content/browser/frame_host/render_frame_host_impl.cc

   1 // Copyright 2013 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/frame_host/render_frame_host_impl.h"
   6
   7 #include "base/bind.h"
   8 #include "base/command_line.h"
   9 #include "base/containers/hash_tables.h"
  10 #include "base/lazy_instance.h"
  11 #include "base/metrics/histogram.h"
  12 #include "base/metrics/user_metrics_action.h"
  13 #include "base/process/kill.h"
  14 #include "base/time/time.h"
  15 #include "content/browser/accessibility/accessibility_mode_helper.h"
  16 #include "content/browser/accessibility/browser_accessibility_manager.h"
  17 #include "content/browser/accessibility/browser_accessibility_state_impl.h"
  18 #include "content/browser/child_process_security_policy_impl.h"
  19 #include "content/browser/frame_host/cross_process_frame_connector.h"
  20 #include "content/browser/frame_host/cross_site_transferring_request.h"
  21 #include "content/browser/frame_host/frame_accessibility.h"
  22 #include "content/browser/frame_host/frame_tree.h"
  23 #include "content/browser/frame_host/frame_tree_node.h"
  24 #include "content/browser/frame_host/navigation_request.h"
  25 #include "content/browser/frame_host/navigator.h"
  26 #include "content/browser/frame_host/navigator_impl.h"
  27 #include "content/browser/frame_host/render_frame_host_delegate.h"
  28 #include "content/browser/frame_host/render_frame_proxy_host.h"
  29 #include "content/browser/frame_host/render_widget_host_view_child_frame.h"
  30 #include "content/browser/geolocation/geolocation_service_context.h"
  31 #include "content/browser/permissions/permission_service_context.h"
  32 #include "content/browser/permissions/permission_service_impl.h"
  33 #include "content/browser/presentation/presentation_service_impl.h"
  34 #include "content/browser/renderer_host/input/input_router.h"
  35 #include "content/browser/renderer_host/input/timeout_monitor.h"
  36 #include "content/browser/renderer_host/render_process_host_impl.h"
  37 #include "content/browser/renderer_host/render_view_host_delegate.h"
  38 #include "content/browser/renderer_host/render_view_host_delegate_view.h"
  39 #include "content/browser/renderer_host/render_view_host_impl.h"
  40 #include "content/browser/renderer_host/render_widget_host_impl.h"
  41 #include "content/browser/renderer_host/render_widget_host_view_base.h"
  42 #include "content/browser/transition_request_manager.h"
  43 #include "content/common/accessibility_messages.h"
  44 #include "content/common/frame_messages.h"
  45 #include "content/common/input_messages.h"
  46 #include "content/common/inter_process_time_ticks_converter.h"
  47 #include "content/common/navigation_params.h"
  48 #include "content/common/render_frame_setup.mojom.h"
  49 #include "content/common/swapped_out_messages.h"
  50 #include "content/public/browser/ax_event_notification_details.h"
  51 #include "content/public/browser/browser_accessibility_state.h"
  52 #include "content/public/browser/browser_context.h"
  53 #include "content/public/browser/browser_plugin_guest_manager.h"
  54 #include "content/public/browser/browser_thread.h"
  55 #include "content/public/browser/content_browser_client.h"
  56 #include "content/public/browser/render_process_host.h"
  57 #include "content/public/browser/render_widget_host_view.h"
  58 #include "content/public/browser/stream_handle.h"
  59 #include "content/public/browser/user_metrics.h"
  60 #include "content/public/common/content_constants.h"
  61 #include "content/public/common/content_switches.h"
  62 #include "content/public/common/url_constants.h"
  63 #include "content/public/common/url_utils.h"
  64 #include "ui/accessibility/ax_tree.h"
  65 #include "url/gurl.h"
  66
  67 #if defined(OS_MACOSX)
  68 #include "content/browser/frame_host/popup_menu_helper_mac.h"
  69 #endif
  70
  71 #if defined(ENABLE_MEDIA_MOJO_RENDERER)
  72 #include "media/mojo/interfaces/media_renderer.mojom.h"
  73 #include "media/mojo/services/mojo_renderer_service.h"
  74 #endif
  75
  76 using base::TimeDelta;
  77
  78 namespace content {
  79
  80 namespace {
  81
  82 // The next value to use for the accessibility reset token.
  83 int g_next_accessibility_reset_token = 1;
  84
  85 // The (process id, routing id) pair that identifies one RenderFrame.
  86 typedef std::pair<int32, int32> RenderFrameHostID;
  87 typedef base::hash_map<RenderFrameHostID, RenderFrameHostImpl*>
  88     RoutingIDFrameMap;
  89 base::LazyInstance<RoutingIDFrameMap> g_routing_id_frame_map =
  90     LAZY_INSTANCE_INITIALIZER;
  91
  92 // Translate a WebKit text direction into a base::i18n one.
  93 base::i18n::TextDirection WebTextDirectionToChromeTextDirection(
  94     blink::WebTextDirection dir) {
  95   switch (dir) {
  96     case blink::WebTextDirectionLeftToRight:
  97       return base::i18n::LEFT_TO_RIGHT;
  98     case blink::WebTextDirectionRightToLeft:
  99       return base::i18n::RIGHT_TO_LEFT;
 100     default:
 101       NOTREACHED();
 102       return base::i18n::UNKNOWN_DIRECTION;
 103   }
 104 }
 105
 106 }  // namespace
 107
 108 // static
 109 bool RenderFrameHostImpl::IsRFHStateActive(RenderFrameHostImplState rfh_state) {
 110   return rfh_state == STATE_DEFAULT;
 111 }
 112
 113 // static
 114 RenderFrameHost* RenderFrameHost::FromID(int render_process_id,
 115                                          int render_frame_id) {
 116   return RenderFrameHostImpl::FromID(render_process_id, render_frame_id);
 117 }
 118
 119 // static
 120 RenderFrameHostImpl* RenderFrameHostImpl::FromID(int process_id,
 121                                                  int routing_id) {
 122   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 123   RoutingIDFrameMap* frames = g_routing_id_frame_map.Pointer();
 124   RoutingIDFrameMap::iterator it = frames->find(
 125       RenderFrameHostID(process_id, routing_id));
 126   return it == frames->end() ? NULL : it->second;
 127 }
 128
 129 RenderFrameHostImpl::RenderFrameHostImpl(SiteInstance* site_instance,
 130                                          RenderViewHostImpl* render_view_host,
 131                                          RenderFrameHostDelegate* delegate,
 132                                          RenderWidgetHostDelegate* rwh_delegate,
 133                                          FrameTree* frame_tree,
 134                                          FrameTreeNode* frame_tree_node,
 135                                          int routing_id,
 136                                          int flags)
 137     : render_view_host_(render_view_host),
 138       delegate_(delegate),
 139       site_instance_(static_cast<SiteInstanceImpl*>(site_instance)),
 140       process_(site_instance->GetProcess()),
 141       cross_process_frame_connector_(NULL),
 142       render_frame_proxy_host_(NULL),
 143       frame_tree_(frame_tree),
 144       frame_tree_node_(frame_tree_node),
 145       routing_id_(routing_id),
 146       render_frame_created_(false),
 147       navigations_suspended_(false),
 148       has_beforeunload_handlers_(false),
 149       has_unload_handlers_(false),
 150       override_sudden_termination_status_(false),
 151       is_waiting_for_beforeunload_ack_(false),
 152       unload_ack_is_for_navigation_(false),
 153       accessibility_reset_token_(0),
 154       accessibility_reset_count_(0),
 155       no_create_browser_accessibility_manager_for_testing_(false),
 156       weak_ptr_factory_(this) {
 157   bool is_swapped_out = !!(flags & CREATE_RF_SWAPPED_OUT);
 158   bool hidden = !!(flags & CREATE_RF_HIDDEN);
 159   frame_tree_->RegisterRenderFrameHost(this);
 160   GetProcess()->AddRoute(routing_id_, this);
 161   g_routing_id_frame_map.Get().insert(std::make_pair(
 162       RenderFrameHostID(GetProcess()->GetID(), routing_id_),
 163       this));
 164
 165   if (is_swapped_out) {
 166     rfh_state_ = STATE_SWAPPED_OUT;
 167   } else {
 168     rfh_state_ = STATE_DEFAULT;
 169     GetSiteInstance()->increment_active_frame_count();
 170   }
 171
 172   SetUpMojoIfNeeded();
 173   swapout_event_monitor_timeout_.reset(new TimeoutMonitor(base::Bind(
 174       &RenderFrameHostImpl::OnSwappedOut, weak_ptr_factory_.GetWeakPtr())));
 175
 176   if (flags & CREATE_RF_NEEDS_RENDER_WIDGET_HOST) {
 177     render_widget_host_.reset(new RenderWidgetHostImpl(
 178         rwh_delegate, GetProcess(), MSG_ROUTING_NONE, hidden));
 179     render_widget_host_->set_owned_by_render_frame_host(true);
 180   }
 181 }
 182
 183 RenderFrameHostImpl::~RenderFrameHostImpl() {
 184   GetProcess()->RemoveRoute(routing_id_);
 185   g_routing_id_frame_map.Get().erase(
 186       RenderFrameHostID(GetProcess()->GetID(), routing_id_));
 187
 188   if (delegate_ && render_frame_created_)
 189     delegate_->RenderFrameDeleted(this);
 190
 191   FrameAccessibility::GetInstance()->OnRenderFrameHostDestroyed(this);
 192
 193   // If this was swapped out, it already decremented the active frame count of
 194   // the SiteInstance it belongs to.
