1533     if (process_handle != base::kNullProcessHandle) {
1534       RecordAction(
1535           base::UserMetricsAction("Terminate_ProcessMismatch_CreateNewWindow"));
1536       rph->Shutdown(RESULT_CODE_KILLED, false);
1537     }
1538     return;
1539   }
1540
1541   // We must assign the SessionStorageNamespace before calling Init().
1542   //
1543   // http://crbug.com/142685
1544   const std::string& partition_id =
1545       GetContentClient()->browser()->
1546           GetStoragePartitionIdForSite(GetBrowserContext(),
1547                                        site_instance->GetSiteURL());
1548   StoragePartition* partition = BrowserContext::GetStoragePartition(
1549       GetBrowserContext(), site_instance.get());
1550   DOMStorageContextWrapper* dom_storage_context =
1551       static_cast<DOMStorageContextWrapper*>(partition->GetDOMStorageContext());
1552   SessionStorageNamespaceImpl* session_storage_namespace_impl =
1553       static_cast<SessionStorageNamespaceImpl*>(session_storage_namespace);
1554   CHECK(session_storage_namespace_impl->IsFromContext(dom_storage_context));
1555
1556   if (delegate_ &&
1557       !delegate_->ShouldCreateWebContents(this,
1558                                           route_id,
1559                                           main_frame_route_id,
1560                                           params.window_container_type,
1561                                           params.frame_name,
1562                                           params.target_url,
1563                                           partition_id,
1564                                           session_storage_namespace)) {
1565     if (route_id != MSG_ROUTING_NONE &&
1566         !RenderViewHost::FromID(render_process_id, route_id)) {
1567       // If the embedder didn't create a WebContents for this route, we need to
1568       // delete the RenderView that had already been created.
1569       Send(new ViewMsg_Close(route_id));
1570     }
1571     GetRenderViewHost()->GetProcess()->ResumeRequestsForView(route_id);
1572     GetRenderViewHost()->GetProcess()->ResumeRequestsForView(
1573         main_frame_route_id);
1574     return;
1575   }
1576
1577   // Create the new web contents. This will automatically create the new
1578   // WebContentsView. In the future, we may want to create the view separately.
1579   CreateParams create_params(GetBrowserContext(), site_instance.get());
1580   create_params.routing_id = route_id;
1581   create_params.main_frame_routing_id = main_frame_route_id;
1582   create_params.opener = this;
1583   create_params.opener_suppressed = params.opener_suppressed;
1584   if (params.disposition == NEW_BACKGROUND_TAB)
1585     create_params.initially_hidden = true;
1586
1587   WebContentsImpl* new_contents = NULL;
1588   if (!is_guest) {
1589     create_params.context = view_->GetNativeView();
1590     create_params.initial_size = GetContainerBounds().size();
1591     new_contents = static_cast<WebContentsImpl*>(
1592         WebContents::Create(create_params));
1593   }  else {
1594     new_contents = GetBrowserPluginGuest()->CreateNewGuestWindow(create_params);
1595   }
1596   new_contents->GetController().SetSessionStorageNamespace(
1597       partition_id,
1598       session_storage_namespace);
1599   new_contents->RenderViewCreated(new_contents->GetRenderViewHost());
1600
1601   // Save the window for later if we're not suppressing the opener (since it
1602   // will be shown immediately).
1603   if (!params.opener_suppressed) {
1604     if (!is_guest) {
1605       WebContentsView* new_view = new_contents->view_.get();
1606
1607       // TODO(brettw): It seems bogus that we have to call this function on the
1608       // newly created object and give it one of its own member variables.
1609       new_view->CreateViewForWidget(new_contents->GetRenderViewHost(), false);
1610     }
1611     // Save the created window associated with the route so we can show it
1612     // later.
1613     DCHECK_NE(MSG_ROUTING_NONE, route_id);
1614     pending_contents_[route_id] = new_contents;
1615     AddDestructionObserver(new_contents);
1616   }
1617
1618   if (delegate_) {
1619     delegate_->WebContentsCreated(
1620         this, params.opener_render_frame_id, params.frame_name,
1621         params.target_url, new_contents);
1622   }
1623
1624   if (params.opener_suppressed) {
1625     // When the opener is suppressed, the original renderer cannot access the
1626     // new window.  As a result, we need to show and navigate the window here.
1627     bool was_blocked = false;
1628     if (delegate_) {
1629       gfx::Rect initial_rect;
1630       delegate_->AddNewContents(
1631           this, new_contents, params.disposition, initial_rect,
1632           params.user_gesture, &was_blocked);
1633     }
1634     if (!was_blocked) {
1635       OpenURLParams open_params(params.target_url,
1636                                 Referrer(),
1637                                 CURRENT_TAB,
1638                                 ui::PAGE_TRANSITION_LINK,
1639                                 true /* is_renderer_initiated */);
1640       open_params.user_gesture = params.user_gesture;
1641       new_contents->OpenURL(open_params);
1642     }
1643   }
1644 }
1645
1646 void WebContentsImpl::CreateNewWidget(int render_process_id,
1647                                       int route_id,
1648                                       blink::WebPopupType popup_type) {
1649   CreateNewWidget(render_process_id, route_id, false, popup_type);
1650 }
1651
1652 void WebContentsImpl::CreateNewFullscreenWidget(int render_process_id,
1653                                                 int route_id) {
1654   CreateNewWidget(render_process_id, route_id, true, blink::WebPopupTypeNone);
1655 }
1656
1657 void WebContentsImpl::CreateNewWidget(int render_process_id,
1658                                       int route_id,
1659                                       bool is_fullscreen,
1660                                       blink::WebPopupType popup_type) {
1661   RenderProcessHost* process = GetRenderProcessHost();
1662   // A message to create a new widget can only come from the active process for
1663   // this WebContentsImpl instance. If any other process sends the request,
1664   // it is invalid and the process must be terminated.
1665   if (process->GetID() != render_process_id) {
1666     RenderProcessHost* rph = RenderProcessHost::FromID(render_process_id);
1667     base::ProcessHandle process_handle = rph->GetHandle();
1668     if (process_handle != base::kNullProcessHandle) {
1669       RecordAction(
1670           base::UserMetricsAction("Terminate_ProcessMismatch_CreateNewWidget"));
1671       rph->Shutdown(RESULT_CODE_KILLED, false);
1672     }
1673     return;
1674   }
1675
1676   RenderWidgetHostImpl* widget_host =
1677       new RenderWidgetHostImpl(this, process, route_id, IsHidden());
1678   created_widgets_.insert(widget_host);
1679
1680   RenderWidgetHostViewBase* widget_view =
1681       static_cast<RenderWidgetHostViewBase*>(
1682           view_->CreateViewForPopupWidget(widget_host));
1683   if (!widget_view)
1684     return;
1685   if (!is_fullscreen) {
1686     // Popups should not get activated.
1687     widget_view->SetPopupType(popup_type);
1688   }
1689   // Save the created widget associated with the route so we can show it later.
1690   pending_widget_views_[route_id] = widget_view;
1691
1692 #if defined(OS_MACOSX)
1693   // A RenderWidgetHostViewMac has lifetime scoped to the view. We'll retain it
1694   // to allow it to survive the trip without being hosted.
1695   base::mac::NSObjectRetain(widget_view->GetNativeView());
1696 #endif
1697 }
1698
1699 void WebContentsImpl::ShowCreatedWindow(int route_id,
1700                                         WindowOpenDisposition disposition,
1701                                         const gfx::Rect& initial_rect,
1702                                         bool user_gesture) {
1703   WebContentsImpl* contents = GetCreatedWindow(route_id);
1704   if (contents) {
1705     WebContentsDelegate* delegate = GetDelegate();
1706     if (delegate) {
1707       delegate->AddNewContents(
1708           this, contents, disposition, initial_rect, user_gesture, NULL);
1709     }
1710   }
1711 }
1712
1713 void WebContentsImpl::ShowCreatedWidget(int route_id,
1714                                         const gfx::Rect& initial_rect) {
1715   ShowCreatedWidget(route_id, false, initial_rect);
1716 }
1717
1718 void WebContentsImpl::ShowCreatedFullscreenWidget(int route_id) {
1719   ShowCreatedWidget(route_id, true, gfx::Rect());
1720 }
1721
1722 void WebContentsImpl::ShowCreatedWidget(int route_id,
1723                                         bool is_fullscreen,
1724                                         const gfx::Rect& initial_rect) {
1725   RenderWidgetHostViewBase* widget_host_view =
1726       static_cast<RenderWidgetHostViewBase*>(GetCreatedWidget(route_id));
1727   if (!widget_host_view)
1728     return;
1729
1730   RenderWidgetHostView* view = NULL;
1731   BrowserPluginGuest* guest = GetBrowserPluginGuest();
1732   if (guest && guest->embedder_web_contents()) {
1733     view = guest->embedder_web_contents()->GetRenderWidgetHostView();
1734   } else {
1735     view = GetRenderWidgetHostView();
1736   }
1737
1738   if (is_fullscreen) {
1739     DCHECK_EQ(MSG_ROUTING_NONE, fullscreen_widget_routing_id_);
1740     view_->StoreFocus();
1741     fullscreen_widget_routing_id_ = route_id;
1742     if (delegate_ && delegate_->EmbedsFullscreenWidget()) {
1743       widget_host_view->InitAsChild(GetRenderWidgetHostView()->GetNativeView());
1744       delegate_->EnterFullscreenModeForTab(this, GURL());
1745     } else {
1746       widget_host_view->InitAsFullscreen(view);
1747     }
1748     FOR_EACH_OBSERVER(WebContentsObserver,
1749                       observers_,
1750                       DidShowFullscreenWidget(route_id));
1751     if (!widget_host_view->HasFocus())
1752       widget_host_view->Focus();
1753   } else {
1754     widget_host_view->InitAsPopup(view, initial_rect);
1755   }
1756
1757   RenderWidgetHostImpl* render_widget_host_impl =
1758       RenderWidgetHostImpl::From(widget_host_view->GetRenderWidgetHost());
1759   render_widget_host_impl->Init();
1760   // Only allow privileged mouse lock for fullscreen render widget, which is
1761   // used to implement Pepper Flash fullscreen.
1762   render_widget_host_impl->set_allow_privileged_mouse_lock(is_fullscreen);
1763
1764 #if defined(OS_MACOSX)
1765   // A RenderWidgetHostViewMac has lifetime scoped to the view. Now that it's
1766   // properly embedded (or purposefully ignored) we can release the retain we
1767   // took in CreateNewWidget().
1768   base::mac::NSObjectRelease(widget_host_view->GetNativeView());
1769 #endif
1770 }
1771
1772 WebContentsImpl* WebContentsImpl::GetCreatedWindow(int route_id) {
1773   PendingContents::iterator iter = pending_contents_.find(route_id);
1774
1775   // Certain systems can block the creation of new windows. If we didn't succeed
1776   // in creating one, just return NULL.
1777   if (iter == pending_contents_.end()) {
1778     return NULL;
1779   }
1780
1781   WebContentsImpl* new_contents = iter->second;
1782   pending_contents_.erase(route_id);
1783   RemoveDestructionObserver(new_contents);
1784
1785   // Don't initialize the guest WebContents immediately.
1786   if (BrowserPluginGuest::IsGuest(new_contents))
1787     return new_contents;
1788
1789   if (!new_contents->GetRenderProcessHost()->HasConnection() ||
1790       !new_contents->GetRenderViewHost()->GetView())
1791     return NULL;
1792
1793   // Resume blocked requests for both the RenderViewHost and RenderFrameHost.
1794   // TODO(brettw): It seems bogus to reach into here and initialize the host.
1795   static_cast<RenderViewHostImpl*>(new_contents->GetRenderViewHost())->Init();
1796   new_contents->GetMainFrame()->Init();
1797
1798   return new_contents;
1799 }
1800
1801 RenderWidgetHostView* WebContentsImpl::GetCreatedWidget(int route_id) {
1802   PendingWidgetViews::iterator iter = pending_widget_views_.find(route_id);
1803   if (iter == pending_widget_views_.end()) {
1804     DCHECK(false);
1805     return NULL;
1806   }
1807
1808   RenderWidgetHostView* widget_host_view = iter->second;
1809   pending_widget_views_.erase(route_id);
1810
1811   RenderWidgetHost* widget_host = widget_host_view->GetRenderWidgetHost();
1812   if (!widget_host->GetProcess()->HasConnection()) {
1813     // The view has gone away or the renderer crashed. Nothing to do.
1814     return NULL;
1815   }
1816
1817   return widget_host_view;
1818 }
1819
1820 void WebContentsImpl::RequestMediaAccessPermission(
1821     const MediaStreamRequest& request,
1822     const MediaResponseCallback& callback) {
1823   if (delegate_) {
1824     delegate_->RequestMediaAccessPermission(this, request, callback);
1825   } else {
1826     callback.Run(MediaStreamDevices(),
1827                  MEDIA_DEVICE_FAILED_DUE_TO_SHUTDOWN,
1828                  scoped_ptr<MediaStreamUI>());
1829   }
1830 }
1831
1832 bool WebContentsImpl::CheckMediaAccessPermission(const GURL& security_origin,
1833                                                  MediaStreamType type) {
1834   DCHECK(type == MEDIA_DEVICE_AUDIO_CAPTURE ||
1835          type == MEDIA_DEVICE_VIDEO_CAPTURE);
1836   return delegate_ &&
1837          delegate_->CheckMediaAccessPermission(this, security_origin, type);
1838 }
1839
1840 SessionStorageNamespace* WebContentsImpl::GetSessionStorageNamespace(
1841     SiteInstance* instance) {
1842   return controller_.GetSessionStorageNamespace(instance);
1843 }
1844
1845 SessionStorageNamespaceMap WebContentsImpl::GetSessionStorageNamespaceMap() {
1846   return controller_.GetSessionStorageNamespaceMap();
1847 }
1848
1849 FrameTree* WebContentsImpl::GetFrameTree() {
1850   return &frame_tree_;
1851 }
1852
1853 void WebContentsImpl::SetIsVirtualKeyboardRequested(bool requested) {
1854   virtual_keyboard_requested_ = requested;
1855 }
1856
1857 bool WebContentsImpl::IsVirtualKeyboardRequested() {
1858   return virtual_keyboard_requested_;
1859 }
1860
1861 AccessibilityMode WebContentsImpl::GetAccessibilityMode() const {
1862   return accessibility_mode_;
1863 }
1864
1865 void WebContentsImpl::AccessibilityEventReceived(
1866     const std::vector<AXEventNotificationDetails>& details) {
1867   FOR_EACH_OBSERVER(
1868       WebContentsObserver, observers_, AccessibilityEventReceived(details));
1869 }
1870
1871 RenderFrameHost* WebContentsImpl::GetGuestByInstanceID(
1872     int browser_plugin_instance_id) {
1873   BrowserPluginGuestManager* guest_manager =
1874       GetBrowserContext()->GetGuestManager();
1875   WebContents* guest = guest_manager->GetGuestByInstanceID(
1876       this, browser_plugin_instance_id);
1877   if (!guest)
1878     return NULL;
1879   return guest->GetMainFrame();
1880 }
1881
1882 GeolocationServiceContext* WebContentsImpl::GetGeolocationServiceContext() {
1883   return geolocation_service_context_.get();
1884 }
1885
1886 void WebContentsImpl::OnShowValidationMessage(
1887     const gfx::Rect& anchor_in_root_view,
1888     const base::string16& main_text,
1889     const base::string16& sub_text) {
1890   if (delegate_)
1891     delegate_->ShowValidationMessage(
1892         this, anchor_in_root_view, main_text, sub_text);
1893 }
1894
1895 void WebContentsImpl::OnHideValidationMessage() {
1896   if (delegate_)
1897     delegate_->HideValidationMessage(this);
1898 }
1899
1900 void WebContentsImpl::OnMoveValidationMessage(
1901     const gfx::Rect& anchor_in_root_view) {
1902   if (delegate_)
1903     delegate_->MoveValidationMessage(this, anchor_in_root_view);
1904 }
1905
1906 void WebContentsImpl::DidSendScreenRects(RenderWidgetHostImpl* rwh) {
1907   if (browser_plugin_embedder_)
1908     browser_plugin_embedder_->DidSendScreenRects();
1909 }
1910
1911 BrowserAccessibilityManager*
1912     WebContentsImpl::GetRootBrowserAccessibilityManager() {
1913   RenderFrameHostImpl* rfh = GetMainFrame();
1914   return rfh ? rfh->browser_accessibility_manager() : NULL;
1915 }
1916
1917 BrowserAccessibilityManager*
1918     WebContentsImpl::GetOrCreateRootBrowserAccessibilityManager() {
1919   RenderFrameHostImpl* rfh = GetMainFrame();
1920   return rfh ? rfh->GetOrCreateBrowserAccessibilityManager() : NULL;
1921 }
1922
1923 void WebContentsImpl::UpdatePreferredSize(const gfx::Size& pref_size) {
1924   const gfx::Size old_size = GetPreferredSize();
1925   preferred_size_ = pref_size;
1926   OnPreferredSizeChanged(old_size);
1927 }
1928
1929 void WebContentsImpl::ResizeDueToAutoResize(const gfx::Size& new_size) {
1930   if (delegate_)
1931     delegate_->ResizeDueToAutoResize(this, new_size);
1932 }
1933
1934 WebContents* WebContentsImpl::OpenURL(const OpenURLParams& params) {
1935   if (!delegate_)
1936     return NULL;
1937
1938   WebContents* new_contents = delegate_->OpenURLFromTab(this, params);
1939   return new_contents;
1940 }
1941
1942 bool WebContentsImpl::Send(IPC::Message* message) {
1943   if (!GetRenderViewHost()) {
1944     delete message;
1945     return false;
1946   }
1947
1948   return GetRenderViewHost()->Send(message);
1949 }
1950
1951 bool WebContentsImpl::NavigateToPendingEntry(
1952     NavigationController::ReloadType reload_type) {
1953   FrameTreeNode* node = frame_tree_.root();
1954
1955   // Navigate in the FrameTreeNode specified in the pending entry, if any.  This
1956   // is currently only used in --site-per-process and tests.
1957   NavigationEntryImpl* pending_entry =
1958       NavigationEntryImpl::FromNavigationEntry(controller_.GetPendingEntry());
1959   if (pending_entry->frame_tree_node_id() != -1) {
1960     FrameTreeNode* subframe =
1961         frame_tree_.FindByID(pending_entry->frame_tree_node_id());
1962     DCHECK(subframe);
1963     if (subframe)
1964       node = subframe;
1965   }
1966
1967   return node->navigator()->NavigateToPendingEntry(
1968       node->current_frame_host(), reload_type);
1969 }
1970
1971 void WebContentsImpl::RenderFrameForInterstitialPageCreated(
1972     RenderFrameHost* render_frame_host) {
1973   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
1974                     RenderFrameForInterstitialPageCreated(render_frame_host));
1975 }
1976
1977 void WebContentsImpl::AttachInterstitialPage(
1978     InterstitialPageImpl* interstitial_page) {
1979   DCHECK(interstitial_page);
1980   GetRenderManager()->set_interstitial_page(interstitial_page);
1981
1982   // Cancel any visible dialogs so that they don't interfere with the
1983   // interstitial.
1984   if (dialog_manager_)
1985     dialog_manager_->CancelActiveAndPendingDialogs(this);
1986
1987   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
1988                     DidAttachInterstitialPage());
1989 }
1990
1991 void WebContentsImpl::DetachInterstitialPage() {
1992   if (ShowingInterstitialPage())
1993     GetRenderManager()->remove_interstitial_page();
1994   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
1995                     DidDetachInterstitialPage());
1996 }
1997
1998 void WebContentsImpl::SetHistoryOffsetAndLength(int history_offset,
1999                                                 int history_length) {
2000   SetHistoryOffsetAndLengthForView(
2001       GetRenderViewHost(), history_offset, history_length);
2002 }
2003
2004 void WebContentsImpl::SetHistoryOffsetAndLengthForView(
2005     RenderViewHost* render_view_host,
2006     int history_offset,
2007     int history_length) {
2008   render_view_host->Send(new ViewMsg_SetHistoryOffsetAndLength(
2009       render_view_host->GetRoutingID(), history_offset, history_length));
2010 }
2011
2012 void WebContentsImpl::ReloadFocusedFrame(bool ignore_cache) {
2013   RenderFrameHost* focused_frame = GetFocusedFrame();
2014   if (!focused_frame)
2015     return;
2016
2017   focused_frame->Send(new FrameMsg_Reload(
2018       focused_frame->GetRoutingID(), ignore_cache));
2019 }
2020
2021 void WebContentsImpl::Undo() {
2022   RenderFrameHost* focused_frame = GetFocusedFrame();
2023   if (!focused_frame)
2024     return;
2025
2026   focused_frame->Send(new InputMsg_Undo(focused_frame->GetRoutingID()));
2027   RecordAction(base::UserMetricsAction("Undo"));
2028 }
2029
2030 void WebContentsImpl::Redo() {
2031   RenderFrameHost* focused_frame = GetFocusedFrame();
2032   if (!focused_frame)
2033     return;
2034   focused_frame->Send(new InputMsg_Redo(focused_frame->GetRoutingID()));
2035   RecordAction(base::UserMetricsAction("Redo"));
2036 }
2037
2038 void WebContentsImpl::Cut() {
2039   RenderFrameHost* focused_frame = GetFocusedFrame();
2040   if (!focused_frame)
2041     return;
2042
2043   focused_frame->Send(new InputMsg_Cut(focused_frame->GetRoutingID()));
2044   RecordAction(base::UserMetricsAction("Cut"));
2045 }
2046
2047 void WebContentsImpl::Copy() {
2048   RenderFrameHost* focused_frame = GetFocusedFrame();
2049   if (!focused_frame)
2050     return;
2051
2052   focused_frame->Send(new InputMsg_Copy(focused_frame->GetRoutingID()));
2053   RecordAction(base::UserMetricsAction("Copy"));
2054 }
2055
2056 void WebContentsImpl::CopyToFindPboard() {
2057 #if defined(OS_MACOSX)
2058   RenderFrameHost* focused_frame = GetFocusedFrame();
2059   if (!focused_frame)
2060     return;
2061
2062   // Windows/Linux don't have the concept of a find pasteboard.
2063   focused_frame->Send(
2064       new InputMsg_CopyToFindPboard(focused_frame->GetRoutingID()));
2065   RecordAction(base::UserMetricsAction("CopyToFindPboard"));
2066 #endif
2067 }
2068
2069 void WebContentsImpl::Paste() {
2070   RenderFrameHost* focused_frame = GetFocusedFrame();
2071   if (!focused_frame)
2072     return;
2073
2074   focused_frame->Send(new InputMsg_Paste(focused_frame->GetRoutingID()));
2075   RecordAction(base::UserMetricsAction("Paste"));
2076 }
2077
2078 void WebContentsImpl::PasteAndMatchStyle() {
2079   RenderFrameHost* focused_frame = GetFocusedFrame();
2080   if (!focused_frame)
2081     return;
2082
2083   focused_frame->Send(new InputMsg_PasteAndMatchStyle(
2084       focused_frame->GetRoutingID()));
2085   RecordAction(base::UserMetricsAction("PasteAndMatchStyle"));
2086 }
2087
2088 void WebContentsImpl::Delete() {
2089   RenderFrameHost* focused_frame = GetFocusedFrame();
2090   if (!focused_frame)
2091     return;
2092
2093   focused_frame->Send(new InputMsg_Delete(focused_frame->GetRoutingID()));
2094   RecordAction(base::UserMetricsAction("DeleteSelection"));
2095 }
2096
2097 void WebContentsImpl::SelectAll() {
2098   RenderFrameHost* focused_frame = GetFocusedFrame();
2099   if (!focused_frame)
2100     return;
2101
2102   focused_frame->Send(new InputMsg_SelectAll(focused_frame->GetRoutingID()));
2103   RecordAction(base::UserMetricsAction("SelectAll"));
2104 }
2105
2106 void WebContentsImpl::Unselect() {
2107   RenderFrameHost* focused_frame = GetFocusedFrame();
2108   if (!focused_frame)
2109     return;
2110
2111   focused_frame->Send(new InputMsg_Unselect(focused_frame->GetRoutingID()));
2112   RecordAction(base::UserMetricsAction("Unselect"));
2113 }
2114
2115 void WebContentsImpl::Replace(const base::string16& word) {
2116   RenderFrameHost* focused_frame = GetFocusedFrame();
2117   if (!focused_frame)
2118     return;
2119
2120   focused_frame->Send(new InputMsg_Replace(
2121       focused_frame->GetRoutingID(), word));
2122 }
2123
2124 void WebContentsImpl::ReplaceMisspelling(const base::string16& word) {
2125   RenderFrameHost* focused_frame = GetFocusedFrame();
2126   if (!focused_frame)
2127     return;
2128
2129   focused_frame->Send(new InputMsg_ReplaceMisspelling(
2130       focused_frame->GetRoutingID(), word));
2131 }
2132
2133 void WebContentsImpl::NotifyContextMenuClosed(
2134     const CustomContextMenuContext& context) {
2135   RenderFrameHost* focused_frame = GetFocusedFrame();
2136   if (!focused_frame)
2137     return;
2138
2139   focused_frame->Send(new FrameMsg_ContextMenuClosed(
2140       focused_frame->GetRoutingID(), context));
2141 }
2142
2143 void WebContentsImpl::ExecuteCustomContextMenuCommand(
2144     int action, const CustomContextMenuContext& context) {
2145   RenderFrameHost* focused_frame = GetFocusedFrame();
2146   if (!focused_frame)
2147     return;
2148
2149   focused_frame->Send(new FrameMsg_CustomContextMenuAction(
2150       focused_frame->GetRoutingID(), context, action));
2151 }
2152
2153 gfx::NativeView WebContentsImpl::GetNativeView() {
2154   return view_->GetNativeView();
2155 }
2156
2157 gfx::NativeView WebContentsImpl::GetContentNativeView() {
2158   return view_->GetContentNativeView();
2159 }
2160
2161 gfx::NativeWindow WebContentsImpl::GetTopLevelNativeWindow() {
2162   return view_->GetTopLevelNativeWindow();
2163 }
2164
2165 gfx::Rect WebContentsImpl::GetViewBounds() {
2166   return view_->GetViewBounds();
2167 }
2168
2169 gfx::Rect WebContentsImpl::GetContainerBounds() {
2170   gfx::Rect rv;
2171   view_->GetContainerBounds(&rv);
2172   return rv;
2173 }
2174
2175 DropData* WebContentsImpl::GetDropData() {
2176   return view_->GetDropData();
2177 }
2178
2179 void WebContentsImpl::Focus() {
2180   view_->Focus();
2181 }
2182
2183 void WebContentsImpl::SetInitialFocus() {
2184   view_->SetInitialFocus();
2185 }
2186
2187 void WebContentsImpl::StoreFocus() {
2188   view_->StoreFocus();
2189 }
2190
2191 void WebContentsImpl::RestoreFocus() {
2192   view_->RestoreFocus();
2193 }
2194
2195 void WebContentsImpl::FocusThroughTabTraversal(bool reverse) {
2196   if (ShowingInterstitialPage()) {
2197     GetRenderManager()->interstitial_page()->FocusThroughTabTraversal(reverse);
2198     return;
2199   }
2200   RenderWidgetHostView* const fullscreen_view =
2201       GetFullscreenRenderWidgetHostView();
2202   if (fullscreen_view) {
2203     fullscreen_view->Focus();
2204     return;
2205   }
2206   GetRenderViewHostImpl()->SetInitialFocus(reverse);
2207 }
2208
2209 bool WebContentsImpl::ShowingInterstitialPage() const {
2210   return GetRenderManager()->interstitial_page() != NULL;
2211 }
2212
2213 InterstitialPage* WebContentsImpl::GetInterstitialPage() const {
2214   return GetRenderManager()->interstitial_page();
2215 }
2216
2217 bool WebContentsImpl::IsSavable() {
2218   // WebKit creates Document object when MIME type is application/xhtml+xml,
2219   // so we also support this MIME type.
2220   return contents_mime_type_ == "text/html" ||
2221          contents_mime_type_ == "text/xml" ||
2222          contents_mime_type_ == "application/xhtml+xml" ||
2223          contents_mime_type_ == "text/plain" ||
2224          contents_mime_type_ == "text/css" ||
2225          net::IsSupportedJavascriptMimeType(contents_mime_type_.c_str());
2226 }
2227
2228 void WebContentsImpl::OnSavePage() {
2229   // If we can not save the page, try to download it.
2230   if (!IsSavable()) {
2231     RecordDownloadSource(INITIATED_BY_SAVE_PACKAGE_ON_NON_HTML);
2232     SaveFrame(GetURL(), Referrer());
2233     return;
2234   }
2235
2236   Stop();
2237
2238   // Create the save package and possibly prompt the user for the name to save
2239   // the page as. The user prompt is an asynchronous operation that runs on
2240   // another thread.
2241   save_package_ = new SavePackage(this);
2242   save_package_->GetSaveInfo();
2243 }
2244
2245 // Used in automated testing to bypass prompting the user for file names.
2246 // Instead, the names and paths are hard coded rather than running them through
2247 // file name sanitation and extension / mime checking.
2248 bool WebContentsImpl::SavePage(const base::FilePath& main_file,
2249                                const base::FilePath& dir_path,
2250                                SavePageType save_type) {
2251   // Stop the page from navigating.