 195   if (IsRFHStateActive(rfh_state_))
 196     GetSiteInstance()->decrement_active_frame_count();
 197
 198   // Notify the FrameTree that this RFH is going away, allowing it to shut down
 199   // the corresponding RenderViewHost if it is no longer needed.
 200   frame_tree_->UnregisterRenderFrameHost(this);
 201
 202   // NULL out the swapout timer; in crash dumps this member will be null only if
 203   // the dtor has run.
 204   swapout_event_monitor_timeout_.reset();
 205
 206   for (const auto& iter: visual_state_callbacks_) {
 207     iter.second.Run(false);
 208   }
 209
 210   if (render_widget_host_)
 211     render_widget_host_->Cleanup();
 212 }
 213
 214 int RenderFrameHostImpl::GetRoutingID() {
 215   return routing_id_;
 216 }
 217
 218 SiteInstanceImpl* RenderFrameHostImpl::GetSiteInstance() {
 219   return site_instance_.get();
 220 }
 221
 222 RenderProcessHost* RenderFrameHostImpl::GetProcess() {
 223   return process_;
 224 }
 225
 226 RenderFrameHost* RenderFrameHostImpl::GetParent() {
 227   FrameTreeNode* parent_node = frame_tree_node_->parent();
 228   if (!parent_node)
 229     return NULL;
 230   return parent_node->current_frame_host();
 231 }
 232
 233 const std::string& RenderFrameHostImpl::GetFrameName() {
 234   return frame_tree_node_->frame_name();
 235 }
 236
 237 bool RenderFrameHostImpl::IsCrossProcessSubframe() {
 238   FrameTreeNode* parent_node = frame_tree_node_->parent();
 239   if (!parent_node)
 240     return false;
 241   return GetSiteInstance() !=
 242       parent_node->current_frame_host()->GetSiteInstance();
 243 }
 244
 245 GURL RenderFrameHostImpl::GetLastCommittedURL() {
 246   return frame_tree_node_->current_url();
 247 }
 248
 249 gfx::NativeView RenderFrameHostImpl::GetNativeView() {
 250   RenderWidgetHostView* view = render_view_host_->GetView();
 251   if (!view)
 252     return NULL;
 253   return view->GetNativeView();
 254 }
 255
 256 void RenderFrameHostImpl::ExecuteJavaScript(
 257     const base::string16& javascript) {
 258   Send(new FrameMsg_JavaScriptExecuteRequest(routing_id_,
 259                                              javascript,
 260                                              0, false));
 261 }
 262
 263 void RenderFrameHostImpl::ExecuteJavaScript(
 264      const base::string16& javascript,
 265      const JavaScriptResultCallback& callback) {
 266   static int next_id = 1;
 267   int key = next_id++;
 268   Send(new FrameMsg_JavaScriptExecuteRequest(routing_id_,
 269                                              javascript,
 270                                              key, true));
 271   javascript_callbacks_.insert(std::make_pair(key, callback));
 272 }
 273
 274 void RenderFrameHostImpl::ExecuteJavaScriptForTests(
 275     const base::string16& javascript) {
 276   Send(new FrameMsg_JavaScriptExecuteRequestForTests(routing_id_,
 277                                                      javascript,
 278                                                      0, false));
 279 }
 280
 281 RenderViewHost* RenderFrameHostImpl::GetRenderViewHost() {
 282   return render_view_host_;
 283 }
 284
 285 ServiceRegistry* RenderFrameHostImpl::GetServiceRegistry() {
 286   return service_registry_.get();
 287 }
 288
 289 blink::WebPageVisibilityState RenderFrameHostImpl::GetVisibilityState() {
 290   // TODO(mlamouri,kenrb): call GetRenderWidgetHost() directly when it stops
 291   // returning nullptr in some cases. See https://crbug.com/455245.
 292   blink::WebPageVisibilityState visibility_state =
 293       RenderWidgetHostImpl::From(GetView()->GetRenderWidgetHost())->is_hidden()
 294           ? blink::WebPageVisibilityStateHidden
 295           : blink::WebPageVisibilityStateVisible;
 296   GetContentClient()->browser()->OverridePageVisibilityState(this,
 297                                                              &visibility_state);
 298   return visibility_state;
 299 }
 300
 301 bool RenderFrameHostImpl::Send(IPC::Message* message) {
 302   if (IPC_MESSAGE_ID_CLASS(message->type()) == InputMsgStart) {
 303     return render_view_host_->input_router()->SendInput(
 304         make_scoped_ptr(message));
 305   }
 306
 307   return GetProcess()->Send(message);
 308 }
 309
 310 bool RenderFrameHostImpl::OnMessageReceived(const IPC::Message &msg) {
 311   // Filter out most IPC messages if this frame is swapped out.
 312   // We still want to handle certain ACKs to keep our state consistent.
 313   if (is_swapped_out()) {
 314     if (!SwappedOutMessages::CanHandleWhileSwappedOut(msg)) {
 315       // If this is a synchronous message and we decided not to handle it,
 316       // we must send an error reply, or else the renderer will be stuck
 317       // and won't respond to future requests.
 318       if (msg.is_sync()) {
 319         IPC::Message* reply = IPC::SyncMessage::GenerateReply(&msg);
 320         reply->set_reply_error();
 321         Send(reply);
 322       }
 323       // Don't continue looking for someone to handle it.
 324       return true;
 325     }
 326   }
 327
 328   if (delegate_->OnMessageReceived(this, msg))
 329     return true;
 330
 331   RenderFrameProxyHost* proxy =
 332       frame_tree_node_->render_manager()->GetProxyToParent();
 333   if (proxy && proxy->cross_process_frame_connector() &&
 334       proxy->cross_process_frame_connector()->OnMessageReceived(msg))
 335     return true;
 336
 337   bool handled = true;
 338   IPC_BEGIN_MESSAGE_MAP(RenderFrameHostImpl, msg)
 339     IPC_MESSAGE_HANDLER(FrameHostMsg_AddMessageToConsole, OnAddMessageToConsole)
 340     IPC_MESSAGE_HANDLER(FrameHostMsg_Detach, OnDetach)
 341     IPC_MESSAGE_HANDLER(FrameHostMsg_FrameFocused, OnFrameFocused)
 342     IPC_MESSAGE_HANDLER(FrameHostMsg_DidStartProvisionalLoadForFrame,
 343                         OnDidStartProvisionalLoadForFrame)
 344     IPC_MESSAGE_HANDLER(FrameHostMsg_DidFailProvisionalLoadWithError,
 345                         OnDidFailProvisionalLoadWithError)
 346     IPC_MESSAGE_HANDLER(FrameHostMsg_DidFailLoadWithError,
 347                         OnDidFailLoadWithError)
 348     IPC_MESSAGE_HANDLER_GENERIC(FrameHostMsg_DidCommitProvisionalLoad,
 349                                 OnDidCommitProvisionalLoad(msg))
 350     IPC_MESSAGE_HANDLER(FrameHostMsg_DidDropNavigation, OnDidDropNavigation)
 351     IPC_MESSAGE_HANDLER(FrameHostMsg_OpenURL, OnOpenURL)
 352     IPC_MESSAGE_HANDLER(FrameHostMsg_DocumentOnLoadCompleted,
 353                         OnDocumentOnLoadCompleted)
 354     IPC_MESSAGE_HANDLER(FrameHostMsg_BeforeUnload_ACK, OnBeforeUnloadACK)
 355     IPC_MESSAGE_HANDLER(FrameHostMsg_BeforeUnloadHandlersPresent,
 356                         OnBeforeUnloadHandlersPresent)
 357     IPC_MESSAGE_HANDLER(FrameHostMsg_UnloadHandlersPresent,
 358                         OnUnloadHandlersPresent)
 359     IPC_MESSAGE_HANDLER(FrameHostMsg_SwapOut_ACK, OnSwapOutACK)
 360     IPC_MESSAGE_HANDLER(FrameHostMsg_ContextMenu, OnContextMenu)
 361     IPC_MESSAGE_HANDLER(FrameHostMsg_JavaScriptExecuteResponse,
 362                         OnJavaScriptExecuteResponse)
 363     IPC_MESSAGE_HANDLER(FrameHostMsg_VisualStateResponse,
 364                         OnVisualStateResponse)
 365     IPC_MESSAGE_HANDLER_DELAY_REPLY(FrameHostMsg_RunJavaScriptMessage,
 366                                     OnRunJavaScriptMessage)
 367     IPC_MESSAGE_HANDLER_DELAY_REPLY(FrameHostMsg_RunBeforeUnloadConfirm,
 368                                     OnRunBeforeUnloadConfirm)
 369     IPC_MESSAGE_HANDLER(FrameHostMsg_DidAccessInitialDocument,
 370                         OnDidAccessInitialDocument)
 371     IPC_MESSAGE_HANDLER(FrameHostMsg_DidDisownOpener, OnDidDisownOpener)
 372     IPC_MESSAGE_HANDLER(FrameHostMsg_DidAssignPageId, OnDidAssignPageId)
 373     IPC_MESSAGE_HANDLER(FrameHostMsg_UpdateTitle, OnUpdateTitle)
 374     IPC_MESSAGE_HANDLER(FrameHostMsg_UpdateEncoding, OnUpdateEncoding)
 375     IPC_MESSAGE_HANDLER(FrameHostMsg_BeginNavigation,
 376                         OnBeginNavigation)
 377     IPC_MESSAGE_HANDLER(FrameHostMsg_DispatchLoad, OnDispatchLoad)
 378     IPC_MESSAGE_HANDLER(FrameHostMsg_TextSurroundingSelectionResponse,
 379                         OnTextSurroundingSelectionResponse)
 380     IPC_MESSAGE_HANDLER(AccessibilityHostMsg_Events, OnAccessibilityEvents)
 381     IPC_MESSAGE_HANDLER(AccessibilityHostMsg_LocationChanges,
 382                         OnAccessibilityLocationChanges)
 383     IPC_MESSAGE_HANDLER(AccessibilityHostMsg_FindInPageResult,
 384                         OnAccessibilityFindInPageResult)
 385     IPC_MESSAGE_HANDLER(FrameHostMsg_ToggleFullscreen, OnToggleFullscreen)
 386     // The following message is synthetic and doesn't come from RenderFrame, but
 387     // from RenderProcessHost.