2252   Stop();
2253
2254   save_package_ = new SavePackage(this, save_type, main_file, dir_path);
2255   return save_package_->Init(SavePackageDownloadCreatedCallback());
2256 }
2257
2258 void WebContentsImpl::SaveFrame(const GURL& url,
2259                                 const Referrer& referrer) {
2260   if (!GetURL().is_valid())
2261     return;
2262   if (delegate_ && delegate_->SaveFrame(url, referrer))
2263     return;
2264
2265   bool is_main_frame = (url == GetURL());
2266
2267   DownloadManager* dlm =
2268       BrowserContext::GetDownloadManager(GetBrowserContext());
2269   if (!dlm)
2270     return;
2271   int64 post_id = -1;
2272   if (is_main_frame) {
2273     const NavigationEntry* entry = controller_.GetLastCommittedEntry();
2274     if (entry)
2275       post_id = entry->GetPostID();
2276   }
2277   scoped_ptr<DownloadUrlParameters> params(
2278       DownloadUrlParameters::FromWebContents(this, url));
2279   params->set_referrer(referrer);
2280   params->set_post_id(post_id);
2281   params->set_prefer_cache(true);
2282   if (post_id >= 0)
2283     params->set_method("POST");
2284   params->set_prompt(true);
2285   dlm->DownloadUrl(params.Pass());
2286 }
2287
2288 void WebContentsImpl::GenerateMHTML(
2289     const base::FilePath& file,
2290     const base::Callback<void(int64)>& callback) {
2291   MHTMLGenerationManager::GetInstance()->SaveMHTML(this, file, callback);
2292 }
2293
2294 const std::string& WebContentsImpl::GetContentsMimeType() const {
2295   return contents_mime_type_;
2296 }
2297
2298 bool WebContentsImpl::WillNotifyDisconnection() const {
2299   return notify_disconnection_;
2300 }
2301
2302 void WebContentsImpl::SetOverrideEncoding(const std::string& encoding) {
2303   SetEncoding(encoding);
2304   Send(new ViewMsg_SetPageEncoding(GetRoutingID(), encoding));
2305 }
2306
2307 void WebContentsImpl::ResetOverrideEncoding() {
2308   canonical_encoding_.clear();
2309   Send(new ViewMsg_ResetPageEncodingToDefault(GetRoutingID()));
2310 }
2311
2312 RendererPreferences* WebContentsImpl::GetMutableRendererPrefs() {
2313   return &renderer_preferences_;
2314 }
2315
2316 void WebContentsImpl::Close() {
2317   Close(GetRenderViewHost());
2318 }
2319
2320 void WebContentsImpl::DragSourceEndedAt(int client_x, int client_y,
2321     int screen_x, int screen_y, blink::WebDragOperation operation) {
2322   if (browser_plugin_embedder_.get())
2323     browser_plugin_embedder_->DragSourceEndedAt(client_x, client_y,
2324         screen_x, screen_y, operation);
2325   if (GetRenderViewHost())
2326     GetRenderViewHostImpl()->DragSourceEndedAt(client_x, client_y,
2327         screen_x, screen_y, operation);
2328 }
2329
2330 void WebContentsImpl::DidGetResourceResponseStart(
2331   const ResourceRequestDetails& details) {
2332   controller_.ssl_manager()->DidStartResourceResponse(details);
2333
2334   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
2335                     DidGetResourceResponseStart(details));
2336
2337   // TODO(avi): Remove. http://crbug.com/170921
2338   NotificationService::current()->Notify(
2339       NOTIFICATION_RESOURCE_RESPONSE_STARTED,
2340       Source<WebContents>(this),
2341       Details<const ResourceRequestDetails>(&details));
2342 }
2343
2344 void WebContentsImpl::DidGetRedirectForResourceRequest(
2345   RenderFrameHost* render_frame_host,
2346   const ResourceRedirectDetails& details) {
2347   controller_.ssl_manager()->DidReceiveResourceRedirect(details);
2348
2349   FOR_EACH_OBSERVER(
2350       WebContentsObserver,
2351       observers_,
2352       DidGetRedirectForResourceRequest(render_frame_host, details));
2353
2354   // TODO(avi): Remove. http://crbug.com/170921
2355   NotificationService::current()->Notify(
2356       NOTIFICATION_RESOURCE_RECEIVED_REDIRECT,
2357       Source<WebContents>(this),
2358       Details<const ResourceRedirectDetails>(&details));
2359 }
2360
2361 void WebContentsImpl::SystemDragEnded() {
2362   if (GetRenderViewHost())
2363     GetRenderViewHostImpl()->DragSourceSystemDragEnded();
2364   if (delegate_)
2365     delegate_->DragEnded();
2366   if (browser_plugin_embedder_.get())
2367     browser_plugin_embedder_->SystemDragEnded();
2368 }
2369
2370 void WebContentsImpl::UserGestureDone() {
2371   OnUserGesture();
2372 }
2373
2374 void WebContentsImpl::SetClosedByUserGesture(bool value) {
2375   closed_by_user_gesture_ = value;
2376 }
2377
2378 bool WebContentsImpl::GetClosedByUserGesture() const {
2379   return closed_by_user_gesture_;
2380 }
2381
2382 void WebContentsImpl::ViewSource() {
2383   if (!delegate_)
2384     return;
2385
2386   NavigationEntry* entry = GetController().GetLastCommittedEntry();
2387   if (!entry)
2388     return;
2389
2390   delegate_->ViewSourceForTab(this, entry->GetURL());
2391 }
2392
2393 void WebContentsImpl::ViewFrameSource(const GURL& url,
2394                                       const PageState& page_state) {
2395   if (!delegate_)
2396     return;
2397
2398   delegate_->ViewSourceForFrame(this, url, page_state);
2399 }
2400
2401 int WebContentsImpl::GetMinimumZoomPercent() const {
2402   return minimum_zoom_percent_;
2403 }
2404
2405 int WebContentsImpl::GetMaximumZoomPercent() const {
2406   return maximum_zoom_percent_;
2407 }
2408
2409 gfx::Size WebContentsImpl::GetPreferredSize() const {
2410   return capturer_count_ == 0 ? preferred_size_ : preferred_size_for_capture_;
2411 }
2412
2413 bool WebContentsImpl::GotResponseToLockMouseRequest(bool allowed) {
2414   if (GetBrowserPluginGuest())
2415     return GetBrowserPluginGuest()->LockMouse(allowed);
2416
2417   return GetRenderViewHost() ?
2418       GetRenderViewHostImpl()->GotResponseToLockMouseRequest(allowed) : false;
2419 }
2420
2421 bool WebContentsImpl::HasOpener() const {
2422   return opener_ != NULL;
2423 }
2424
2425 WebContents* WebContentsImpl::GetOpener() const {
2426   return static_cast<WebContents*>(opener_);
2427 }
2428
2429 void WebContentsImpl::DidChooseColorInColorChooser(SkColor color) {
2430   if (!color_chooser_info_.get())
2431     return;
2432   RenderFrameHost* rfh = RenderFrameHost::FromID(
2433       color_chooser_info_->render_process_id,
2434       color_chooser_info_->render_frame_id);
2435   if (!rfh)
2436     return;
2437
2438   rfh->Send(new FrameMsg_DidChooseColorResponse(
2439       rfh->GetRoutingID(), color_chooser_info_->identifier, color));
2440 }
2441
2442 void WebContentsImpl::DidEndColorChooser() {
2443   if (!color_chooser_info_.get())
2444     return;
2445   RenderFrameHost* rfh = RenderFrameHost::FromID(
2446       color_chooser_info_->render_process_id,
2447       color_chooser_info_->render_frame_id);
2448   if (!rfh)
2449     return;
2450
2451   rfh->Send(new FrameMsg_DidEndColorChooser(
2452       rfh->GetRoutingID(), color_chooser_info_->identifier));
2453   color_chooser_info_.reset();
2454 }
2455
2456 int WebContentsImpl::DownloadImage(const GURL& url,
2457                                    bool is_favicon,
2458                                    uint32_t max_bitmap_size,
2459                                    const ImageDownloadCallback& callback) {
2460   int id = StartDownload(GetMainFrame(), url, is_favicon, max_bitmap_size);
2461   image_download_map_[id] = callback;
2462   return id;
2463 }
2464
2465 bool WebContentsImpl::IsSubframe() const {
2466   return is_subframe_;
2467 }
2468
2469 void WebContentsImpl::Find(int request_id,
2470                            const base::string16& search_text,
2471                            const blink::WebFindOptions& options) {
2472   // See if a top level browser plugin handles the find request first.
2473   if (browser_plugin_embedder_ &&
2474       browser_plugin_embedder_->Find(request_id, search_text, options)) {
2475     return;
2476   }
2477   Send(new ViewMsg_Find(GetRoutingID(), request_id, search_text, options));
2478 }
2479
2480 void WebContentsImpl::StopFinding(StopFindAction action) {
2481   // See if a top level browser plugin handles the stop finding request first.
2482   if (browser_plugin_embedder_ &&
2483       browser_plugin_embedder_->StopFinding(action)) {
2484     return;
2485   }
2486   Send(new ViewMsg_StopFinding(GetRoutingID(), action));
2487 }
2488
2489 void WebContentsImpl::InsertCSS(const std::string& css) {
2490   GetMainFrame()->Send(new FrameMsg_CSSInsertRequest(
2491       GetMainFrame()->GetRoutingID(), css));
2492 }
2493
2494 bool WebContentsImpl::WasRecentlyAudible() {
2495   return audio_stream_monitor_.WasRecentlyAudible();
2496 }
2497
2498 void WebContentsImpl::GetManifest(const GetManifestCallback& callback) {
2499   manifest_manager_host_->GetManifest(GetMainFrame(), callback);
2500 }
2501
2502 void WebContentsImpl::ExitFullscreen() {
2503   // Clean up related state and initiate the fullscreen exit.
2504   GetRenderViewHostImpl()->RejectMouseLockOrUnlockIfNecessary();
2505   ExitFullscreenMode();
2506 }
2507
2508 bool WebContentsImpl::FocusLocationBarByDefault() {
2509   NavigationEntry* entry = controller_.GetVisibleEntry();
2510   if (entry && entry->GetURL() == GURL(url::kAboutBlankURL))
2511     return true;
2512   return delegate_ && delegate_->ShouldFocusLocationBarByDefault(this);
2513 }
2514
2515 void WebContentsImpl::SetFocusToLocationBar(bool select_all) {
2516   if (delegate_)
2517     delegate_->SetFocusToLocationBar(select_all);
2518 }
2519
2520 void WebContentsImpl::DidStartProvisionalLoad(
2521     RenderFrameHostImpl* render_frame_host,
2522     const GURL& validated_url,
2523     bool is_error_page,
2524     bool is_iframe_srcdoc) {
2525   // Notify observers about the start of the provisional load.
2526   FOR_EACH_OBSERVER(
2527       WebContentsObserver,
2528       observers_,
2529       DidStartProvisionalLoadForFrame(
2530           render_frame_host, validated_url, is_error_page, is_iframe_srcdoc));
2531
2532   // Notify accessibility if this is a reload.
2533   NavigationEntry* entry = controller_.GetVisibleEntry();
2534   if (entry && ui::PageTransitionCoreTypeIs(
2535           entry->GetTransitionType(), ui::PAGE_TRANSITION_RELOAD)) {
2536     FrameTreeNode* ftn = render_frame_host->frame_tree_node();
2537     BrowserAccessibilityManager* manager =
2538         ftn->current_frame_host()->browser_accessibility_manager();
2539     if (manager)
2540       manager->UserIsReloading();
2541   }
2542 }
2543
2544 void WebContentsImpl::DidStartNavigationTransition(
2545     RenderFrameHostImpl* render_frame_host) {
2546 #if defined(OS_ANDROID)
2547   int render_frame_id = render_frame_host->GetRoutingID();
2548   GetWebContentsAndroid()->DidStartNavigationTransitionForFrame(
2549       render_frame_id);
2550 #endif
2551 }
2552
2553 void WebContentsImpl::DidFailProvisionalLoadWithError(
2554     RenderFrameHostImpl* render_frame_host,
2555     const FrameHostMsg_DidFailProvisionalLoadWithError_Params& params) {
2556   GURL validated_url(params.url);
2557   FOR_EACH_OBSERVER(WebContentsObserver,
2558                     observers_,
2559                     DidFailProvisionalLoad(render_frame_host,
2560                                            validated_url,
2561                                            params.error_code,
2562                                            params.error_description));
2563
2564   FrameTreeNode* ftn = render_frame_host->frame_tree_node();
2565   BrowserAccessibilityManager* manager =
2566       ftn->current_frame_host()->browser_accessibility_manager();
2567   if (manager)
2568     manager->NavigationFailed();
2569 }
2570
2571 void WebContentsImpl::DidFailLoadWithError(
2572     RenderFrameHostImpl* render_frame_host,
2573     const GURL& url,
2574     int error_code,
2575     const base::string16& error_description) {
2576   FOR_EACH_OBSERVER(
2577       WebContentsObserver,
2578       observers_,
2579       DidFailLoad(render_frame_host, url, error_code, error_description));
2580 }
2581
2582 void WebContentsImpl::NotifyChangedNavigationState(
2583     InvalidateTypes changed_flags) {
2584   NotifyNavigationStateChanged(changed_flags);
2585 }
2586
2587 void WebContentsImpl::AboutToNavigateRenderFrame(
2588       RenderFrameHostImpl* old_host,
2589       RenderFrameHostImpl* new_host) {
2590   // Notify observers that we will navigate in this RenderFrame.
2591   FOR_EACH_OBSERVER(
2592       WebContentsObserver,
2593       observers_,
2594       AboutToNavigateRenderFrame(old_host, new_host));
2595 }
2596
2597 void WebContentsImpl::DidStartNavigationToPendingEntry(
2598       RenderFrameHostImpl* render_frame_host,
2599       const GURL& url,
2600       NavigationController::ReloadType reload_type) {
2601   // Notify observers about navigation.
2602   FOR_EACH_OBSERVER(
2603       WebContentsObserver,
2604       observers_,
2605       DidStartNavigationToPendingEntry(url, reload_type));
2606 }
2607
2608 void WebContentsImpl::RequestOpenURL(RenderFrameHostImpl* render_frame_host,
2609                                      const OpenURLParams& params) {
2610   // OpenURL can blow away the source RFH. Use the process/frame routing ID as a
2611   // weak pointer of sorts.
2612   const int32_t process_id = render_frame_host->GetProcess()->GetID();
2613   const int32_t frame_id = render_frame_host->GetRoutingID();
2614
2615   WebContents* new_contents = OpenURL(params);
2616
2617   if (new_contents && RenderFrameHost::FromID(process_id, frame_id)) {
2618     // Notify observers.
2619     FOR_EACH_OBSERVER(WebContentsObserver, observers_,
2620                       DidOpenRequestedURL(new_contents,
2621                                           render_frame_host,
2622                                           params.url,
2623                                           params.referrer,
2624                                           params.disposition,
2625                                           params.transition));
2626   }
2627 }
2628
2629 bool WebContentsImpl::ShouldPreserveAbortedURLs() {
2630   if (!delegate_)
2631     return false;
2632   return delegate_->ShouldPreserveAbortedURLs(this);
2633 }
2634
2635 void WebContentsImpl::DidCommitProvisionalLoad(
2636     RenderFrameHostImpl* render_frame_host,
2637     const GURL& url,
2638     ui::PageTransition transition_type) {
2639   // Notify observers about the commit of the provisional load.
2640   FOR_EACH_OBSERVER(WebContentsObserver,
2641                     observers_,
2642                     DidCommitProvisionalLoadForFrame(
2643                         render_frame_host, url, transition_type));
2644
2645   BrowserAccessibilityManager* manager =
2646       render_frame_host->browser_accessibility_manager();
2647   if (manager)
2648     manager->NavigationSucceeded();
2649 }
2650
2651 void WebContentsImpl::DidNavigateMainFramePreCommit(
2652     bool navigation_is_within_page) {
2653   // Ensure fullscreen mode is exited before committing the navigation to a
2654   // different page.  The next page will not start out assuming it is in
2655   // fullscreen mode.
2656   if (navigation_is_within_page) {
2657     // No page change?  Then, the renderer and browser can remain in fullscreen.
2658     return;
2659   }
2660   if (IsFullscreenForCurrentTab())
2661     ExitFullscreen();
2662   DCHECK(!IsFullscreenForCurrentTab());
2663 }
2664
2665 void WebContentsImpl::DidNavigateMainFramePostCommit(
2666     RenderFrameHostImpl* render_frame_host,
2667     const LoadCommittedDetails& details,
2668     const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
2669   if (details.is_navigation_to_different_page()) {
2670     // Clear the status bubble. This is a workaround for a bug where WebKit
2671     // doesn't let us know that the cursor left an element during a
2672     // transition (this is also why the mouse cursor remains as a hand after
2673     // clicking on a link); see bugs 1184641 and 980803. We don't want to
2674     // clear the bubble when a user navigates to a named anchor in the same
2675     // page.
2676     UpdateTargetURL(render_frame_host->GetRenderViewHost(), GURL());
2677
2678     RenderWidgetHostViewBase* rwhvb =
2679         static_cast<RenderWidgetHostViewBase*>(GetRenderWidgetHostView());
2680     if (rwhvb)
2681       rwhvb->OnDidNavigateMainFrameToNewPage();
2682   }
2683
2684   if (!details.is_in_page) {
2685     // Once the main frame is navigated, we're no longer considered to have
2686     // displayed insecure content.