 388     IPC_MESSAGE_HANDLER(FrameHostMsg_RenderProcessGone, OnRenderProcessGone)
 389 #if defined(OS_MACOSX) || defined(OS_ANDROID)
 390     IPC_MESSAGE_HANDLER(FrameHostMsg_ShowPopup, OnShowPopup)
 391     IPC_MESSAGE_HANDLER(FrameHostMsg_HidePopup, OnHidePopup)
 392 #endif
 393   IPC_END_MESSAGE_MAP()
 394
 395   // No further actions here, since we may have been deleted.
 396   return handled;
 397 }
 398
 399 void RenderFrameHostImpl::AccessibilitySetFocus(int object_id) {
 400   Send(new AccessibilityMsg_SetFocus(routing_id_, object_id));
 401 }
 402
 403 void RenderFrameHostImpl::AccessibilityDoDefaultAction(int object_id) {
 404   Send(new AccessibilityMsg_DoDefaultAction(routing_id_, object_id));
 405 }
 406
 407 void RenderFrameHostImpl::AccessibilityShowMenu(
 408     const gfx::Point& global_point) {
 409   RenderWidgetHostViewBase* view = static_cast<RenderWidgetHostViewBase*>(
 410       render_view_host_->GetView());
 411   if (view)
 412     view->AccessibilityShowMenu(global_point);
 413 }
 414
 415 void RenderFrameHostImpl::AccessibilityScrollToMakeVisible(
 416     int acc_obj_id, const gfx::Rect& subfocus) {
 417   Send(new AccessibilityMsg_ScrollToMakeVisible(
 418       routing_id_, acc_obj_id, subfocus));
 419 }
 420
 421 void RenderFrameHostImpl::AccessibilityScrollToPoint(
 422     int acc_obj_id, const gfx::Point& point) {
 423   Send(new AccessibilityMsg_ScrollToPoint(
 424       routing_id_, acc_obj_id, point));
 425 }
 426
 427 void RenderFrameHostImpl::AccessibilitySetTextSelection(
 428     int object_id, int start_offset, int end_offset) {
 429   Send(new AccessibilityMsg_SetTextSelection(
 430       routing_id_, object_id, start_offset, end_offset));
 431 }
 432
 433 void RenderFrameHostImpl::AccessibilitySetValue(
 434     int object_id, const base::string16& value) {
 435   Send(new AccessibilityMsg_SetValue(routing_id_, object_id, value));
 436 }
 437
 438 bool RenderFrameHostImpl::AccessibilityViewHasFocus() const {
 439   RenderWidgetHostView* view = render_view_host_->GetView();
 440   if (view)
 441     return view->HasFocus();
 442   return false;
 443 }
 444
 445 gfx::Rect RenderFrameHostImpl::AccessibilityGetViewBounds() const {
 446   RenderWidgetHostView* view = render_view_host_->GetView();
 447   if (view)
 448     return view->GetViewBounds();
 449   return gfx::Rect();
 450 }
 451
 452 gfx::Point RenderFrameHostImpl::AccessibilityOriginInScreen(
 453     const gfx::Rect& bounds) const {
 454   RenderWidgetHostViewBase* view = static_cast<RenderWidgetHostViewBase*>(
 455       render_view_host_->GetView());
 456   if (view)
 457     return view->AccessibilityOriginInScreen(bounds);
 458   return gfx::Point();
 459 }
 460
 461 void RenderFrameHostImpl::AccessibilityHitTest(const gfx::Point& point) {
 462   Send(new AccessibilityMsg_HitTest(routing_id_, point));
 463 }
 464
 465 void RenderFrameHostImpl::AccessibilitySetAccessibilityFocus(int acc_obj_id) {
 466   Send(new AccessibilityMsg_SetAccessibilityFocus(routing_id_, acc_obj_id));
 467 }
 468
 469 void RenderFrameHostImpl::AccessibilityFatalError() {
 470   browser_accessibility_manager_.reset(NULL);
 471   if (accessibility_reset_token_)
 472     return;
 473
 474   accessibility_reset_count_++;
 475   if (accessibility_reset_count_ >= kMaxAccessibilityResets) {
 476     Send(new AccessibilityMsg_FatalError(routing_id_));
 477   } else {
 478     accessibility_reset_token_ = g_next_accessibility_reset_token++;
 479     UMA_HISTOGRAM_COUNTS("Accessibility.FrameResetCount", 1);
 480     Send(new AccessibilityMsg_Reset(routing_id_, accessibility_reset_token_));
 481   }
 482 }
 483
 484 gfx::AcceleratedWidget
 485     RenderFrameHostImpl::AccessibilityGetAcceleratedWidget() {
 486   RenderWidgetHostViewBase* view = static_cast<RenderWidgetHostViewBase*>(
 487       render_view_host_->GetView());
 488   if (view)
 489     return view->AccessibilityGetAcceleratedWidget();
 490   return gfx::kNullAcceleratedWidget;
 491 }
 492
 493 gfx::NativeViewAccessible
 494     RenderFrameHostImpl::AccessibilityGetNativeViewAccessible() {
 495   RenderWidgetHostViewBase* view = static_cast<RenderWidgetHostViewBase*>(
 496       render_view_host_->GetView());
 497   if (view)
 498     return view->AccessibilityGetNativeViewAccessible();
 499   return NULL;
 500 }
 501
 502 BrowserAccessibilityManager* RenderFrameHostImpl::AccessibilityGetChildFrame(
 503     int accessibility_node_id) {
 504   RenderFrameHostImpl* child_frame =
 505       FrameAccessibility::GetInstance()->GetChild(this, accessibility_node_id);
 506   if (!child_frame || IsSameSiteInstance(child_frame))
 507     return nullptr;
 508
 509   return child_frame->GetOrCreateBrowserAccessibilityManager();
 510 }
 511
 512 void RenderFrameHostImpl::AccessibilityGetAllChildFrames(
 513     std::vector<BrowserAccessibilityManager*>* child_frames) {
 514   std::vector<RenderFrameHostImpl*> child_frame_hosts;
 515   FrameAccessibility::GetInstance()->GetAllChildFrames(
 516       this, &child_frame_hosts);
 517   for (size_t i = 0; i < child_frame_hosts.size(); ++i) {
 518     RenderFrameHostImpl* child_frame_host = child_frame_hosts[i];
 519     if (!child_frame_host || IsSameSiteInstance(child_frame_host))
 520       continue;
 521
 522     BrowserAccessibilityManager* manager =
 523         child_frame_host->GetOrCreateBrowserAccessibilityManager();
 524     if (manager)
 525       child_frames->push_back(manager);
 526   }
 527 }
 528
 529 BrowserAccessibility* RenderFrameHostImpl::AccessibilityGetParentFrame() {
 530   RenderFrameHostImpl* parent_frame = NULL;
 531   int parent_node_id = 0;
 532   if (!FrameAccessibility::GetInstance()->GetParent(
 533       this, &parent_frame, &parent_node_id)) {
 534     return NULL;
 535   }
 536
 537   // As a sanity check, make sure the frame we're going to return belongs
 538   // to the same BrowserContext.
 539   if (GetSiteInstance()->GetBrowserContext() !=
 540       parent_frame->GetSiteInstance()->GetBrowserContext()) {
 541     NOTREACHED();
 542     return NULL;
 543   }
 544
 545   BrowserAccessibilityManager* manager =
 546       parent_frame->browser_accessibility_manager();
 547   if (!manager)
 548     return NULL;
 549
 550   return manager->GetFromID(parent_node_id);
 551 }
 552
 553 bool RenderFrameHostImpl::CreateRenderFrame(int parent_routing_id,
 554                                             int proxy_routing_id) {
 555   TRACE_EVENT0("navigation", "RenderFrameHostImpl::CreateRenderFrame");
 556   DCHECK(!IsRenderFrameLive()) << "Creating frame twice";
 557
 558   // The process may (if we're sharing a process with another host that already
 559   // initialized it) or may not (we have our own process or the old process
 560   // crashed) have been initialized. Calling Init multiple times will be
 561   // ignored, so this is safe.
 562   if (!GetProcess()->Init())
 563     return false;
 564
 565   DCHECK(GetProcess()->HasConnection());
 566
 567   FrameMsg_NewFrame_WidgetParams widget_params;
 568   if (render_widget_host_) {
 569     widget_params.routing_id = render_widget_host_->GetRoutingID();
 570     widget_params.surface_id = render_widget_host_->surface_id();
 571     widget_params.hidden = render_widget_host_->is_hidden();
 572   } else {
 573     // MSG_ROUTING_NONE will prevent a new RenderWidget from being created in
 574     // the renderer process.
 575     widget_params.routing_id = MSG_ROUTING_NONE;
 576     widget_params.surface_id = 0;
 577     widget_params.hidden = true;
 578   }
 579
 580   Send(new FrameMsg_NewFrame(routing_id_, parent_routing_id, proxy_routing_id,
 581                              frame_tree_node()->current_replication_state(),
 582                              widget_params));
 583
 584   // The RenderWidgetHost takes ownership of its view. It is tied to the
 585   // lifetime of the current RenderProcessHost for this RenderFrameHost.
 586   if (render_widget_host_) {
 587     RenderWidgetHostView* rwhv =
 588         new RenderWidgetHostViewChildFrame(render_widget_host_.get());
 589     rwhv->Hide();
 590   }
 591
 592   if (proxy_routing_id != MSG_ROUTING_NONE) {
 593     RenderFrameProxyHost* proxy = RenderFrameProxyHost::FromID(
 594         GetProcess()->GetID(), proxy_routing_id);
 595     // We have also created a RenderFrameProxy in FrameMsg_NewFrame above, so
 596     // remember that.
 597     proxy->set_render_frame_proxy_created(true);
 598   }
 599
 600   // The renderer now has a RenderFrame for this RenderFrameHost.  Note that
 601   // this path is only used for out-of-process iframes.  Main frame RenderFrames
 602   // are created with their RenderView, and same-site iframes are created at the
 603   // time of OnCreateChildFrame.
 604   SetRenderFrameCreated(true);
 605
 606   return true;
 607 }
 608
 609 bool RenderFrameHostImpl::IsRenderFrameLive() {
 610   // RenderFrames are created for main frames at the same time as RenderViews,
 611   // so we rely on IsRenderViewLive.  For subframes, we keep track of each
 612   // RenderFrame individually with render_frame_created_.
 613   bool is_live = !GetParent() ?
 614       render_view_host_->IsRenderViewLive() :
 615       GetProcess()->HasConnection() && render_frame_created_;
 616
 617   // Sanity check: the RenderView should always be live if the RenderFrame is.
 618   DCHECK(!is_live || render_view_host_->IsRenderViewLive());
 619
 620   return is_live;
 621 }
 622
 623 void RenderFrameHostImpl::SetRenderFrameCreated(bool created) {
 624   // If the current status is different than the new status, the delegate
 625   // needs to be notified.
 626   if (delegate_ && (created != render_frame_created_)) {
 627     if (created)
 628       delegate_->RenderFrameCreated(this);
 629     else
 630       delegate_->RenderFrameDeleted(this);
 631   }
 632
 633   render_frame_created_ = created;
 634   if (created && render_widget_host_)
 635     render_widget_host_->InitForFrame();
 636 }
 637
 638 void RenderFrameHostImpl::Init() {
 639   GetProcess()->ResumeRequestsForView(routing_id_);
 640 }
 641
 642 void RenderFrameHostImpl::OnAddMessageToConsole(
 643     int32 level,
 644     const base::string16& message,
 645     int32 line_no,
 646     const base::string16& source_id) {
 647   if (delegate_->AddMessageToConsole(level, message, line_no, source_id))
 648     return;
 649
 650   // Pass through log level only on WebUI pages to limit console spew.
 651   const bool is_web_ui =
 652       HasWebUIScheme(delegate_->GetMainFrameLastCommittedURL());
 653   const int32 resolved_level = is_web_ui ? level : ::logging::LOG_INFO;
 654
 655   // LogMessages can be persisted so this shouldn't be logged in incognito mode.
 656   // This rule is not applied to WebUI pages, because source code of WebUI is a
 657   // part of Chrome source code, and we want to treat messages from WebUI the
 658   // same way as we treat log messages from native code.
 659   if (::logging::GetMinLogLevel() <= resolved_level &&
 660       (is_web_ui ||
 661        !GetSiteInstance()->GetBrowserContext()->IsOffTheRecord())) {
 662     logging::LogMessage("CONSOLE", line_no, resolved_level).stream()
 663         << "\"" << message << "\", source: " << source_id << " (" << line_no
 664         << ")";
 665   }
 666 }
 667
 668 void RenderFrameHostImpl::OnCreateChildFrame(int new_routing_id,
 669                                              const std::string& frame_name,
 670                                              SandboxFlags sandbox_flags) {
 671   // It is possible that while a new RenderFrameHost was committed, the
 672   // RenderFrame corresponding to this host sent an IPC message to create a
 673   // frame and it is delivered after this host is swapped out.
 674   // Ignore such messages, as we know this RenderFrameHost is going away.
 675   if (rfh_state_ != RenderFrameHostImpl::STATE_DEFAULT)
 676     return;
 677
 678   RenderFrameHostImpl* new_frame = frame_tree_->AddFrame(
 679       frame_tree_node_, GetProcess()->GetID(), new_routing_id, frame_name);
 680   if (!new_frame)
 681     return;
 682
 683   new_frame->frame_tree_node()->set_sandbox_flags(sandbox_flags);
 684
 685   // We know that the RenderFrame has been created in this case, immediately
 686   // after the CreateChildFrame IPC was sent.
 687   new_frame->SetRenderFrameCreated(true);
 688 }
 689
 690 void RenderFrameHostImpl::OnDetach() {
 691   frame_tree_->RemoveFrame(frame_tree_node_);
 692 }
 693
 694 void RenderFrameHostImpl::OnFrameFocused() {
 695   frame_tree_->SetFocusedFrame(frame_tree_node_);
 696 }
 697
 698 void RenderFrameHostImpl::OnOpenURL(const FrameHostMsg_OpenURL_Params& params) {
 699   OpenURL(params, GetSiteInstance());
 700 }
 701
 702 void RenderFrameHostImpl::OnDocumentOnLoadCompleted(
 703     FrameMsg_UILoadMetricsReportType::Value report_type,
 704     base::TimeTicks ui_timestamp) {
 705   if (report_type == FrameMsg_UILoadMetricsReportType::REPORT_LINK) {
 706     UMA_HISTOGRAM_CUSTOM_TIMES("Navigation.UI_OnLoadComplete.Link",
 707                                base::TimeTicks::Now() - ui_timestamp,
 708                                base::TimeDelta::FromMilliseconds(10),
 709                                base::TimeDelta::FromMinutes(10), 100);
 710   } else if (report_type == FrameMsg_UILoadMetricsReportType::REPORT_INTENT) {
 711     UMA_HISTOGRAM_CUSTOM_TIMES("Navigation.UI_OnLoadComplete.Intent",
 712                                base::TimeTicks::Now() - ui_timestamp,
 713                                base::TimeDelta::FromMilliseconds(10),
 714                                base::TimeDelta::FromMinutes(10), 100);
 715   }
 716   // This message is only sent for top-level frames. TODO(avi): when frame tree
 717   // mirroring works correctly, add a check here to enforce it.
 718   delegate_->DocumentOnLoadCompleted(this);
 719 }
 720
 721 void RenderFrameHostImpl::OnDidStartProvisionalLoadForFrame(
 722     const GURL& url,
 723     bool is_transition_navigation) {
 724   frame_tree_node_->navigator()->DidStartProvisionalLoad(
 725       this, url, is_transition_navigation);
 726 }
 727
 728 void RenderFrameHostImpl::OnDidFailProvisionalLoadWithError(
 729     const FrameHostMsg_DidFailProvisionalLoadWithError_Params& params) {
 730   frame_tree_node_->navigator()->DidFailProvisionalLoadWithError(this, params);
 731 }
 732
 733 void RenderFrameHostImpl::OnDidFailLoadWithError(
 734     const GURL& url,
 735     int error_code,
 736     const base::string16& error_description) {
 737   GURL validated_url(url);
 738   GetProcess()->FilterURL(false, &validated_url);
 739
 740   frame_tree_node_->navigator()->DidFailLoadWithError(
 741       this, validated_url, error_code, error_description);
 742 }
 743
 744 // Called when the renderer navigates.  For every frame loaded, we'll get this
 745 // notification containing parameters identifying the navigation.