2687     displayed_insecure_content_ = false;
2688     SSLManager::NotifySSLInternalStateChanged(
2689         GetController().GetBrowserContext());
2690   }
2691
2692   // Notify observers about navigation.
2693   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
2694                     DidNavigateMainFrame(details, params));
2695
2696   if (delegate_)
2697     delegate_->DidNavigateMainFramePostCommit(this);
2698   view_->SetOverscrollControllerEnabled(CanOverscrollContent());
2699 }
2700
2701 void WebContentsImpl::DidNavigateAnyFramePostCommit(
2702     RenderFrameHostImpl* render_frame_host,
2703     const LoadCommittedDetails& details,
2704     const FrameHostMsg_DidCommitProvisionalLoad_Params& params) {
2705   // Now that something has committed, we don't need to track whether the
2706   // initial page has been accessed.
2707   has_accessed_initial_document_ = false;
2708
2709   // If we navigate off the page, close all JavaScript dialogs.
2710   if (dialog_manager_ && !details.is_in_page)
2711     dialog_manager_->CancelActiveAndPendingDialogs(this);
2712
2713   // Notify observers about navigation.
2714   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
2715                     DidNavigateAnyFrame(render_frame_host, details, params));
2716 }
2717
2718 void WebContentsImpl::SetMainFrameMimeType(const std::string& mime_type) {
2719   contents_mime_type_ = mime_type;
2720 }
2721
2722 bool WebContentsImpl::CanOverscrollContent() const {
2723   // Disable overscroll when touch emulation is on. See crbug.com/369938.
2724   if (force_disable_overscroll_content_)
2725     return false;
2726
2727   if (delegate_)
2728     return delegate_->CanOverscrollContent();
2729
2730   return false;
2731 }
2732
2733 void WebContentsImpl::OnThemeColorChanged(SkColor theme_color) {
2734   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
2735                     DidChangeThemeColor(theme_color));
2736 }
2737
2738 void WebContentsImpl::OnDidLoadResourceFromMemoryCache(
2739     const GURL& url,
2740     const std::string& security_info,
2741     const std::string& http_method,
2742     const std::string& mime_type,
2743     ResourceType resource_type) {
2744
2745   // Send out a notification that we loaded a resource from our memory cache.
2746   int cert_id = 0;
2747   net::CertStatus cert_status = 0;
2748   int security_bits = -1;
2749   int connection_status = 0;
2750   SignedCertificateTimestampIDStatusList signed_certificate_timestamp_ids;
2751   DeserializeSecurityInfo(security_info, &cert_id, &cert_status,
2752                           &security_bits, &connection_status,
2753                           &signed_certificate_timestamp_ids);
2754   // TODO(alcutter,eranm): Pass signed_certificate_timestamp_ids into details
2755   LoadFromMemoryCacheDetails details(
2756       url, GetRenderProcessHost()->GetID(), cert_id, cert_status, http_method,
2757       mime_type, resource_type);
2758
2759   controller_.ssl_manager()->DidLoadFromMemoryCache(details);
2760
2761   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
2762                     DidLoadResourceFromMemoryCache(details));
2763
2764   if (url.is_valid() && url.SchemeIsHTTPOrHTTPS()) {
2765     scoped_refptr<net::URLRequestContextGetter> request_context(
2766         resource_type == RESOURCE_TYPE_MEDIA ?
2767             GetBrowserContext()->GetMediaRequestContextForRenderProcess(
2768                 GetRenderProcessHost()->GetID()) :
2769             GetBrowserContext()->GetRequestContextForRenderProcess(
2770                 GetRenderProcessHost()->GetID()));
2771     BrowserThread::PostTask(
2772         BrowserThread::IO,
2773         FROM_HERE,
2774         base::Bind(&NotifyCacheOnIO, request_context, url, http_method));
2775   }
2776 }
2777
2778 void WebContentsImpl::OnDidDisplayInsecureContent() {
2779   RecordAction(base::UserMetricsAction("SSL.DisplayedInsecureContent"));
2780   displayed_insecure_content_ = true;
2781   SSLManager::NotifySSLInternalStateChanged(
2782       GetController().GetBrowserContext());
2783 }
2784
2785 void WebContentsImpl::OnDidRunInsecureContent(
2786     const std::string& security_origin, const GURL& target_url) {
2787   LOG(WARNING) << security_origin << " ran insecure content from "
2788                << target_url.possibly_invalid_spec();
2789   RecordAction(base::UserMetricsAction("SSL.RanInsecureContent"));
2790   if (EndsWith(security_origin, kDotGoogleDotCom, false))
2791     RecordAction(base::UserMetricsAction("SSL.RanInsecureContentGoogle"));
2792   controller_.ssl_manager()->DidRunInsecureContent(security_origin);
2793   displayed_insecure_content_ = true;
2794   SSLManager::NotifySSLInternalStateChanged(
2795       GetController().GetBrowserContext());
2796 }
2797
2798 void WebContentsImpl::OnDocumentLoadedInFrame() {
2799   if (!HasValidFrameSource())
2800     return;
2801
2802   RenderFrameHostImpl* rfh =
2803       static_cast<RenderFrameHostImpl*>(render_frame_message_source_);
2804   FOR_EACH_OBSERVER(
2805       WebContentsObserver, observers_, DocumentLoadedInFrame(rfh));
2806 }
2807
2808 void WebContentsImpl::OnDidFinishLoad(const GURL& url) {
2809   if (!HasValidFrameSource())
2810     return;
2811
2812   GURL validated_url(url);
2813   RenderProcessHost* render_process_host =
2814       render_frame_message_source_->GetProcess();
2815   render_process_host->FilterURL(false, &validated_url);
2816
2817   RenderFrameHostImpl* rfh =
2818       static_cast<RenderFrameHostImpl*>(render_frame_message_source_);
2819   FOR_EACH_OBSERVER(
2820       WebContentsObserver, observers_, DidFinishLoad(rfh, validated_url));
2821 }
2822
2823 void WebContentsImpl::OnDidStartLoading(bool to_different_document) {
2824   if (!HasValidFrameSource())
2825     return;
2826
2827   RenderFrameHostImpl* rfh =
2828       static_cast<RenderFrameHostImpl*>(render_frame_message_source_);
2829   int64 render_frame_id = rfh->frame_tree_node()->frame_tree_node_id();
2830
2831   // Any main frame load to a new document should reset the load progress, since
2832   // it will replace the current page and any frames.
2833   if (to_different_document && !rfh->GetParent()) {
2834     ResetLoadProgressState();
2835     loading_frames_in_progress_ = 0;
2836     rfh->frame_tree_node()->set_is_loading(false);
2837   }
2838
2839   // It is possible to get multiple calls to OnDidStartLoading that don't have
2840   // corresponding calls to OnDidStopLoading:
2841   // - With "swappedout://" URLs, this happens when a RenderView gets swapped
2842   //   out for a cross-process navigation, and it turns into a placeholder for
2843   //   one being rendered in a different process.
2844   // - Also, there might be more than one RenderFrameHost sharing the same
2845   //   FrameTreeNode (and thus sharing its ID) each sending a start.
2846   // - But in the future, once clamy@ moves navigation network requests to the
2847   //   browser process, there's a good chance that callbacks about starting and
2848   //   stopping will all be handled by the browser. When that happens, there
2849   //   should no longer be a start/stop call imbalance. TODO(avi): When this
2850   //   future arrives, update this code to not allow this case.
2851   if (rfh->frame_tree_node()->is_loading())
2852     return;
2853
2854   DCHECK_GE(loading_frames_in_progress_, 0);
2855   if (loading_frames_in_progress_ == 0)
2856     DidStartLoading(rfh, to_different_document);
2857
2858   ++loading_frames_in_progress_;
2859   rfh->frame_tree_node()->set_is_loading(true);
2860
2861   // Notify the RenderFrameHostManager of the event.
2862   rfh->frame_tree_node()->render_manager()->OnDidStartLoading();
2863
2864   loading_progresses_[render_frame_id] = kMinimumLoadingProgress;
2865   SendLoadProgressChanged();
2866 }
2867
2868 void WebContentsImpl::OnDidStopLoading() {
2869   if (!HasValidFrameSource())
2870     return;
2871
2872   RenderFrameHostImpl* rfh =
2873       static_cast<RenderFrameHostImpl*>(render_frame_message_source_);
2874   int64 render_frame_id = rfh->frame_tree_node()->frame_tree_node_id();
2875   rfh->frame_tree_node()->set_is_loading(false);
2876
2877   if (loading_progresses_.find(render_frame_id) != loading_progresses_.end()) {
2878     // Load stopped while we were still tracking load.  Make sure we update
2879     // progress based on this frame's completion.
2880     loading_progresses_[render_frame_id] = 1.0;
2881     SendLoadProgressChanged();
2882     // Then we clean-up our states.
2883     if (loading_total_progress_ == 1.0)
2884       ResetLoadProgressState();
2885   }
2886
2887   // Notify the RenderFrameHostManager of the event.
2888   rfh->frame_tree_node()->render_manager()->OnDidStopLoading();
2889
2890   // TODO(japhet): This should be a DCHECK, but the pdf plugin sometimes
2891   // calls DidStopLoading() without a matching DidStartLoading().
2892   if (loading_frames_in_progress_ == 0)
2893     return;
2894   --loading_frames_in_progress_;
2895   if (loading_frames_in_progress_ == 0)
2896     DidStopLoading(rfh);
2897 }
2898
2899 void WebContentsImpl::OnDidChangeLoadProgress(double load_progress) {
2900   if (!HasValidFrameSource())
2901     return;
2902
2903   RenderFrameHostImpl* rfh =
2904       static_cast<RenderFrameHostImpl*>(render_frame_message_source_);
2905   int64 render_frame_id = rfh->frame_tree_node()->frame_tree_node_id();
2906
2907   loading_progresses_[render_frame_id] = load_progress;
2908
2909   // We notify progress change immediately for the first and last updates.
2910   // Also, since the message loop may be pretty busy when a page is loaded, it
2911   // might not execute a posted task in a timely manner so we make sure to
2912   // immediately send progress report if enough time has passed.
2913   base::TimeDelta min_delay =
2914       base::TimeDelta::FromMilliseconds(kMinimumDelayBetweenLoadingUpdatesMS);
2915   if (load_progress == 1.0 || loading_last_progress_update_.is_null() ||
2916       base::TimeTicks::Now() - loading_last_progress_update_ > min_delay) {
2917     // If there is a pending task to send progress, it is now obsolete.
2918     loading_weak_factory_.InvalidateWeakPtrs();
2919     SendLoadProgressChanged();
2920     if (loading_total_progress_ == 1.0)
2921       ResetLoadProgressState();
2922     return;
2923   }
2924
2925   if (loading_weak_factory_.HasWeakPtrs())
2926     return;
2927
2928   base::MessageLoop::current()->PostDelayedTask(
2929       FROM_HERE,
2930       base::Bind(&WebContentsImpl::SendLoadProgressChanged,
2931                  loading_weak_factory_.GetWeakPtr()),
2932       min_delay);
2933 }
2934
2935 void WebContentsImpl::OnGoToEntryAtOffset(int offset) {
2936   if (!delegate_ || delegate_->OnGoToEntryOffset(offset))
2937     controller_.GoToOffset(offset);
2938 }
2939
2940 void WebContentsImpl::OnUpdateZoomLimits(int minimum_percent,
2941                                          int maximum_percent) {
2942   minimum_zoom_percent_ = minimum_percent;
2943   maximum_zoom_percent_ = maximum_percent;
2944 }
2945
2946 void WebContentsImpl::OnEnumerateDirectory(int request_id,
2947                                            const base::FilePath& path) {
2948   if (!delegate_)
2949     return;
2950
2951   ChildProcessSecurityPolicyImpl* policy =
2952       ChildProcessSecurityPolicyImpl::GetInstance();
2953   if (policy->CanReadFile(GetRenderProcessHost()->GetID(), path))
2954     delegate_->EnumerateDirectory(this, request_id, path);
2955 }
2956
2957 void WebContentsImpl::OnRegisterProtocolHandler(const std::string& protocol,
2958                                                 const GURL& url,
2959                                                 const base::string16& title,
2960                                                 bool user_gesture) {
2961   if (!delegate_)
2962     return;
2963
2964   ChildProcessSecurityPolicyImpl* policy =
2965       ChildProcessSecurityPolicyImpl::GetInstance();
2966   if (policy->IsPseudoScheme(protocol))
2967     return;
2968
2969   delegate_->RegisterProtocolHandler(this, protocol, url, user_gesture);
2970 }
2971
2972 void WebContentsImpl::OnUnregisterProtocolHandler(const std::string& protocol,
2973                                                   const GURL& url,
2974                                                   bool user_gesture) {
2975   if (!delegate_)
2976     return;
2977
2978   ChildProcessSecurityPolicyImpl* policy =
2979       ChildProcessSecurityPolicyImpl::GetInstance();
2980   if (policy->IsPseudoScheme(protocol))
2981     return;
2982
2983   delegate_->UnregisterProtocolHandler(this, protocol, url, user_gesture);
2984 }
2985
2986 void WebContentsImpl::OnFindReply(int request_id,
2987                                   int number_of_matches,
2988                                   const gfx::Rect& selection_rect,
2989                                   int active_match_ordinal,
2990                                   bool final_update) {
2991   if (delegate_) {
2992     delegate_->FindReply(this, request_id, number_of_matches, selection_rect,
2993                          active_match_ordinal, final_update);
2994   }
2995 }
2996
2997 #if defined(OS_ANDROID)
2998 void WebContentsImpl::OnFindMatchRectsReply(
2999     int version,
3000     const std::vector<gfx::RectF>& rects,
3001     const gfx::RectF& active_rect) {
3002   if (delegate_)
3003     delegate_->FindMatchRectsReply(this, version, rects, active_rect);
3004 }
3005
3006 void WebContentsImpl::OnOpenDateTimeDialog(
3007     const ViewHostMsg_DateTimeDialogValue_Params& value) {
3008   date_time_chooser_->ShowDialog(GetTopLevelNativeWindow(),
3009                                  GetRenderViewHost(),
3010                                  value.dialog_type,
3011                                  value.dialog_value,
3012                                  value.minimum,
3013                                  value.maximum,
3014                                  value.step,
3015                                  value.suggestions);
3016 }
3017 #endif
3018
3019 void WebContentsImpl::OnDomOperationResponse(const std::string& json_string,
3020                                              int automation_id) {
3021   DomOperationNotificationDetails details(json_string, automation_id);
3022   NotificationService::current()->Notify(
3023       NOTIFICATION_DOM_OPERATION_RESPONSE,
3024       Source<WebContents>(this),
3025       Details<DomOperationNotificationDetails>(&details));
3026 }
3027
3028 void WebContentsImpl::OnAppCacheAccessed(const GURL& manifest_url,
3029                                          bool blocked_by_policy) {
3030   // Notify observers about navigation.
3031   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
3032                     AppCacheAccessed(manifest_url, blocked_by_policy));
3033 }
3034
3035 void WebContentsImpl::OnOpenColorChooser(
3036     int color_chooser_id,
3037     SkColor color,
3038     const std::vector<ColorSuggestion>& suggestions) {
3039   if (!HasValidFrameSource())
3040     return;
3041
3042   ColorChooser* new_color_chooser = delegate_ ?
3043       delegate_->OpenColorChooser(this, color, suggestions) :
3044       NULL;
3045   if (!new_color_chooser)
3046     return;
3047   if (color_chooser_info_.get())
3048     color_chooser_info_->chooser->End();
3049
3050   color_chooser_info_.reset(new ColorChooserInfo(
3051       render_frame_message_source_->GetProcess()->GetID(),
3052       render_frame_message_source_->GetRoutingID(),
3053       new_color_chooser,
3054       color_chooser_id));
3055 }
3056
3057 void WebContentsImpl::OnEndColorChooser(int color_chooser_id) {
3058   if (color_chooser_info_ &&
3059       color_chooser_id == color_chooser_info_->identifier)
3060     color_chooser_info_->chooser->End();
3061 }
3062
3063 void WebContentsImpl::OnSetSelectedColorInColorChooser(int color_chooser_id,
3064                                                        SkColor color) {
3065   if (color_chooser_info_ &&
3066       color_chooser_id == color_chooser_info_->identifier)
3067     color_chooser_info_->chooser->SetSelectedColor(color);
3068 }
3069
3070 // This exists for render views that don't have a WebUI, but do have WebUI
3071 // bindings enabled.