 746 //
 747 // Subframes are identified by the page transition type.  For subframes loaded
 748 // as part of a wider page load, the page_id will be the same as for the top
 749 // level frame.  If the user explicitly requests a subframe navigation, we will
 750 // get a new page_id because we need to create a new navigation entry for that
 751 // action.
 752 void RenderFrameHostImpl::OnDidCommitProvisionalLoad(const IPC::Message& msg) {
 753   // Read the parameters out of the IPC message directly to avoid making another
 754   // copy when we filter the URLs.
 755   PickleIterator iter(msg);
 756   FrameHostMsg_DidCommitProvisionalLoad_Params validated_params;
 757   if (!IPC::ParamTraits<FrameHostMsg_DidCommitProvisionalLoad_Params>::
 758       Read(&msg, &iter, &validated_params))
 759     return;
 760   TRACE_EVENT1("navigation", "RenderFrameHostImpl::OnDidCommitProvisionalLoad",
 761                "url", validated_params.url.possibly_invalid_spec());
 762
 763   // If we're waiting for a cross-site beforeunload ack from this renderer and
 764   // we receive a Navigate message from the main frame, then the renderer was
 765   // navigating already and sent it before hearing the FrameMsg_Stop message.
 766   // We do not want to cancel the pending navigation in this case, since the
 767   // old page will soon be stopped.  Instead, treat this as a beforeunload ack
 768   // to allow the pending navigation to continue.
 769   if (is_waiting_for_beforeunload_ack_ &&
 770       unload_ack_is_for_navigation_ &&
 771       ui::PageTransitionIsMainFrame(validated_params.transition)) {
 772     base::TimeTicks approx_renderer_start_time = send_before_unload_start_time_;
 773     OnBeforeUnloadACK(true, approx_renderer_start_time, base::TimeTicks::Now());
 774     return;
 775   }
 776
 777   // If we're waiting for an unload ack from this renderer and we receive a
 778   // Navigate message, then the renderer was navigating before it received the
 779   // unload request.  It will either respond to the unload request soon or our
 780   // timer will expire.  Either way, we should ignore this message, because we
 781   // have already committed to closing this renderer.
 782   if (IsWaitingForUnloadACK())
 783     return;
 784
 785   if (validated_params.report_type ==
 786       FrameMsg_UILoadMetricsReportType::REPORT_LINK) {
 787     UMA_HISTOGRAM_CUSTOM_TIMES(
 788         "Navigation.UI_OnCommitProvisionalLoad.Link",
 789         base::TimeTicks::Now() - validated_params.ui_timestamp,
 790         base::TimeDelta::FromMilliseconds(10), base::TimeDelta::FromMinutes(10),
 791         100);
 792   } else if (validated_params.report_type ==
 793              FrameMsg_UILoadMetricsReportType::REPORT_INTENT) {
 794     UMA_HISTOGRAM_CUSTOM_TIMES(
 795         "Navigation.UI_OnCommitProvisionalLoad.Intent",
 796         base::TimeTicks::Now() - validated_params.ui_timestamp,
 797         base::TimeDelta::FromMilliseconds(10), base::TimeDelta::FromMinutes(10),
 798         100);
 799   }
 800
 801   RenderProcessHost* process = GetProcess();
 802
 803   // Attempts to commit certain off-limits URL should be caught more strictly
 804   // than our FilterURL checks below.  If a renderer violates this policy, it
 805   // should be killed.
 806   if (!CanCommitURL(validated_params.url)) {
 807     VLOG(1) << "Blocked URL " << validated_params.url.spec();
 808     validated_params.url = GURL(url::kAboutBlankURL);
 809     RecordAction(base::UserMetricsAction("CanCommitURL_BlockedAndKilled"));
 810     // Kills the process.
 811     process->ReceivedBadMessage();
 812   }
 813
 814   // Without this check, an evil renderer can trick the browser into creating
 815   // a navigation entry for a banned URL.  If the user clicks the back button
 816   // followed by the forward button (or clicks reload, or round-trips through
 817   // session restore, etc), we'll think that the browser commanded the
 818   // renderer to load the URL and grant the renderer the privileges to request
 819   // the URL.  To prevent this attack, we block the renderer from inserting
 820   // banned URLs into the navigation controller in the first place.
 821   process->FilterURL(false, &validated_params.url);
 822   process->FilterURL(true, &validated_params.referrer.url);
 823   for (std::vector<GURL>::iterator it(validated_params.redirects.begin());
 824       it != validated_params.redirects.end(); ++it) {
 825     process->FilterURL(false, &(*it));
 826   }
 827   process->FilterURL(true, &validated_params.searchable_form_url);
 828
 829   // Without this check, the renderer can trick the browser into using
 830   // filenames it can't access in a future session restore.
 831   if (!render_view_host_->CanAccessFilesOfPageState(
 832           validated_params.page_state)) {
 833     GetProcess()->ReceivedBadMessage();
 834     return;
 835   }
 836
 837   accessibility_reset_count_ = 0;
 838   frame_tree_node()->navigator()->DidNavigate(this, validated_params);
 839 }
 840
 841 void RenderFrameHostImpl::OnDidDropNavigation() {
 842   // At the end of Navigate(), the delegate's DidStartLoading is called to force
 843   // the spinner to start, even if the renderer didn't yet begin the load. If it
 844   // turns out that the renderer dropped the navigation, we need to turn off the
 845   // spinner.
 846   delegate_->DidStopLoading(this);
 847 }
 848
 849 RenderWidgetHostImpl* RenderFrameHostImpl::GetRenderWidgetHost() {
 850   if (render_widget_host_)
 851     return render_widget_host_.get();
 852
 853   // TODO(kenrb): When RenderViewHost no longer inherits RenderWidgetHost,
 854   // we can remove this fallback. Currently it is only used for the main
 855   // frame.
 856   if (!GetParent())
 857     return static_cast<RenderWidgetHostImpl*>(render_view_host_);
 858
 859   return nullptr;
 860 }
 861
 862 RenderWidgetHostView* RenderFrameHostImpl::GetView() {
 863   RenderFrameHostImpl* frame = this;
 864   while (frame) {
 865     if (frame->render_widget_host_)
 866       return frame->render_widget_host_->GetView();
 867     frame = static_cast<RenderFrameHostImpl*>(frame->GetParent());
 868   }
 869
 870   return render_view_host_->GetView();
 871 }
 872
 873 int RenderFrameHostImpl::GetEnabledBindings() {
 874   return render_view_host_->GetEnabledBindings();
 875 }
 876
 877 void RenderFrameHostImpl::OnCrossSiteResponse(
 878     const GlobalRequestID& global_request_id,
 879     scoped_ptr<CrossSiteTransferringRequest> cross_site_transferring_request,
 880     const std::vector<GURL>& transfer_url_chain,
 881     const Referrer& referrer,
 882     ui::PageTransition page_transition,
 883     bool should_replace_current_entry) {
 884   frame_tree_node_->render_manager()->OnCrossSiteResponse(
 885       this, global_request_id, cross_site_transferring_request.Pass(),
 886       transfer_url_chain, referrer, page_transition,
 887       should_replace_current_entry);
 888 }
 889
 890 void RenderFrameHostImpl::OnDeferredAfterResponseStarted(
 891     const GlobalRequestID& global_request_id,
 892     const TransitionLayerData& transition_data) {
 893   frame_tree_node_->render_manager()->OnDeferredAfterResponseStarted(
 894       global_request_id, this);
 895
 896   if (GetParent() || !delegate_->WillHandleDeferAfterResponseStarted())
 897     frame_tree_node_->render_manager()->ResumeResponseDeferredAtStart();
 898   else
 899     delegate_->DidDeferAfterResponseStarted(transition_data);
 900 }
 901
 902 void RenderFrameHostImpl::SwapOut(
 903     RenderFrameProxyHost* proxy,
 904     bool is_loading) {
 905   // The end of this event is in OnSwapOutACK when the RenderFrame has completed
 906   // the operation and sends back an IPC message.
 907   // The trace event may not end properly if the ACK times out.  We expect this
 908   // to be fixed when RenderViewHostImpl::OnSwapOut moves to RenderFrameHost.
 909   TRACE_EVENT_ASYNC_BEGIN0("navigation", "RenderFrameHostImpl::SwapOut", this);
 910
 911   // If this RenderFrameHost is not in the default state, it must have already
 912   // gone through this, therefore just return.
 913   if (rfh_state_ != RenderFrameHostImpl::STATE_DEFAULT) {
 914     NOTREACHED() << "RFH should be in default state when calling SwapOut.";
 915     return;
 916   }
 917
 918   SetState(RenderFrameHostImpl::STATE_PENDING_SWAP_OUT);
 919   swapout_event_monitor_timeout_->Start(
 920       base::TimeDelta::FromMilliseconds(RenderViewHostImpl::kUnloadTimeoutMS));
 921
 922   // There may be no proxy if there are no active views in the process.