3072 void WebContentsImpl::OnWebUISend(const GURL& source_url,
3073                                   const std::string& name,
3074                                   const base::ListValue& args) {
3075   if (delegate_)
3076     delegate_->WebUISend(this, source_url, name, args);
3077 }
3078
3079 #if defined(ENABLE_PLUGINS)
3080 void WebContentsImpl::OnPepperPluginHung(int plugin_child_id,
3081                                          const base::FilePath& path,
3082                                          bool is_hung) {
3083   UMA_HISTOGRAM_COUNTS("Pepper.PluginHung", 1);
3084
3085   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
3086                     PluginHungStatusChanged(plugin_child_id, path, is_hung));
3087 }
3088
3089 void WebContentsImpl::OnPluginCrashed(const base::FilePath& plugin_path,
3090                                       base::ProcessId plugin_pid) {
3091   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
3092                     PluginCrashed(plugin_path, plugin_pid));
3093 }
3094
3095 void WebContentsImpl::OnRequestPpapiBrokerPermission(
3096     int routing_id,
3097     const GURL& url,
3098     const base::FilePath& plugin_path) {
3099   if (!delegate_) {
3100     OnPpapiBrokerPermissionResult(routing_id, false);
3101     return;
3102   }
3103
3104   if (!delegate_->RequestPpapiBrokerPermission(
3105       this, url, plugin_path,
3106       base::Bind(&WebContentsImpl::OnPpapiBrokerPermissionResult,
3107                  base::Unretained(this), routing_id))) {
3108     NOTIMPLEMENTED();
3109     OnPpapiBrokerPermissionResult(routing_id, false);
3110   }
3111 }
3112
3113 void WebContentsImpl::OnPpapiBrokerPermissionResult(int routing_id,
3114                                                     bool result) {
3115   Send(new ViewMsg_PpapiBrokerPermissionResult(routing_id, result));
3116 }
3117
3118 void WebContentsImpl::OnBrowserPluginMessage(const IPC::Message& message) {
3119   // This creates a BrowserPluginEmbedder, which handles all the BrowserPlugin
3120   // specific messages for this WebContents. This means that any message from
3121   // a BrowserPlugin prior to this will be ignored.
3122   // For more info, see comment above classes BrowserPluginEmbedder and
3123   // BrowserPluginGuest.
3124   CHECK(!browser_plugin_embedder_.get());
3125   browser_plugin_embedder_.reset(BrowserPluginEmbedder::Create(this));
3126   browser_plugin_embedder_->OnMessageReceived(message);
3127 }
3128 #endif  // defined(ENABLE_PLUGINS)
3129
3130 void WebContentsImpl::OnDidDownloadImage(
3131     int id,
3132     int http_status_code,
3133     const GURL& image_url,
3134     const std::vector<SkBitmap>& bitmaps,
3135     const std::vector<gfx::Size>& original_bitmap_sizes) {
3136   if (bitmaps.size() != original_bitmap_sizes.size())
3137     return;
3138
3139   ImageDownloadMap::iterator iter = image_download_map_.find(id);
3140   if (iter == image_download_map_.end()) {
3141     // Currently WebContents notifies us of ANY downloads so that it is
3142     // possible to get here.
3143     return;
3144   }
3145   if (!iter->second.is_null()) {
3146     iter->second.Run(
3147         id, http_status_code, image_url, bitmaps, original_bitmap_sizes);
3148   }
3149   image_download_map_.erase(id);
3150 }
3151
3152 void WebContentsImpl::OnUpdateFaviconURL(
3153     const std::vector<FaviconURL>& candidates) {
3154   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
3155                     DidUpdateFaviconURL(candidates));
3156 }
3157
3158 void WebContentsImpl::CreateAudioPowerSaveBlocker() {
3159   // ChromeOS has its own way of handling power save blocks for media.
3160 #if !defined(OS_CHROMEOS)
3161   DCHECK(!audio_power_save_blocker_);
3162   audio_power_save_blocker_ = PowerSaveBlocker::Create(
3163       PowerSaveBlocker::kPowerSaveBlockPreventAppSuspension, "Playing Audio");
3164 #endif
3165 }
3166
3167 void WebContentsImpl::CreateVideoPowerSaveBlocker() {
3168   // ChromeOS has its own way of handling power save blocks for media.
3169 #if !defined(OS_CHROMEOS)
3170   DCHECK(!video_power_save_blocker_);
3171   DCHECK(!active_video_players_.empty());
3172   video_power_save_blocker_ = PowerSaveBlocker::Create(
3173       PowerSaveBlocker::kPowerSaveBlockPreventDisplaySleep, "Playing Video");
3174 #if defined(OS_ANDROID)
3175   static_cast<PowerSaveBlockerImpl*>(video_power_save_blocker_.get())
3176       ->InitDisplaySleepBlocker(GetView()->GetNativeView());
3177 #endif
3178 #endif
3179 }
3180
3181 void WebContentsImpl::MaybeReleasePowerSaveBlockers() {
3182   // If there are no more audio players and we don't have audio stream
3183   // monitoring, release the audio power save blocker here instead of during
3184   // NotifyNavigationStateChanged().
3185   if (active_audio_players_.empty() &&
3186       !AudioStreamMonitor::monitoring_available()) {
3187     audio_power_save_blocker_.reset();
3188   }
3189
3190   // If there are no more video players, clear the video power save blocker.
3191   if (active_video_players_.empty())
3192     video_power_save_blocker_.reset();
3193 }
3194
3195 void WebContentsImpl::OnMediaPlayingNotification(int64 player_cookie,
3196                                                  bool has_video,
3197                                                  bool has_audio,
3198                                                  bool is_remote) {
3199   // Ignore the videos playing remotely and don't hold the wake lock for the
3200   // screen.
3201   if (is_remote) return;
3202
3203   if (has_audio) {
3204     AddMediaPlayerEntry(player_cookie, &active_audio_players_);
3205
3206     // If we don't have audio stream monitoring, allocate the audio power save
3207     // blocker here instead of during NotifyNavigationStateChanged().
3208     if (!audio_power_save_blocker_ &&
3209         !AudioStreamMonitor::monitoring_available()) {
3210       CreateAudioPowerSaveBlocker();
3211     }
3212   }
3213
3214   if (has_video) {
3215     AddMediaPlayerEntry(player_cookie, &active_video_players_);
3216
3217     // If we're not hidden and have just created a player, create a blocker.
3218     if (!video_power_save_blocker_ && !IsHidden())
3219       CreateVideoPowerSaveBlocker();
3220   }
3221 }
3222
3223 void WebContentsImpl::OnMediaPausedNotification(int64 player_cookie) {
3224   RemoveMediaPlayerEntry(player_cookie, &active_audio_players_);
3225   RemoveMediaPlayerEntry(player_cookie, &active_video_players_);
3226   MaybeReleasePowerSaveBlockers();
3227 }
3228
3229 void WebContentsImpl::OnFirstVisuallyNonEmptyPaint() {
3230   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
3231                     DidFirstVisuallyNonEmptyPaint());
3232 }
3233
3234 void WebContentsImpl::DidChangeVisibleSSLState() {
3235   if (delegate_)
3236     delegate_->VisibleSSLStateChanged(this);
3237 }
3238
3239 void WebContentsImpl::NotifyBeforeFormRepostWarningShow() {
3240   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
3241                     BeforeFormRepostWarningShow());
3242 }
3243
3244 void WebContentsImpl::ActivateAndShowRepostFormWarningDialog() {
3245   Activate();
3246   if (delegate_)
3247     delegate_->ShowRepostFormWarningDialog(this);
3248 }
3249
3250 bool WebContentsImpl::HasAccessedInitialDocument() {
3251   return has_accessed_initial_document_;
3252 }
3253
3254 // Notifies the RenderWidgetHost instance about the fact that the page is
3255 // loading, or done loading.
3256 void WebContentsImpl::SetIsLoading(RenderViewHost* render_view_host,
3257                                    bool is_loading,
3258                                    bool to_different_document,
3259                                    LoadNotificationDetails* details) {
3260   if (is_loading == is_loading_)
3261     return;
3262
3263   if (!is_loading) {
3264     load_state_ = net::LoadStateWithParam(net::LOAD_STATE_IDLE,
3265                                           base::string16());
3266     load_state_host_.clear();
3267     upload_size_ = 0;
3268     upload_position_ = 0;
3269   }
3270
3271   GetRenderManager()->SetIsLoading(is_loading);
3272
3273   is_loading_ = is_loading;
3274   waiting_for_response_ = is_loading;
3275   is_load_to_different_document_ = to_different_document;
3276
3277   if (delegate_)
3278     delegate_->LoadingStateChanged(this, to_different_document);
3279   NotifyNavigationStateChanged(INVALIDATE_TYPE_LOAD);
3280
3281   std::string url = (details ? details->url.possibly_invalid_spec() : "NULL");
3282   if (is_loading) {
3283     TRACE_EVENT_ASYNC_BEGIN1("browser,navigation", "WebContentsImpl Loading",
3284                              this, "URL", url);
3285     FOR_EACH_OBSERVER(WebContentsObserver, observers_,
3286                       DidStartLoading(render_view_host));
3287   } else {
3288     TRACE_EVENT_ASYNC_END1("browser,navigation", "WebContentsImpl Loading",
3289                            this, "URL", url);
3290     FOR_EACH_OBSERVER(WebContentsObserver, observers_,
3291                       DidStopLoading(render_view_host));
3292   }
3293
3294   // TODO(avi): Remove. http://crbug.com/170921
3295   int type = is_loading ? NOTIFICATION_LOAD_START : NOTIFICATION_LOAD_STOP;
3296   NotificationDetails det = NotificationService::NoDetails();
3297   if (details)
3298       det = Details<LoadNotificationDetails>(details);
3299   NotificationService::current()->Notify(
3300       type, Source<NavigationController>(&controller_), det);
3301 }
3302
3303 void WebContentsImpl::MoveRangeSelectionExtent(const gfx::Point& extent) {
3304   RenderFrameHost* focused_frame = GetFocusedFrame();
3305   if (!focused_frame)
3306     return;
3307
3308   focused_frame->Send(new InputMsg_MoveRangeSelectionExtent(
3309       focused_frame->GetRoutingID(), extent));
3310 }
3311
3312 void WebContentsImpl::SelectRange(const gfx::Point& base,
3313                                   const gfx::Point& extent) {
3314   RenderFrameHost* focused_frame = GetFocusedFrame();
3315   if (!focused_frame)
3316     return;
3317
3318   focused_frame->Send(
3319       new InputMsg_SelectRange(focused_frame->GetRoutingID(), base, extent));
3320 }
3321
3322 void WebContentsImpl::UpdateMaxPageIDIfNecessary(RenderViewHost* rvh) {
3323   // If we are creating a RVH for a restored controller, then we need to make
3324   // sure the RenderView starts with a next_page_id_ larger than the number
3325   // of restored entries.  This must be called before the RenderView starts
3326   // navigating (to avoid a race between the browser updating max_page_id and
3327   // the renderer updating next_page_id_).  Because of this, we only call this
3328   // from CreateRenderView and allow that to notify the RenderView for us.
3329   int max_restored_page_id = controller_.GetMaxRestoredPageID();
3330   if (max_restored_page_id >
3331       GetMaxPageIDForSiteInstance(rvh->GetSiteInstance()))
3332     UpdateMaxPageIDForSiteInstance(rvh->GetSiteInstance(),
3333                                    max_restored_page_id);
3334 }
3335
3336 bool WebContentsImpl::UpdateTitleForEntry(NavigationEntryImpl* entry,
3337                                           const base::string16& title) {
3338   // For file URLs without a title, use the pathname instead. In the case of a
3339   // synthesized title, we don't want the update to count toward the "one set
3340   // per page of the title to history."
3341   base::string16 final_title;
3342   bool explicit_set;
3343   if (entry && entry->GetURL().SchemeIsFile() && title.empty()) {
3344     final_title = base::UTF8ToUTF16(entry->GetURL().ExtractFileName());
3345     explicit_set = false;  // Don't count synthetic titles toward the set limit.
3346   } else {
3347     base::TrimWhitespace(title, base::TRIM_ALL, &final_title);
3348     explicit_set = true;
3349   }
3350
3351   // If a page is created via window.open and never navigated,
3352   // there will be no navigation entry. In this situation,
3353   // |page_title_when_no_navigation_entry_| will be used for page title.
3354   if (entry) {
3355     if (final_title == entry->GetTitle())
3356       return false;  // Nothing changed, don't bother.
3357
3358     entry->SetTitle(final_title);
3359   } else {
3360     if (page_title_when_no_navigation_entry_ == final_title)
3361       return false;  // Nothing changed, don't bother.
3362
3363     page_title_when_no_navigation_entry_ = final_title;
3364   }
3365
3366   // Lastly, set the title for the view.
3367   view_->SetPageTitle(final_title);
3368
3369   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
3370                     TitleWasSet(entry, explicit_set));
3371
3372   // TODO(avi): Remove. http://crbug.com/170921
3373   std::pair<NavigationEntry*, bool> details =
3374       std::make_pair(entry, explicit_set);
3375   NotificationService::current()->Notify(
3376       NOTIFICATION_WEB_CONTENTS_TITLE_UPDATED,
3377       Source<WebContents>(this),
3378       Details<std::pair<NavigationEntry*, bool> >(&details));
3379
3380   return true;
3381 }
3382
3383 void WebContentsImpl::SendLoadProgressChanged() {
3384   loading_last_progress_update_ = base::TimeTicks::Now();
3385   double progress = 0.0;
3386   int frame_count = 0;
3387
3388   for (LoadingProgressMap::iterator it = loading_progresses_.begin();
3389        it != loading_progresses_.end();
3390        ++it) {
3391     progress += it->second;
3392     ++frame_count;
3393   }
3394   if (frame_count == 0)
3395     return;
3396   progress /= frame_count;
3397   DCHECK(progress <= 1.0);
3398
3399   if (progress <= loading_total_progress_)
3400     return;
3401   loading_total_progress_ = progress;
3402
3403   if (delegate_)
3404     delegate_->LoadProgressChanged(this, progress);
3405 }
3406
3407 void WebContentsImpl::ResetLoadProgressState() {
3408   loading_progresses_.clear();
3409   loading_total_progress_ = 0.0;
3410   loading_weak_factory_.InvalidateWeakPtrs();
3411   loading_last_progress_update_ = base::TimeTicks();
3412 }
3413
3414 void WebContentsImpl::NotifyViewSwapped(RenderViewHost* old_host,
3415                                         RenderViewHost* new_host) {
3416   // After sending out a swap notification, we need to send a disconnect
3417   // notification so that clients that pick up a pointer to |this| can NULL the
3418   // pointer.  See Bug 1230284.