 923   int proxy_routing_id = MSG_ROUTING_NONE;
 924   FrameReplicationState replication_state;
 925   if (proxy) {
 926     set_render_frame_proxy_host(proxy);
 927     proxy_routing_id = proxy->GetRoutingID();
 928     replication_state = proxy->frame_tree_node()->current_replication_state();
 929   }
 930
 931   if (IsRenderFrameLive()) {
 932     Send(new FrameMsg_SwapOut(routing_id_, proxy_routing_id, is_loading,
 933                               replication_state));
 934   }
 935
 936   if (!GetParent())
 937     delegate_->SwappedOut(this);
 938 }
 939
 940 void RenderFrameHostImpl::OnBeforeUnloadACK(
 941     bool proceed,
 942     const base::TimeTicks& renderer_before_unload_start_time,
 943     const base::TimeTicks& renderer_before_unload_end_time) {
 944   TRACE_EVENT_ASYNC_END0(
 945       "navigation", "RenderFrameHostImpl::BeforeUnload", this);
 946   DCHECK(!GetParent());
 947   // If this renderer navigated while the beforeunload request was in flight, we
 948   // may have cleared this state in OnDidCommitProvisionalLoad, in which case we
 949   // can ignore this message.
 950   // However renderer might also be swapped out but we still want to proceed
 951   // with navigation, otherwise it would block future navigations. This can
 952   // happen when pending cross-site navigation is canceled by a second one just
 953   // before OnDidCommitProvisionalLoad while current RVH is waiting for commit
 954   // but second navigation is started from the beginning.
 955   if (!is_waiting_for_beforeunload_ack_) {
 956     return;
 957   }
 958   DCHECK(!send_before_unload_start_time_.is_null());
 959
 960   // Sets a default value for before_unload_end_time so that the browser
 961   // survives a hacked renderer.
 962   base::TimeTicks before_unload_end_time = renderer_before_unload_end_time;
 963   if (!renderer_before_unload_start_time.is_null() &&
 964       !renderer_before_unload_end_time.is_null()) {
 965     // When passing TimeTicks across process boundaries, we need to compensate
 966     // for any skew between the processes. Here we are converting the
 967     // renderer's notion of before_unload_end_time to TimeTicks in the browser
 968     // process. See comments in inter_process_time_ticks_converter.h for more.
 969     base::TimeTicks receive_before_unload_ack_time = base::TimeTicks::Now();
 970     InterProcessTimeTicksConverter converter(
 971         LocalTimeTicks::FromTimeTicks(send_before_unload_start_time_),
 972         LocalTimeTicks::FromTimeTicks(receive_before_unload_ack_time),
 973         RemoteTimeTicks::FromTimeTicks(renderer_before_unload_start_time),
 974         RemoteTimeTicks::FromTimeTicks(renderer_before_unload_end_time));
 975     LocalTimeTicks browser_before_unload_end_time =
 976         converter.ToLocalTimeTicks(
 977             RemoteTimeTicks::FromTimeTicks(renderer_before_unload_end_time));
 978     before_unload_end_time = browser_before_unload_end_time.ToTimeTicks();
 979
 980     // Collect UMA on the inter-process skew.
 981     bool is_skew_additive = false;
 982     if (converter.IsSkewAdditiveForMetrics()) {
 983       is_skew_additive = true;
 984       base::TimeDelta skew = converter.GetSkewForMetrics();
 985       if (skew >= base::TimeDelta()) {
 986         UMA_HISTOGRAM_TIMES(
 987             "InterProcessTimeTicks.BrowserBehind_RendererToBrowser", skew);
 988       } else {
 989         UMA_HISTOGRAM_TIMES(
 990             "InterProcessTimeTicks.BrowserAhead_RendererToBrowser", -skew);
 991       }
 992     }
 993     UMA_HISTOGRAM_BOOLEAN(
 994         "InterProcessTimeTicks.IsSkewAdditive_RendererToBrowser",
 995         is_skew_additive);
 996
 997     base::TimeDelta on_before_unload_overhead_time =
 998         (receive_before_unload_ack_time - send_before_unload_start_time_) -
 999         (renderer_before_unload_end_time - renderer_before_unload_start_time);
1000     UMA_HISTOGRAM_TIMES("Navigation.OnBeforeUnloadOverheadTime",
1001                         on_before_unload_overhead_time);
1002
1003     frame_tree_node_->navigator()->LogBeforeUnloadTime(
1004         renderer_before_unload_start_time, renderer_before_unload_end_time);
1005   }
1006   // Resets beforeunload waiting state.
1007   is_waiting_for_beforeunload_ack_ = false;
1008   render_view_host_->decrement_in_flight_event_count();
1009   render_view_host_->StopHangMonitorTimeout();
1010   send_before_unload_start_time_ = base::TimeTicks();
1011
1012   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
1013       switches::kEnableBrowserSideNavigation)) {
1014     // TODO(clamy): see if before_unload_end_time should be transmitted to the
1015     // Navigator.
1016     frame_tree_node_->navigator()->OnBeforeUnloadACK(
1017         frame_tree_node_, proceed);
1018   } else {
1019     frame_tree_node_->render_manager()->OnBeforeUnloadACK(
1020         unload_ack_is_for_navigation_, proceed,
1021         before_unload_end_time);
1022   }
1023
1024   // If canceled, notify the delegate to cancel its pending navigation entry.
1025   if (!proceed)
1026     render_view_host_->GetDelegate()->DidCancelLoading();
1027 }
1028
1029 bool RenderFrameHostImpl::IsWaitingForBeforeUnloadACK() const {
1030   if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
1031       switches::kEnableBrowserSideNavigation)) {
1032     return is_waiting_for_beforeunload_ack_;
1033   }
1034   return frame_tree_node_->navigator()->IsWaitingForBeforeUnloadACK(
1035       frame_tree_node_);
1036 }
1037
1038 bool RenderFrameHostImpl::IsWaitingForUnloadACK() const {
1039   return render_view_host_->is_waiting_for_close_ack_ ||
1040       rfh_state_ == STATE_PENDING_SWAP_OUT;
1041 }
1042
1043 bool RenderFrameHostImpl::SuddenTerminationAllowed() const {
1044   return override_sudden_termination_status_ ||
1045       (!has_beforeunload_handlers_ && !has_unload_handlers_);
1046 }
1047
1048 void RenderFrameHostImpl::OnSwapOutACK() {
1049   OnSwappedOut();
1050 }
1051
1052 void RenderFrameHostImpl::OnRenderProcessGone(int status, int exit_code) {
1053   if (frame_tree_node_->IsMainFrame()) {
1054     // Keep the termination status so we can get at it later when we
1055     // need to know why it died.
1056     render_view_host_->render_view_termination_status_ =
1057         static_cast<base::TerminationStatus>(status);
1058   }
1059
1060   // Reset frame tree state associated with this process.  This must happen
1061   // before RenderViewTerminated because observers expect the subframes of any
1062   // affected frames to be cleared first.
1063   // Note: When a RenderFrameHost is swapped out there is a different one
1064   // which is the current host. In this case, the FrameTreeNode state must
1065   // not be reset.
1066   if (!is_swapped_out())
1067     frame_tree_node_->ResetForNewProcess();
1068
1069   // Reset state for the current RenderFrameHost once the FrameTreeNode has been
1070   // reset.
1071   SetRenderFrameCreated(false);
1072   InvalidateMojoConnection();
1073
1074   if (frame_tree_node_->IsMainFrame()) {
1075     // RenderViewHost/RenderWidgetHost needs to reset some stuff.
1076     render_view_host_->RendererExited(
1077         render_view_host_->render_view_termination_status_, exit_code);
1078
1079     render_view_host_->delegate_->RenderViewTerminated(
1080         render_view_host_, static_cast<base::TerminationStatus>(status),
1081         exit_code);
1082   }
1083 }
1084
1085 void RenderFrameHostImpl::OnSwappedOut() {
1086   // Ignore spurious swap out ack.
1087   if (rfh_state_ != STATE_PENDING_SWAP_OUT)
1088     return;
1089
1090   TRACE_EVENT_ASYNC_END0("navigation", "RenderFrameHostImpl::SwapOut", this);
1091   swapout_event_monitor_timeout_->Stop();
1092
1093   if (frame_tree_node_->render_manager()->DeleteFromPendingList(this)) {
1094     // We are now deleted.
1095     return;
1096   }
1097
1098   // If this RFH wasn't pending deletion, then it is now swapped out.
1099   SetState(RenderFrameHostImpl::STATE_SWAPPED_OUT);
1100 }
1101
1102 void RenderFrameHostImpl::OnContextMenu(const ContextMenuParams& params) {
1103   // Validate the URLs in |params|.  If the renderer can't request the URLs
1104   // directly, don't show them in the context menu.
1105   ContextMenuParams validated_params(params);
1106   RenderProcessHost* process = GetProcess();
1107
1108   // We don't validate |unfiltered_link_url| so that this field can be used
1109   // when users want to copy the original link URL.