3419   notify_disconnection_ = true;
3420   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
3421                     RenderViewHostChanged(old_host, new_host));
3422
3423   // TODO(avi): Remove. http://crbug.com/170921
3424   std::pair<RenderViewHost*, RenderViewHost*> details =
3425       std::make_pair(old_host, new_host);
3426   NotificationService::current()->Notify(
3427       NOTIFICATION_RENDER_VIEW_HOST_CHANGED,
3428       Source<WebContents>(this),
3429       Details<std::pair<RenderViewHost*, RenderViewHost*> >(&details));
3430
3431   // Ensure that the associated embedder gets cleared after a RenderViewHost
3432   // gets swapped, so we don't reuse the same embedder next time a
3433   // RenderViewHost is attached to this WebContents.
3434   RemoveBrowserPluginEmbedder();
3435 }
3436
3437 void WebContentsImpl::NotifyFrameSwapped(RenderFrameHost* old_host,
3438                                          RenderFrameHost* new_host) {
3439   FOR_EACH_OBSERVER(WebContentsObserver,
3440                     observers_,
3441                     RenderFrameHostChanged(old_host, new_host));
3442 }
3443
3444 // TODO(avi): Remove this entire function because this notification is already
3445 // covered by two observer functions. http://crbug.com/170921
3446 void WebContentsImpl::NotifyDisconnected() {
3447   if (!notify_disconnection_)
3448     return;
3449
3450   notify_disconnection_ = false;
3451   NotificationService::current()->Notify(
3452       NOTIFICATION_WEB_CONTENTS_DISCONNECTED,
3453       Source<WebContents>(this),
3454       NotificationService::NoDetails());
3455 }
3456
3457 void WebContentsImpl::NotifyNavigationEntryCommitted(
3458     const LoadCommittedDetails& load_details) {
3459   FOR_EACH_OBSERVER(
3460       WebContentsObserver, observers_, NavigationEntryCommitted(load_details));
3461 }
3462
3463 bool WebContentsImpl::OnMessageReceived(RenderFrameHost* render_frame_host,
3464                                         const IPC::Message& message) {
3465   return OnMessageReceived(NULL, render_frame_host, message);
3466 }
3467
3468 const GURL& WebContentsImpl::GetMainFrameLastCommittedURL() const {
3469   return GetLastCommittedURL();
3470 }
3471
3472 void WebContentsImpl::RenderFrameCreated(RenderFrameHost* render_frame_host) {
3473   // Note this is only for subframes, the notification for the main frame
3474   // happens in RenderViewCreated.
3475   FOR_EACH_OBSERVER(WebContentsObserver,
3476                     observers_,
3477                     RenderFrameCreated(render_frame_host));
3478   SetAccessibilityModeOnFrame(accessibility_mode_, render_frame_host);
3479 }
3480
3481 void WebContentsImpl::RenderFrameDeleted(RenderFrameHost* render_frame_host) {
3482   ClearPowerSaveBlockers(render_frame_host);
3483   FOR_EACH_OBSERVER(WebContentsObserver,
3484                     observers_,
3485                     RenderFrameDeleted(render_frame_host));
3486 }
3487
3488 void WebContentsImpl::WorkerCrashed(RenderFrameHost* render_frame_host) {
3489   if (delegate_)
3490     delegate_->WorkerCrashed(this);
3491 }
3492
3493 void WebContentsImpl::ShowContextMenu(RenderFrameHost* render_frame_host,
3494                                       const ContextMenuParams& params) {
3495   ContextMenuParams context_menu_params(params);
3496   // Allow WebContentsDelegates to handle the context menu operation first.
3497   if (GetBrowserPluginGuest()) {
3498     WebContentsViewGuest* view_guest =
3499         static_cast<WebContentsViewGuest*>(GetView());
3500     context_menu_params = view_guest->ConvertContextMenuParams(params);
3501   }
3502   if (delegate_ && delegate_->HandleContextMenu(context_menu_params))
3503     return;
3504
3505   render_view_host_delegate_view_->ShowContextMenu(render_frame_host,
3506                                                    context_menu_params);
3507 }
3508
3509 void WebContentsImpl::RunJavaScriptMessage(
3510     RenderFrameHost* render_frame_host,
3511     const base::string16& message,
3512     const base::string16& default_prompt,
3513     const GURL& frame_url,
3514     JavaScriptMessageType javascript_message_type,
3515     IPC::Message* reply_msg) {
3516   // Suppress JavaScript dialogs when requested. Also suppress messages when
3517   // showing an interstitial as it's shown over the previous page and we don't
3518   // want the hidden page's dialogs to interfere with the interstitial.
3519   bool suppress_this_message =
3520       static_cast<RenderFrameHostImpl*>(render_frame_host)->is_swapped_out() ||
3521       ShowingInterstitialPage() || !delegate_ ||
3522       delegate_->ShouldSuppressDialogs(this) ||
3523       !delegate_->GetJavaScriptDialogManager(this);
3524
3525   if (!suppress_this_message) {
3526     std::string accept_lang = GetContentClient()->browser()->
3527       GetAcceptLangs(GetBrowserContext());
3528     dialog_manager_ = delegate_->GetJavaScriptDialogManager(this);
3529     dialog_manager_->RunJavaScriptDialog(
3530         this,
3531         frame_url.GetOrigin(),
3532         accept_lang,
3533         javascript_message_type,
3534         message,
3535         default_prompt,
3536         base::Bind(&WebContentsImpl::OnDialogClosed,
3537                    base::Unretained(this),
3538                    render_frame_host->GetProcess()->GetID(),
3539                    render_frame_host->GetRoutingID(),
3540                    reply_msg,
3541                    false),
3542         &suppress_this_message);
3543   }
3544
3545   if (suppress_this_message) {
3546     // If we are suppressing messages, just reply as if the user immediately
3547     // pressed "Cancel", passing true to |dialog_was_suppressed|.
3548     OnDialogClosed(render_frame_host->GetProcess()->GetID(),
3549                    render_frame_host->GetRoutingID(), reply_msg,
3550                    true, false, base::string16());
3551   }
3552
3553   // OnDialogClosed (two lines up) may have caused deletion of this object (see
3554   // http://crbug.com/288961 ). The only safe thing to do here is return.
3555 }
3556
3557 void WebContentsImpl::RunBeforeUnloadConfirm(
3558     RenderFrameHost* render_frame_host,
3559     const base::string16& message,
3560     bool is_reload,
3561     IPC::Message* reply_msg) {
3562   RenderFrameHostImpl* rfhi =
3563       static_cast<RenderFrameHostImpl*>(render_frame_host);
3564   if (delegate_)
3565     delegate_->WillRunBeforeUnloadConfirm();
3566
3567   bool suppress_this_message =
3568       rfhi->rfh_state() != RenderFrameHostImpl::STATE_DEFAULT || !delegate_ ||
3569       delegate_->ShouldSuppressDialogs(this) ||
3570       !delegate_->GetJavaScriptDialogManager(this);
3571   if (suppress_this_message) {
3572     rfhi->JavaScriptDialogClosed(reply_msg, true, base::string16(), true);
3573     return;
3574   }
3575
3576   is_showing_before_unload_dialog_ = true;
3577   dialog_manager_ = delegate_->GetJavaScriptDialogManager(this);
3578   dialog_manager_->RunBeforeUnloadDialog(
3579       this, message, is_reload,
3580       base::Bind(&WebContentsImpl::OnDialogClosed, base::Unretained(this),
3581                  render_frame_host->GetProcess()->GetID(),
3582                  render_frame_host->GetRoutingID(), reply_msg,
3583                  false));
3584 }
3585
3586 WebContents* WebContentsImpl::GetAsWebContents() {
3587   return this;
3588 }
3589
3590 bool WebContentsImpl::IsNeverVisible() {
3591   if (!delegate_)
3592     return false;
3593   return delegate_->IsNeverVisible(this);
3594 }
3595
3596 #if defined(OS_WIN)
3597 gfx::NativeViewAccessible WebContentsImpl::GetParentNativeViewAccessible() {
3598   return accessible_parent_;
3599 }
3600 #endif
3601
3602 RenderViewHostDelegateView* WebContentsImpl::GetDelegateView() {
3603   return render_view_host_delegate_view_;
3604 }
3605
3606 RendererPreferences WebContentsImpl::GetRendererPrefs(
3607     BrowserContext* browser_context) const {
3608   return renderer_preferences_;
3609 }
3610
3611 gfx::Rect WebContentsImpl::GetRootWindowResizerRect() const {
3612   if (delegate_)
3613     return delegate_->GetRootWindowResizerRect();
3614   return gfx::Rect();
3615 }
3616
3617 void WebContentsImpl::RemoveBrowserPluginEmbedder() {
3618   if (browser_plugin_embedder_)
3619     browser_plugin_embedder_.reset();
3620 }
3621
3622 void WebContentsImpl::RenderViewCreated(RenderViewHost* render_view_host) {
3623   // Don't send notifications if we are just creating a swapped-out RVH for
3624   // the opener chain.  These won't be used for view-source or WebUI, so it's
3625   // ok to return early.
3626   if (!static_cast<RenderViewHostImpl*>(render_view_host)->is_active())
3627     return;
3628
3629   if (delegate_)
3630     view_->SetOverscrollControllerEnabled(CanOverscrollContent());
3631
3632   NotificationService::current()->Notify(
3633       NOTIFICATION_WEB_CONTENTS_RENDER_VIEW_HOST_CREATED,
3634       Source<WebContents>(this),
3635       Details<RenderViewHost>(render_view_host));
3636
3637   // When we're creating views, we're still doing initial setup, so we always
3638   // use the pending Web UI rather than any possibly existing committed one.
3639   if (GetRenderManager()->pending_web_ui())
3640     GetRenderManager()->pending_web_ui()->RenderViewCreated(render_view_host);
3641
3642   NavigationEntry* entry = controller_.GetPendingEntry();
3643   if (entry && entry->IsViewSourceMode()) {
3644     // Put the renderer in view source mode.
3645     render_view_host->Send(
3646         new ViewMsg_EnableViewSourceMode(render_view_host->GetRoutingID()));
3647   }
3648
3649   view_->RenderViewCreated(render_view_host);
3650
3651   FOR_EACH_OBSERVER(
3652       WebContentsObserver, observers_, RenderViewCreated(render_view_host));
3653
3654   // We tell the observers now instead of when the main RenderFrameHostImpl is
3655   // constructed because otherwise it would be too early (i.e. IPCs sent to the
3656   // frame would be dropped because it's not created yet).
3657   RenderFrameHost* main_frame = render_view_host->GetMainFrame();
3658   FOR_EACH_OBSERVER(
3659       WebContentsObserver, observers_, RenderFrameCreated(main_frame));
3660   SetAccessibilityModeOnFrame(accessibility_mode_, main_frame);
3661
3662   DevToolsManager::GetInstance()->RenderViewCreated(this, render_view_host);
3663 }
3664
3665 void WebContentsImpl::RenderViewReady(RenderViewHost* rvh) {
3666   if (rvh != GetRenderViewHost()) {
3667     // Don't notify the world, since this came from a renderer in the
3668     // background.
3669     return;
3670   }
3671
3672   notify_disconnection_ = true;
3673   // TODO(avi): Remove. http://crbug.com/170921
3674   NotificationService::current()->Notify(
3675       NOTIFICATION_WEB_CONTENTS_CONNECTED,
3676       Source<WebContents>(this),
3677       NotificationService::NoDetails());
3678
3679   bool was_crashed = IsCrashed();
3680   SetIsCrashed(base::TERMINATION_STATUS_STILL_RUNNING, 0);
3681
3682   // Restore the focus to the tab (otherwise the focus will be on the top
3683   // window).
3684   if (was_crashed && !FocusLocationBarByDefault() &&
3685       (!delegate_ || delegate_->ShouldFocusPageAfterCrash())) {
3686     view_->Focus();
3687   }
3688
3689   FOR_EACH_OBSERVER(WebContentsObserver, observers_, RenderViewReady());
3690 }
3691
3692 void WebContentsImpl::RenderViewTerminated(RenderViewHost* rvh,
3693                                            base::TerminationStatus status,
3694                                            int error_code) {
3695   // TODO(nasko): This isn't ideal; the termination process should be handled by
3696   // RenderFrameDeleted().  See http://crbug.com/455943.
3697   ClearPowerSaveBlockers(rvh->GetMainFrame());
3698
3699   if (rvh != GetRenderViewHost()) {
3700     // The pending page's RenderViewHost is gone.
3701     return;
3702   }
3703
3704   // Ensure fullscreen mode is exited in the |delegate_| since a crashed
3705   // renderer may not have made a clean exit.
3706   if (IsFullscreenForCurrentTab())
3707     ExitFullscreenMode();
3708
3709   // Cancel any visible dialogs so they are not left dangling over the sad tab.
3710   if (dialog_manager_)
3711     dialog_manager_->CancelActiveAndPendingDialogs(this);
3712
3713   if (delegate_)
3714     delegate_->HideValidationMessage(this);
3715
3716   SetIsLoading(rvh, false, true, NULL);
3717   NotifyDisconnected();
3718   SetIsCrashed(status, error_code);
3719
3720   // Reset the loading progress. TODO(avi): What does it mean to have a
3721   // "renderer crash" when there is more than one renderer process serving a
3722   // webpage? Once this function is called at a more granular frame level, we
3723   // probably will need to more granularly reset the state here.
3724   ResetLoadProgressState();
3725   loading_frames_in_progress_ = 0;
3726
3727   FOR_EACH_OBSERVER(WebContentsObserver,
3728                     observers_,
3729                     RenderProcessGone(GetCrashedStatus()));
3730 }
3731
3732 void WebContentsImpl::RenderViewDeleted(RenderViewHost* rvh) {
3733   FOR_EACH_OBSERVER(WebContentsObserver, observers_, RenderViewDeleted(rvh));
3734 }
3735
3736 void WebContentsImpl::UpdateState(RenderViewHost* rvh,
3737                                   int32 page_id,
3738                                   const PageState& page_state) {
3739   // Ensure that this state update comes from a RenderViewHost that belongs to
3740   // this WebContents.
3741   // TODO(nasko): This should go through RenderFrameHost.
3742   // TODO(creis): We can't update state for cross-process subframes until we
3743   // have FrameNavigationEntries.  Once we do, this should be a DCHECK.
3744   if (rvh->GetDelegate()->GetAsWebContents() != this)
3745     return;
3746
3747   // We must be prepared to handle state updates for any page, these occur
3748   // when the user is scrolling and entering form data, as well as when we're
3749   // leaving a page, in which case our state may have already been moved to
3750   // the next page. The navigation controller will look up the appropriate
3751   // NavigationEntry and update it when it is notified via the delegate.
3752
3753   int entry_index = controller_.GetEntryIndexWithPageID(
3754       rvh->GetSiteInstance(), page_id);
3755   if (entry_index < 0)
3756     return;
3757   NavigationEntry* entry = controller_.GetEntryAtIndex(entry_index);
3758
3759   if (page_state == entry->GetPageState())
3760     return;  // Nothing to update.
3761   entry->SetPageState(page_state);
3762   controller_.NotifyEntryChanged(entry, entry_index);
3763 }
3764
3765 void WebContentsImpl::UpdateTargetURL(RenderViewHost* render_view_host,
3766                                       const GURL& url) {
3767   if (fullscreen_widget_routing_id_ != MSG_ROUTING_NONE) {
3768     // If we're fullscreen only update the url if it's from the fullscreen
3769     // renderer.
3770     RenderWidgetHostView* fs = GetFullscreenRenderWidgetHostView();
3771     if (fs && fs->GetRenderWidgetHost() != render_view_host)
3772       return;
3773   }
3774   if (delegate_)
3775     delegate_->UpdateTargetURL(this, url);
3776 }
3777
3778 void WebContentsImpl::Close(RenderViewHost* rvh) {
3779 #if defined(OS_MACOSX)
3780   // The UI may be in an event-tracking loop, such as between the
3781   // mouse-down and mouse-up in text selection or a button click.
3782   // Defer the close until after tracking is complete, so that we
3783   // don't free objects out from under the UI.
3784   // TODO(shess): This could get more fine-grained.  For instance,
3785   // closing a tab in another window while selecting text in the
3786   // current window's Omnibox should be just fine.
3787   if (view_->IsEventTracking()) {
3788     view_->CloseTabAfterEventTracking();
3789     return;
3790   }
3791 #endif
3792
3793   // Ignore this if it comes from a RenderViewHost that we aren't showing.
3794   if (delegate_ && rvh == GetRenderViewHost())
3795     delegate_->CloseContents(this);
3796 }
3797
3798 void WebContentsImpl::SwappedOut(RenderFrameHost* rfh) {
3799   if (delegate_ && rfh->GetRenderViewHost() == GetRenderViewHost())
3800     delegate_->SwappedOut(this);
3801 }
3802
3803 void WebContentsImpl::DidDeferAfterResponseStarted(
3804     const TransitionLayerData& transition_data) {
3805 #if defined(OS_ANDROID)
3806   GetWebContentsAndroid()->DidDeferAfterResponseStarted(transition_data);
3807 #endif
3808 }
3809
3810 bool WebContentsImpl::WillHandleDeferAfterResponseStarted() {
3811 #if defined(OS_ANDROID)
3812   return GetWebContentsAndroid()->WillHandleDeferAfterResponseStarted();
3813 #else
3814   return false;
3815 #endif
3816 }
3817
3818 void WebContentsImpl::RequestMove(const gfx::Rect& new_bounds) {
3819   if (delegate_ && delegate_->IsPopupOrPanel(this))
3820     delegate_->MoveContents(this, new_bounds);
3821 }
3822
3823 void WebContentsImpl::DidStartLoading(RenderFrameHost* render_frame_host,
3824                                       bool to_different_document) {
3825   SetIsLoading(render_frame_host->GetRenderViewHost(), true,
3826                to_different_document, NULL);
3827
3828   // Notify accessibility that the user is navigating away from the
3829   // current document.
3830   //
3831   // TODO(dmazzoni): do this using a WebContentsObserver.
3832   FrameTreeNode* ftn = static_cast<RenderFrameHostImpl*>(render_frame_host)->
3833       frame_tree_node();
3834   BrowserAccessibilityManager* manager =
3835       ftn->current_frame_host()->browser_accessibility_manager();
3836   if (manager)
3837     manager->UserIsNavigatingAway();
3838 }
3839
3840 void WebContentsImpl::DidStopLoading(RenderFrameHost* render_frame_host) {
3841   scoped_ptr<LoadNotificationDetails> details;
3842
3843   // Use the last committed entry rather than the active one, in case a
3844   // pending entry has been created.
3845   NavigationEntry* entry = controller_.GetLastCommittedEntry();
3846   Navigator* navigator = frame_tree_.root()->navigator();
3847
3848   // An entry may not exist for a stop when loading an initial blank page or
3849   // if an iframe injected by script into a blank page finishes loading.
3850   if (entry) {
3851     base::TimeDelta elapsed =
3852         base::TimeTicks::Now() - navigator->GetCurrentLoadStart();
3853
3854     details.reset(new LoadNotificationDetails(
3855         entry->GetVirtualURL(),
3856         entry->GetTransitionType(),
3857         elapsed,
3858         &controller_,
3859         controller_.GetCurrentEntryIndex()));
3860   }
3861
3862   SetIsLoading(render_frame_host->GetRenderViewHost(), false, true,
3863                details.get());
3864 }
3865
3866 void WebContentsImpl::DidCancelLoading() {
3867   controller_.DiscardNonCommittedEntries();
3868
3869   // Update the URL display.
3870   NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
3871 }
3872
3873 void WebContentsImpl::DidAccessInitialDocument() {
3874   has_accessed_initial_document_ = true;
3875
3876   // We may have left a failed browser-initiated navigation in the address bar
3877   // to let the user edit it and try again.  Clear it now that content might
3878   // show up underneath it.
3879   if (!IsLoading() && controller_.GetPendingEntry())
3880     controller_.DiscardPendingEntry();
3881
3882   // Update the URL display.
3883   NotifyNavigationStateChanged(INVALIDATE_TYPE_URL);
3884 }
3885
3886 void WebContentsImpl::DidDisownOpener(RenderFrameHost* render_frame_host) {
3887   // No action is necessary if the opener has already been cleared.
3888   if (!opener_)
3889     return;
3890
3891   // Clear our opener so that future cross-process navigations don't have an
3892   // opener assigned.
3893   RemoveDestructionObserver(opener_);
3894   opener_ = NULL;
3895
3896   // Notify all swapped out RenderViewHosts for this tab.  This is important
3897   // in case we go back to them, or if another window in those processes tries
3898   // to access window.opener.
3899   GetRenderManager()->DidDisownOpener(render_frame_host);
3900 }
3901
3902 void WebContentsImpl::DocumentOnLoadCompleted(
3903     RenderFrameHost* render_frame_host) {
3904   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
3905                     DocumentOnLoadCompletedInMainFrame());
3906
3907   // TODO(avi): Remove. http://crbug.com/170921
3908   NotificationService::current()->Notify(
3909       NOTIFICATION_LOAD_COMPLETED_MAIN_FRAME,
3910       Source<WebContents>(this),
3911       NotificationService::NoDetails());
3912 }
3913
3914 void WebContentsImpl::UpdateTitle(RenderFrameHost* render_frame_host,
3915                                   int32 page_id,
3916                                   const base::string16& title,
3917                                   base::i18n::TextDirection title_direction) {
3918   RenderViewHost* rvh = render_frame_host->GetRenderViewHost();
3919
3920   // If we have a title, that's a pretty good indication that we've started
3921   // getting useful data.
3922   SetNotWaitingForResponse();
3923
3924   // Try to find the navigation entry, which might not be the current one.
3925   // For example, it might be from a pending RVH for the pending entry.
3926   NavigationEntryImpl* entry = controller_.GetEntryWithPageID(
3927       rvh->GetSiteInstance(), page_id);
3928
3929   // We can handle title updates when we don't have an entry in
3930   // UpdateTitleForEntry, but only if the update is from the current RVH.
3931   // TODO(avi): Change to make decisions based on the RenderFrameHost.
3932   if (!entry && rvh != GetRenderViewHost())
3933     return;
3934
3935   // TODO(evan): make use of title_direction.
3936   // http://code.google.com/p/chromium/issues/detail?id=27094
3937   if (!UpdateTitleForEntry(entry, title))
3938     return;
3939
3940   // Broadcast notifications when the UI should be updated.
3941   if (entry == controller_.GetEntryAtOffset(0))
3942     NotifyNavigationStateChanged(INVALIDATE_TYPE_TITLE);
3943 }
3944
3945 void WebContentsImpl::UpdateEncoding(RenderFrameHost* render_frame_host,
3946                                      const std::string& encoding) {
3947   SetEncoding(encoding);
3948 }
3949
3950 void WebContentsImpl::DocumentAvailableInMainFrame(
3951     RenderViewHost* render_view_host) {
3952   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
3953                     DocumentAvailableInMainFrame());
3954 }
3955 void WebContentsImpl::RouteCloseEvent(RenderViewHost* rvh) {
3956   // Tell the active RenderViewHost to run unload handlers and close, as long
3957   // as the request came from a RenderViewHost in the same BrowsingInstance.
3958   // In most cases, we receive this from a swapped out RenderViewHost.
3959   // It is possible to receive it from one that has just been swapped in,
3960   // in which case we might as well deliver the message anyway.
3961   if (rvh->GetSiteInstance()->IsRelatedSiteInstance(GetSiteInstance()))
3962     GetRenderViewHost()->ClosePage();
3963 }
3964
3965 void WebContentsImpl::RouteMessageEvent(
3966     RenderViewHost* rvh,
3967     const ViewMsg_PostMessage_Params& params) {
3968   // Only deliver the message to the active RenderViewHost if the request
3969   // came from a RenderViewHost in the same BrowsingInstance or if this
3970   // WebContents is dedicated to a browser plugin guest.
3971   // Note: This check means that an embedder could theoretically receive a
3972   // postMessage from anyone (not just its own guests). However, this is
3973   // probably not a risk for apps since other pages won't have references
3974   // to App windows.
3975   if (!rvh->GetSiteInstance()->IsRelatedSiteInstance(GetSiteInstance()) &&
3976       !GetBrowserPluginGuest() && !GetBrowserPluginEmbedder())
3977     return;
3978
3979   ViewMsg_PostMessage_Params new_params(params);
3980
3981   if (!params.message_port_ids.empty()) {
3982     MessagePortMessageFilter* message_port_message_filter =
3983         static_cast<RenderProcessHostImpl*>(GetRenderProcessHost())
3984             ->message_port_message_filter();
3985     message_port_message_filter->UpdateMessagePortsWithNewRoutes(
3986         params.message_port_ids,
3987         &new_params.new_routing_ids);
3988   }
3989
3990   // If there is a source_routing_id, translate it to the routing ID for
3991   // the equivalent swapped out RVH in the target process.  If we need
3992   // to create a swapped out RVH for the source tab, we create its opener
3993   // chain as well, since those will also be accessible to the target page.
3994   if (new_params.source_routing_id != MSG_ROUTING_NONE) {
3995     // Try to look up the WebContents for the source page.
3996     WebContentsImpl* source_contents = NULL;
3997     RenderViewHostImpl* source_rvh = RenderViewHostImpl::FromID(
3998         rvh->GetProcess()->GetID(), params.source_routing_id);
3999     if (source_rvh) {
4000       source_contents = static_cast<WebContentsImpl*>(
4001           source_rvh->GetDelegate()->GetAsWebContents());
4002     }
4003
4004     if (source_contents) {
4005       if (GetBrowserPluginGuest()) {
4006         // We create a swapped out RenderView for the embedder in the guest's
4007         // render process but we intentionally do not expose the embedder's
4008         // opener chain to it.
4009         new_params.source_routing_id =
4010             source_contents->CreateSwappedOutRenderView(GetSiteInstance());
4011       } else {
4012         new_params.source_routing_id =
4013             source_contents->CreateOpenerRenderViews(GetSiteInstance());
4014       }
4015     } else {
4016       // We couldn't find it, so don't pass a source frame.
4017       new_params.source_routing_id = MSG_ROUTING_NONE;
4018     }
4019   }
4020
4021   // In most cases, we receive this from a swapped out RenderViewHost.
4022   // It is possible to receive it from one that has just been swapped in,
4023   // in which case we might as well deliver the message anyway.
4024   Send(new ViewMsg_PostMessageEvent(GetRoutingID(), new_params));
4025 }
4026
4027 bool WebContentsImpl::AddMessageToConsole(int32 level,
4028                                           const base::string16& message,
4029                                           int32 line_no,
4030                                           const base::string16& source_id) {
4031   if (!delegate_)
4032     return false;
4033   return delegate_->AddMessageToConsole(this, level, message, line_no,
4034                                         source_id);
4035 }
4036
4037 int WebContentsImpl::CreateSwappedOutRenderView(
4038     SiteInstance* instance) {
4039   int render_view_routing_id = MSG_ROUTING_NONE;
4040   GetRenderManager()->CreateRenderFrame(
4041       instance, nullptr, MSG_ROUTING_NONE,
4042       CREATE_RF_SWAPPED_OUT | CREATE_RF_FOR_MAIN_FRAME_NAVIGATION |
4043           CREATE_RF_HIDDEN,
4044       &render_view_routing_id);
4045   return render_view_routing_id;
4046 }
4047
4048 void WebContentsImpl::OnUserGesture() {
4049   // Notify observers.
4050   FOR_EACH_OBSERVER(WebContentsObserver, observers_, DidGetUserGesture());
4051
4052   ResourceDispatcherHostImpl* rdh = ResourceDispatcherHostImpl::Get();
4053   if (rdh)  // NULL in unittests.
4054     rdh->OnUserGesture(this);
4055 }
4056
4057 void WebContentsImpl::OnIgnoredUIEvent() {
4058   // Notify observers.
4059   FOR_EACH_OBSERVER(WebContentsObserver, observers_, DidGetIgnoredUIEvent());
4060 }
4061
4062 void WebContentsImpl::RendererUnresponsive(RenderViewHost* render_view_host) {
4063   // Don't show hung renderer dialog for a swapped out RVH.
4064   if (render_view_host != GetRenderViewHost())
4065     return;
4066
4067   RenderViewHostImpl* rvhi = static_cast<RenderViewHostImpl*>(render_view_host);
4068   RenderFrameHostImpl* rfhi =
4069       static_cast<RenderFrameHostImpl*>(rvhi->GetMainFrame());
4070
4071   // Ignore renderer unresponsive event if debugger is attached to the tab
4072   // since the event may be a result of the renderer sitting on a breakpoint.
4073   // See http://crbug.com/65458
4074   if (DevToolsAgentHost::IsDebuggerAttached(this))
4075     return;
4076
4077   if (rfhi->IsWaitingForBeforeUnloadACK() ||
4078       rfhi->IsWaitingForUnloadACK()) {
4079     // Hang occurred while firing the beforeunload/unload handler.
4080     // Pretend the handler fired so tab closing continues as if it had.
4081     frame_tree_.ForEach(base::Bind(
4082           &EnableSuddenTermination, rvhi->GetSiteInstance()->GetId()));
4083
4084     if (!GetRenderManager()->ShouldCloseTabOnUnresponsiveRenderer())
4085       return;
4086
4087     // If the tab hangs in the beforeunload/unload handler there's really
4088     // nothing we can do to recover. If the hang is in the beforeunload handler,
4089     // pretend the beforeunload listeners have all fired and allow the delegate
4090     // to continue closing; the user will not have the option of cancelling the
4091     // close. Otherwise, pretend the unload listeners have all fired and close
4092     // the tab.
4093     bool close = true;
4094     if (rfhi->IsWaitingForBeforeUnloadACK() && delegate_) {
4095       delegate_->BeforeUnloadFired(this, true, &close);
4096     }
4097     if (close)
4098       Close(rvhi);
4099     return;
4100   }
4101
4102   if (!GetRenderViewHostImpl() || !GetRenderViewHostImpl()->IsRenderViewLive())
4103     return;
4104
4105   if (delegate_)
4106     delegate_->RendererUnresponsive(this);
4107 }
4108
4109 void WebContentsImpl::RendererResponsive(RenderViewHost* render_view_host) {
4110   if (delegate_)
4111     delegate_->RendererResponsive(this);
4112 }
4113
4114 void WebContentsImpl::LoadStateChanged(
4115     const GURL& url,
4116     const net::LoadStateWithParam& load_state,
4117     uint64 upload_position,
4118     uint64 upload_size) {
4119   load_state_ = load_state;
4120   upload_position_ = upload_position;
4121   upload_size_ = upload_size;
4122   load_state_host_ = net::IDNToUnicode(url.host(),
4123       GetContentClient()->browser()->GetAcceptLangs(
4124           GetBrowserContext()));
4125   if (load_state_.state == net::LOAD_STATE_READING_RESPONSE)
4126     SetNotWaitingForResponse();
4127   if (IsLoading()) {
4128     NotifyNavigationStateChanged(static_cast<InvalidateTypes>(
4129         INVALIDATE_TYPE_LOAD | INVALIDATE_TYPE_TAB));
4130   }
4131 }
4132
4133 void WebContentsImpl::BeforeUnloadFiredFromRenderManager(
4134     bool proceed, const base::TimeTicks& proceed_time,
4135     bool* proceed_to_fire_unload) {
4136   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
4137                     BeforeUnloadFired(proceed_time));
4138   if (delegate_)
4139     delegate_->BeforeUnloadFired(this, proceed, proceed_to_fire_unload);
4140   // Note: |this| might be deleted at this point.