1110   process->FilterURL(true, &validated_params.link_url);
1111   process->FilterURL(true, &validated_params.src_url);
1112   process->FilterURL(false, &validated_params.page_url);
1113   process->FilterURL(true, &validated_params.frame_url);
1114
1115   delegate_->ShowContextMenu(this, validated_params);
1116 }
1117
1118 void RenderFrameHostImpl::OnJavaScriptExecuteResponse(
1119     int id, const base::ListValue& result) {
1120   const base::Value* result_value;
1121   if (!result.Get(0, &result_value)) {
1122     // Programming error or rogue renderer.
1123     NOTREACHED() << "Got bad arguments for OnJavaScriptExecuteResponse";
1124     return;
1125   }
1126
1127   std::map<int, JavaScriptResultCallback>::iterator it =
1128       javascript_callbacks_.find(id);
1129   if (it != javascript_callbacks_.end()) {
1130     it->second.Run(result_value);
1131     javascript_callbacks_.erase(it);
1132   } else {
1133     NOTREACHED() << "Received script response for unknown request";
1134   }
1135 }
1136
1137 void RenderFrameHostImpl::OnVisualStateResponse(uint64 id) {
1138   auto it = visual_state_callbacks_.find(id);
1139   if (it != visual_state_callbacks_.end()) {
1140     it->second.Run(true);
1141     visual_state_callbacks_.erase(it);
1142   } else {
1143     NOTREACHED() << "Received script response for unknown request";
1144   }
1145 }
1146
1147 void RenderFrameHostImpl::OnRunJavaScriptMessage(
1148     const base::string16& message,
1149     const base::string16& default_prompt,
1150     const GURL& frame_url,
1151     JavaScriptMessageType type,
1152     IPC::Message* reply_msg) {
1153   // While a JS message dialog is showing, tabs in the same process shouldn't
1154   // process input events.
1155   GetProcess()->SetIgnoreInputEvents(true);
1156   render_view_host_->StopHangMonitorTimeout();
1157   delegate_->RunJavaScriptMessage(this, message, default_prompt,
1158                                   frame_url, type, reply_msg);
1159 }
1160
1161 void RenderFrameHostImpl::OnRunBeforeUnloadConfirm(
1162     const GURL& frame_url,
1163     const base::string16& message,
1164     bool is_reload,
1165     IPC::Message* reply_msg) {
1166   // While a JS beforeunload dialog is showing, tabs in the same process
1167   // shouldn't process input events.
1168   GetProcess()->SetIgnoreInputEvents(true);
1169   render_view_host_->StopHangMonitorTimeout();
1170   delegate_->RunBeforeUnloadConfirm(this, message, is_reload, reply_msg);
1171 }
1172
1173 void RenderFrameHostImpl::OnTextSurroundingSelectionResponse(
1174     const base::string16& content,
1175     size_t start_offset,
1176     size_t end_offset) {
1177   render_view_host_->OnTextSurroundingSelectionResponse(
1178       content, start_offset, end_offset);
1179 }
1180
1181 void RenderFrameHostImpl::OnDidAccessInitialDocument() {
1182   delegate_->DidAccessInitialDocument();
1183 }
1184
1185 void RenderFrameHostImpl::OnDidDisownOpener() {
1186   // This message is only sent for top-level frames. TODO(avi): when frame tree
1187   // mirroring works correctly, add a check here to enforce it.
1188   delegate_->DidDisownOpener(this);
1189 }
1190
1191 void RenderFrameHostImpl::OnDidAssignPageId(int32 page_id) {
1192   // Update the RVH's current page ID so that future IPCs from the renderer
1193   // correspond to the new page.
1194   render_view_host_->page_id_ = page_id;
1195 }
1196
1197 void RenderFrameHostImpl::OnUpdateTitle(
1198     const base::string16& title,
1199     blink::WebTextDirection title_direction) {
1200   // This message is only sent for top-level frames. TODO(avi): when frame tree
1201   // mirroring works correctly, add a check here to enforce it.
1202   if (title.length() > kMaxTitleChars) {
1203     NOTREACHED() << "Renderer sent too many characters in title.";
1204     return;
1205   }
1206
1207   delegate_->UpdateTitle(this, render_view_host_->page_id_, title,
1208                          WebTextDirectionToChromeTextDirection(
1209                              title_direction));
1210 }
1211
1212 void RenderFrameHostImpl::OnUpdateEncoding(const std::string& encoding_name) {
1213   // This message is only sent for top-level frames. TODO(avi): when frame tree
1214   // mirroring works correctly, add a check here to enforce it.
1215   delegate_->UpdateEncoding(this, encoding_name);
1216 }
1217
1218 void RenderFrameHostImpl::OnBeginNavigation(
1219     const CommonNavigationParams& common_params,
1220     const BeginNavigationParams& begin_params,
1221     scoped_refptr<ResourceRequestBody> body) {
1222   CHECK(base::CommandLine::ForCurrentProcess()->HasSwitch(
1223       switches::kEnableBrowserSideNavigation));
1224   frame_tree_node()->navigator()->OnBeginNavigation(
1225       frame_tree_node(), common_params, begin_params, body);
1226 }
1227
1228 void RenderFrameHostImpl::OnDispatchLoad() {
1229   CHECK(base::CommandLine::ForCurrentProcess()->HasSwitch(
1230       switches::kSitePerProcess));
1231   // Only frames with an out-of-process parent frame should be sending this
1232   // message.
1233   RenderFrameProxyHost* proxy =
1234       frame_tree_node()->render_manager()->GetProxyToParent();
1235   if (!proxy) {
1236     GetProcess()->ReceivedBadMessage();
1237     return;
1238   }
1239
1240   proxy->Send(new FrameMsg_DispatchLoad(proxy->GetRoutingID()));
1241 }
1242
1243 void RenderFrameHostImpl::OnAccessibilityEvents(
1244     const std::vector<AccessibilityHostMsg_EventParams>& params,
1245     int reset_token) {
1246   // Don't process this IPC if either we're waiting on a reset and this
1247   // IPC doesn't have the matching token ID, or if we're not waiting on a
1248   // reset but this message includes a reset token.
1249   if (accessibility_reset_token_ != reset_token) {
1250     Send(new AccessibilityMsg_Events_ACK(routing_id_));
1251     return;
1252   }
1253   accessibility_reset_token_ = 0;
1254
1255   RenderWidgetHostViewBase* view = static_cast<RenderWidgetHostViewBase*>(
1256       render_view_host_->GetView());
1257
1258   AccessibilityMode accessibility_mode = delegate_->GetAccessibilityMode();
1259   if ((accessibility_mode != AccessibilityModeOff) && view &&
1260       RenderFrameHostImpl::IsRFHStateActive(rfh_state())) {
1261     if (accessibility_mode & AccessibilityModeFlagPlatform) {
1262       GetOrCreateBrowserAccessibilityManager();
1263       if (browser_accessibility_manager_)
1264         browser_accessibility_manager_->OnAccessibilityEvents(params);
1265     }
1266
1267     if (browser_accessibility_manager_) {
1268       // Get the frame routing ids from out-of-process iframes and
1269       // browser plugin instance ids from guests and update the mappings in
1270       // FrameAccessibility.
1271       for (size_t i = 0; i < params.size(); ++i) {
1272         const AccessibilityHostMsg_EventParams& param = params[i];
1273         UpdateCrossProcessIframeAccessibility(
1274             param.node_to_frame_routing_id_map);
1275         UpdateGuestFrameAccessibility(
1276             param.node_to_browser_plugin_instance_id_map);
1277       }
1278     }
1279
1280     // Send the updates to the automation extension API.
1281     std::vector<AXEventNotificationDetails> details;
1282     details.reserve(params.size());
1283     for (size_t i = 0; i < params.size(); ++i) {
1284       const AccessibilityHostMsg_EventParams& param = params[i];
1285       AXEventNotificationDetails detail(param.update.node_id_to_clear,
1286                                         param.update.nodes,
1287                                         param.event_type,
1288                                         param.id,
1289                                         GetProcess()->GetID(),
1290                                         routing_id_);
1291       details.push_back(detail);
1292     }
1293
1294     delegate_->AccessibilityEventReceived(details);
1295   }
1296
1297   // Always send an ACK or the renderer can be in a bad state.
1298   Send(new AccessibilityMsg_Events_ACK(routing_id_));
1299
1300   // The rest of this code is just for testing; bail out if we're not
1301   // in that mode.