4141 }
4142
4143 void WebContentsImpl::RenderProcessGoneFromRenderManager(
4144     RenderViewHost* render_view_host) {
4145   DCHECK(crashed_status_ != base::TERMINATION_STATUS_STILL_RUNNING);
4146   RenderViewTerminated(render_view_host, crashed_status_, crashed_error_code_);
4147 }
4148
4149 void WebContentsImpl::UpdateRenderViewSizeForRenderManager() {
4150   // TODO(brettw) this is a hack. See WebContentsView::SizeContents.
4151   gfx::Size size = GetSizeForNewRenderView();
4152   // 0x0 isn't a valid window size (minimal window size is 1x1) but it may be
4153   // here during container initialization and normal window size will be set
4154   // later. In case of tab duplication this resizing to 0x0 prevents setting
4155   // normal size later so just ignore it.
4156   if (!size.IsEmpty())
4157     view_->SizeContents(size);
4158 }
4159
4160 void WebContentsImpl::CancelModalDialogsForRenderManager() {
4161   // We need to cancel modal dialogs when doing a process swap, since the load
4162   // deferrer would prevent us from swapping out.
4163   if (dialog_manager_)
4164     dialog_manager_->CancelActiveAndPendingDialogs(this);
4165 }
4166
4167 void WebContentsImpl::NotifySwappedFromRenderManager(RenderFrameHost* old_host,
4168                                                      RenderFrameHost* new_host,
4169                                                      bool is_main_frame) {
4170   if (is_main_frame) {
4171     NotifyViewSwapped(old_host ? old_host->GetRenderViewHost() : NULL,
4172                       new_host->GetRenderViewHost());
4173
4174     // Make sure the visible RVH reflects the new delegate's preferences.
4175     if (delegate_)
4176       view_->SetOverscrollControllerEnabled(CanOverscrollContent());
4177
4178     view_->RenderViewSwappedIn(new_host->GetRenderViewHost());
4179   }
4180
4181   NotifyFrameSwapped(old_host, new_host);
4182 }
4183
4184 int WebContentsImpl::CreateOpenerRenderViewsForRenderManager(
4185     SiteInstance* instance) {
4186   if (!opener_)
4187     return MSG_ROUTING_NONE;
4188
4189   // Recursively create RenderViews for anything else in the opener chain.
4190   return opener_->CreateOpenerRenderViews(instance);
4191 }
4192
4193 int WebContentsImpl::CreateOpenerRenderViews(SiteInstance* instance) {
4194   int opener_route_id = MSG_ROUTING_NONE;
4195
4196   // If this tab has an opener, ensure it has a RenderView in the given
4197   // SiteInstance as well.
4198   if (opener_)
4199     opener_route_id = opener_->CreateOpenerRenderViews(instance);
4200
4201   // If any of the renderers (current, pending, or swapped out) for this
4202   // WebContents has the same SiteInstance, use it.
4203   if (GetRenderManager()->current_host()->GetSiteInstance() == instance)
4204     return GetRenderManager()->current_host()->GetRoutingID();
4205
4206   if (GetRenderManager()->pending_render_view_host() &&
4207       GetRenderManager()->pending_render_view_host()->GetSiteInstance() ==
4208           instance)
4209     return GetRenderManager()->pending_render_view_host()->GetRoutingID();
4210
4211   RenderViewHostImpl* rvh = GetRenderManager()->GetSwappedOutRenderViewHost(
4212       instance);
4213   if (rvh)
4214     return rvh->GetRoutingID();
4215
4216   // Create a swapped out RenderView in the given SiteInstance if none exists,
4217   // setting its opener to the given route_id.  Return the new view's route_id.
4218   int render_view_routing_id = MSG_ROUTING_NONE;
4219   GetRenderManager()->CreateRenderFrame(instance, nullptr, opener_route_id,
4220                                         CREATE_RF_FOR_MAIN_FRAME_NAVIGATION |
4221                                             CREATE_RF_SWAPPED_OUT |
4222                                             CREATE_RF_HIDDEN,
4223                                         &render_view_routing_id);
4224   return render_view_routing_id;
4225 }
4226
4227 NavigationControllerImpl& WebContentsImpl::GetControllerForRenderManager() {
4228   return GetController();
4229 }
4230
4231 scoped_ptr<WebUIImpl> WebContentsImpl::CreateWebUIForRenderManager(
4232     const GURL& url) {
4233   return scoped_ptr<WebUIImpl>(static_cast<WebUIImpl*>(CreateWebUI(url)));
4234 }
4235
4236 NavigationEntry*
4237     WebContentsImpl::GetLastCommittedNavigationEntryForRenderManager() {
4238   return controller_.GetLastCommittedEntry();
4239 }
4240
4241 bool WebContentsImpl::CreateRenderViewForRenderManager(
4242     RenderViewHost* render_view_host,
4243     int opener_route_id,
4244     int proxy_routing_id,
4245     bool for_main_frame_navigation) {
4246   TRACE_EVENT0("browser,navigation",
4247                "WebContentsImpl::CreateRenderViewForRenderManager");
4248   // Can be NULL during tests.
4249   RenderWidgetHostViewBase* rwh_view;
4250   // TODO(kenrb): RenderWidgetHostViewChildFrame special casing is temporary
4251   // until RenderWidgetHost is attached to RenderFrameHost. We need to special
4252   // case this because RWH is still a base class of RenderViewHost, and child
4253   // frame RWHVs are unique in that they do not have their own WebContents.
4254   if (!for_main_frame_navigation) {
4255     RenderWidgetHostViewChildFrame* rwh_view_child =
4256         new RenderWidgetHostViewChildFrame(render_view_host);
4257     rwh_view = rwh_view_child;
4258   } else {
4259     rwh_view = view_->CreateViewForWidget(render_view_host, false);
4260   }
4261
4262   // Now that the RenderView has been created, we need to tell it its size.
4263   if (rwh_view)
4264     rwh_view->SetSize(GetSizeForNewRenderView());
4265
4266   // Make sure we use the correct starting page_id in the new RenderView.
4267   UpdateMaxPageIDIfNecessary(render_view_host);
4268   int32 max_page_id =
4269       GetMaxPageIDForSiteInstance(render_view_host->GetSiteInstance());
4270
4271   if (!static_cast<RenderViewHostImpl*>(
4272           render_view_host)->CreateRenderView(base::string16(),
4273                                               opener_route_id,
4274                                               proxy_routing_id,
4275                                               max_page_id,
4276                                               created_with_opener_)) {
4277     return false;
4278   }
4279
4280   SetHistoryOffsetAndLengthForView(render_view_host,
4281                                    controller_.GetLastCommittedEntryIndex(),
4282                                    controller_.GetEntryCount());
4283
4284 #if defined(OS_POSIX) && !defined(OS_MACOSX) && !defined(OS_ANDROID)
4285   // Force a ViewMsg_Resize to be sent, needed to make plugins show up on
4286   // linux. See crbug.com/83941.
4287   if (rwh_view) {
4288     if (RenderWidgetHost* render_widget_host = rwh_view->GetRenderWidgetHost())
4289       render_widget_host->WasResized();
4290   }
4291 #endif
4292
4293   return true;
4294 }
4295
4296 bool WebContentsImpl::CreateRenderFrameForRenderManager(
4297     RenderFrameHost* render_frame_host,
4298     int parent_routing_id,
4299     int proxy_routing_id) {
4300   TRACE_EVENT0("browser,navigation",
4301                "WebContentsImpl::CreateRenderFrameForRenderManager");
4302
4303   RenderFrameHostImpl* rfh =
4304       static_cast<RenderFrameHostImpl*>(render_frame_host);
4305   if (!rfh->CreateRenderFrame(parent_routing_id, proxy_routing_id))
4306     return false;
4307
4308   // TODO(nasko): When RenderWidgetHost is owned by RenderFrameHost, the passed
4309   // RenderFrameHost will have to be associated with the appropriate
4310   // RenderWidgetHostView or a new one should be created here.
4311
4312   return true;
4313 }
4314
4315 #if defined(OS_ANDROID)
4316
4317 base::android::ScopedJavaLocalRef<jobject>
4318 WebContentsImpl::GetJavaWebContents() {
4319   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
4320   return GetWebContentsAndroid()->GetJavaObject();
4321 }
4322
4323 WebContentsAndroid* WebContentsImpl::GetWebContentsAndroid() {
4324   WebContentsAndroid* web_contents_android =
4325       static_cast<WebContentsAndroid*>(GetUserData(kWebContentsAndroidKey));
4326   if (!web_contents_android) {
4327     web_contents_android = new WebContentsAndroid(this);
4328     SetUserData(kWebContentsAndroidKey, web_contents_android);
4329   }
4330   return web_contents_android;
4331 }
4332
4333 bool WebContentsImpl::CreateRenderViewForInitialEmptyDocument() {
4334   return CreateRenderViewForRenderManager(GetRenderViewHost(),
4335                                           MSG_ROUTING_NONE,
4336                                           MSG_ROUTING_NONE,
4337                                           true);
4338 }
4339
4340 #elif defined(OS_MACOSX)
4341
4342 void WebContentsImpl::SetAllowOtherViews(bool allow) {
4343   view_->SetAllowOtherViews(allow);
4344 }
4345
4346 bool WebContentsImpl::GetAllowOtherViews() {
4347   return view_->GetAllowOtherViews();
4348 }
4349
4350 #endif
4351
4352 void WebContentsImpl::OnDialogClosed(int render_process_id,
4353                                      int render_frame_id,
4354                                      IPC::Message* reply_msg,
4355                                      bool dialog_was_suppressed,
4356                                      bool success,
4357                                      const base::string16& user_input) {
4358   RenderFrameHostImpl* rfh = RenderFrameHostImpl::FromID(render_process_id,
4359                                                          render_frame_id);
4360   last_dialog_suppressed_ = dialog_was_suppressed;
4361
4362   if (is_showing_before_unload_dialog_ && !success) {
4363     // If a beforeunload dialog is canceled, we need to stop the throbber from
4364     // spinning, since we forced it to start spinning in Navigate.
4365     if (rfh)
4366       DidStopLoading(rfh);
4367     controller_.DiscardNonCommittedEntries();
4368
4369     FOR_EACH_OBSERVER(WebContentsObserver, observers_,
4370                       BeforeUnloadDialogCancelled());
4371   }
4372
4373   is_showing_before_unload_dialog_ = false;
4374   if (rfh) {
4375     rfh->JavaScriptDialogClosed(reply_msg, success, user_input,
4376                                 dialog_was_suppressed);
4377   } else {
4378     // Don't leak the sync IPC reply if the RFH or process is gone.
4379     delete reply_msg;
4380   }
4381 }
4382
4383 void WebContentsImpl::SetEncoding(const std::string& encoding) {
4384   if (encoding == last_reported_encoding_)
4385     return;
4386   last_reported_encoding_ = encoding;
4387
4388   canonical_encoding_ = GetContentClient()->browser()->
4389       GetCanonicalEncodingNameByAliasName(encoding);
4390 }
4391
4392 bool WebContentsImpl::IsHidden() {
4393   return capturer_count_ == 0 && !should_normally_be_visible_;
4394 }
4395
4396 RenderFrameHostManager* WebContentsImpl::GetRenderManager() const {
4397   return frame_tree_.root()->render_manager();
4398 }
4399
4400 RenderViewHostImpl* WebContentsImpl::GetRenderViewHostImpl() {
4401   return static_cast<RenderViewHostImpl*>(GetRenderViewHost());
4402 }
4403
4404 BrowserPluginGuest* WebContentsImpl::GetBrowserPluginGuest() const {
4405   return browser_plugin_guest_.get();
4406 }
4407
4408 void WebContentsImpl::SetBrowserPluginGuest(BrowserPluginGuest* guest) {
4409   CHECK(!browser_plugin_guest_);
4410   browser_plugin_guest_.reset(guest);
4411 }
4412
4413 BrowserPluginEmbedder* WebContentsImpl::GetBrowserPluginEmbedder() const {
4414   return browser_plugin_embedder_.get();
4415 }
4416
4417 void WebContentsImpl::ClearPowerSaveBlockers(
4418     RenderFrameHost* render_frame_host) {
4419   RemoveAllMediaPlayerEntries(render_frame_host, &active_audio_players_);
4420   RemoveAllMediaPlayerEntries(render_frame_host, &active_video_players_);
4421   MaybeReleasePowerSaveBlockers();
4422 }
4423
4424 void WebContentsImpl::ClearAllPowerSaveBlockers() {
4425   active_audio_players_.clear();
4426   active_video_players_.clear();
4427   audio_power_save_blocker_.reset();
4428   video_power_save_blocker_.reset();
4429 }
4430
4431 gfx::Size WebContentsImpl::GetSizeForNewRenderView() {
4432   gfx::Size size;
4433   if (delegate_)
4434     size = delegate_->GetSizeForNewRenderView(this);
4435   if (size.IsEmpty())
4436     size = GetContainerBounds().size();
4437   return size;
4438 }
4439
4440 void WebContentsImpl::OnFrameRemoved(RenderFrameHost* render_frame_host) {
4441   FOR_EACH_OBSERVER(
4442       WebContentsObserver, observers_, FrameDeleted(render_frame_host));
4443 }
4444
4445 void WebContentsImpl::OnPreferredSizeChanged(const gfx::Size& old_size) {
4446   if (!delegate_)
4447     return;
4448   const gfx::Size new_size = GetPreferredSize();
4449   if (new_size != old_size)
4450     delegate_->UpdatePreferredSize(this, new_size);
4451 }
4452
4453 void WebContentsImpl::AddMediaPlayerEntry(int64 player_cookie,
4454                                           ActiveMediaPlayerMap* player_map) {
4455   if (!HasValidFrameSource())
4456     return;
4457
4458   const uintptr_t key =
4459       reinterpret_cast<uintptr_t>(render_frame_message_source_);
4460   DCHECK(std::find((*player_map)[key].begin(),
4461                    (*player_map)[key].end(),
4462                    player_cookie) == (*player_map)[key].end());
4463   (*player_map)[key].push_back(player_cookie);
4464 }
4465
4466 void WebContentsImpl::RemoveMediaPlayerEntry(int64 player_cookie,
4467                                              ActiveMediaPlayerMap* player_map) {
4468   if (!HasValidFrameSource())
4469     return;
4470
4471   const uintptr_t key =
4472       reinterpret_cast<uintptr_t>(render_frame_message_source_);
4473   ActiveMediaPlayerMap::iterator it = player_map->find(key);
4474   if (it == player_map->end())
4475     return;
4476
4477   // Remove the player.
4478   PlayerList::iterator player_it =
4479       std::find(it->second.begin(), it->second.end(), player_cookie);
4480   if (player_it != it->second.end())
4481     it->second.erase(player_it);
4482
4483   // If there are no players left, remove the map entry.
4484   if (it->second.empty())
4485     player_map->erase(it);
4486 }
4487
4488 void WebContentsImpl::RemoveAllMediaPlayerEntries(
4489     RenderFrameHost* render_frame_host,
4490     ActiveMediaPlayerMap* player_map) {
4491   ActiveMediaPlayerMap::iterator it =
4492       player_map->find(reinterpret_cast<uintptr_t>(render_frame_host));
4493   if (it == player_map->end())
4494     return;
4495   player_map->erase(it);
4496 }
4497
4498 void WebContentsImpl::ResumeResponseDeferredAtStart() {
4499   FrameTreeNode* node = frame_tree_.root();
4500   node->render_manager()->ResumeResponseDeferredAtStart();
4501 }
4502
4503 void WebContentsImpl::SetForceDisableOverscrollContent(bool force_disable) {
4504   force_disable_overscroll_content_ = force_disable;
4505   if (view_)
4506     view_->SetOverscrollControllerEnabled(CanOverscrollContent());
4507 }
4508
4509 }  // namespace content