1302   if (accessibility_testing_callback_.is_null())
1303     return;
1304
1305   for (size_t i = 0; i < params.size(); i++) {
1306     const AccessibilityHostMsg_EventParams& param = params[i];
1307     if (static_cast<int>(param.event_type) < 0)
1308       continue;
1309
1310     if (!ax_tree_for_testing_) {
1311       if (browser_accessibility_manager_) {
1312         ax_tree_for_testing_.reset(new ui::AXTree(
1313             browser_accessibility_manager_->SnapshotAXTreeForTesting()));
1314       } else {
1315         ax_tree_for_testing_.reset(new ui::AXTree());
1316         CHECK(ax_tree_for_testing_->Unserialize(param.update))
1317             << ax_tree_for_testing_->error();
1318       }
1319     } else {
1320       CHECK(ax_tree_for_testing_->Unserialize(param.update))
1321           << ax_tree_for_testing_->error();
1322     }
1323     accessibility_testing_callback_.Run(param.event_type, param.id);
1324   }
1325 }
1326
1327 void RenderFrameHostImpl::OnAccessibilityLocationChanges(
1328     const std::vector<AccessibilityHostMsg_LocationChangeParams>& params) {
1329   if (accessibility_reset_token_)
1330     return;
1331
1332   RenderWidgetHostViewBase* view = static_cast<RenderWidgetHostViewBase*>(
1333       render_view_host_->GetView());
1334   if (view && RenderFrameHostImpl::IsRFHStateActive(rfh_state())) {
1335     AccessibilityMode accessibility_mode = delegate_->GetAccessibilityMode();
1336     if (accessibility_mode & AccessibilityModeFlagPlatform) {
1337       BrowserAccessibilityManager* manager =
1338           GetOrCreateBrowserAccessibilityManager();
1339       if (manager)
1340         manager->OnLocationChanges(params);
1341     }
1342     // TODO(aboxhall): send location change events to web contents observers too
1343   }
1344 }
1345
1346 void RenderFrameHostImpl::OnAccessibilityFindInPageResult(
1347     const AccessibilityHostMsg_FindInPageResultParams& params) {
1348   AccessibilityMode accessibility_mode = delegate_->GetAccessibilityMode();
1349   if (accessibility_mode & AccessibilityModeFlagPlatform) {
1350     BrowserAccessibilityManager* manager =
1351         GetOrCreateBrowserAccessibilityManager();
1352     if (manager) {
1353       manager->OnFindInPageResult(
1354           params.request_id, params.match_index, params.start_id,
1355           params.start_offset, params.end_id, params.end_offset);
1356     }
1357   }
1358 }
1359
1360 void RenderFrameHostImpl::OnToggleFullscreen(bool enter_fullscreen) {
1361   if (enter_fullscreen)
1362     delegate_->EnterFullscreenMode(GetLastCommittedURL().GetOrigin());
1363   else
1364     delegate_->ExitFullscreenMode();
1365
1366   // The previous call might change the fullscreen state. We need to make sure
1367   // the renderer is aware of that, which is done via the resize message.
1368   render_view_host_->WasResized();
1369 }
1370
1371 void RenderFrameHostImpl::OnBeforeUnloadHandlersPresent(bool present) {
1372   has_beforeunload_handlers_ = present;
1373 }
1374
1375 void RenderFrameHostImpl::OnUnloadHandlersPresent(bool present) {
1376   has_unload_handlers_ = present;
1377 }
1378
1379 #if defined(OS_MACOSX) || defined(OS_ANDROID)
1380 void RenderFrameHostImpl::OnShowPopup(
1381     const FrameHostMsg_ShowPopup_Params& params) {
1382   RenderViewHostDelegateView* view =
1383       render_view_host_->delegate_->GetDelegateView();
1384   if (view) {
1385     view->ShowPopupMenu(this,
1386                         params.bounds,
1387                         params.item_height,
1388                         params.item_font_size,
1389                         params.selected_item,
1390                         params.popup_items,
1391                         params.right_aligned,
1392                         params.allow_multiple_selection);
1393   }
1394 }
1395
1396 void RenderFrameHostImpl::OnHidePopup() {
1397   RenderViewHostDelegateView* view =
1398       render_view_host_->delegate_->GetDelegateView();
1399   if (view)
1400     view->HidePopupMenu();
1401 }
1402 #endif
1403
1404 #if defined(ENABLE_MEDIA_MOJO_RENDERER)
1405 static void CreateMediaRendererService(
1406     mojo::InterfaceRequest<mojo::MediaRenderer> request) {
1407   media::MojoRendererService* service = new media::MojoRendererService();
1408   mojo::BindToRequest(service, &request);
1409 }
1410 #endif
1411
1412 void RenderFrameHostImpl::RegisterMojoServices() {
1413   GeolocationServiceContext* geolocation_service_context =
1414       delegate_ ? delegate_->GetGeolocationServiceContext() : NULL;
1415   if (geolocation_service_context) {
1416     // TODO(creis): Bind process ID here so that GeolocationServiceImpl
1417     // can perform permissions checks once site isolation is complete.
1418     // crbug.com/426384
1419     GetServiceRegistry()->AddService<GeolocationService>(
1420         base::Bind(&GeolocationServiceContext::CreateService,
1421                    base::Unretained(geolocation_service_context),
1422                    base::Bind(&RenderFrameHostImpl::DidUseGeolocationPermission,
1423                               base::Unretained(this))));
1424   }
1425
1426   if (!permission_service_context_)
1427     permission_service_context_.reset(new PermissionServiceContext(this));
1428
1429   GetServiceRegistry()->AddService<PermissionService>(
1430       base::Bind(&PermissionServiceContext::CreateService,
1431                  base::Unretained(permission_service_context_.get())));
1432
1433   GetServiceRegistry()->AddService<presentation::PresentationService>(
1434       base::Bind(&PresentationServiceImpl::CreateMojoService,
1435                  base::Unretained(this)));
1436
1437 #if defined(ENABLE_MEDIA_MOJO_RENDERER)
1438   GetServiceRegistry()->AddService<mojo::MediaRenderer>(
1439       base::Bind(&CreateMediaRendererService));
1440 #endif
1441 }
1442
1443 void RenderFrameHostImpl::SetState(RenderFrameHostImplState rfh_state) {
1444   // Only main frames should be swapped out and retained inside a proxy host.
1445   if (rfh_state == STATE_SWAPPED_OUT)
1446     CHECK(!GetParent());
1447
1448   // We update the number of RenderFrameHosts in a SiteInstance when the swapped
1449   // out status of a RenderFrameHost gets flipped to/from active.
1450   if (!IsRFHStateActive(rfh_state_) && IsRFHStateActive(rfh_state))
1451     GetSiteInstance()->increment_active_frame_count();
1452   else if (IsRFHStateActive(rfh_state_) && !IsRFHStateActive(rfh_state))
1453     GetSiteInstance()->decrement_active_frame_count();
1454
1455   // The active and swapped out state of the RVH is determined by its main
1456   // frame, since subframes should have their own widgets.
1457   if (frame_tree_node_->IsMainFrame()) {
1458     render_view_host_->set_is_active(IsRFHStateActive(rfh_state));
1459     render_view_host_->set_is_swapped_out(rfh_state == STATE_SWAPPED_OUT);
1460   }
1461
1462   // Whenever we change the RFH state to and from active or swapped out state,
1463   // we should not be waiting for beforeunload or close acks.  We clear them
1464   // here to be safe, since they can cause navigations to be ignored in
1465   // OnDidCommitProvisionalLoad.
1466   // TODO(creis): Move is_waiting_for_beforeunload_ack_ into the state machine.
1467   if (rfh_state == STATE_DEFAULT ||
1468       rfh_state == STATE_SWAPPED_OUT ||
1469       rfh_state_ == STATE_DEFAULT ||
1470       rfh_state_ == STATE_SWAPPED_OUT) {
1471     if (is_waiting_for_beforeunload_ack_) {
1472       is_waiting_for_beforeunload_ack_ = false;
1473       render_view_host_->decrement_in_flight_event_count();
1474       render_view_host_->StopHangMonitorTimeout();
1475     }
1476     send_before_unload_start_time_ = base::TimeTicks();
1477     render_view_host_->is_waiting_for_close_ack_ = false;
1478   }
1479   rfh_state_ = rfh_state;
1480 }
1481
1482 bool RenderFrameHostImpl::CanCommitURL(const GURL& url) {
1483   // TODO(creis): We should also check for WebUI pages here.  Also, when the
1484   // out-of-process iframes implementation is ready, we should check for
1485   // cross-site URLs that are not allowed to commit in this process.
1486
1487   // Give the client a chance to disallow URLs from committing.
1488   return GetContentClient()->browser()->CanCommitURL(GetProcess(), url);
1489 }
1490
1491 void RenderFrameHostImpl::Navigate(const FrameMsg_Navigate_Params& params) {
1492   TRACE_EVENT0("navigation", "RenderFrameHostImpl::Navigate");
1493   // Browser plugin guests are not allowed to navigate outside web-safe schemes,
1494   // so do not grant them the ability to request additional URLs.
1495   if (!GetProcess()->IsIsolatedGuest()) {
1496     ChildProcessSecurityPolicyImpl::GetInstance()->GrantRequestURL(
1497         GetProcess()->GetID(), params.common_params.url);
1498     if (params.common_params.url.SchemeIs(url::kDataScheme) &&
1499         params.common_params.base_url_for_data_url.SchemeIs(url::kFileScheme)) {
1500       // If 'data:' is used, and we have a 'file:' base url, grant access to
1501       // local files.
1502       ChildProcessSecurityPolicyImpl::GetInstance()->GrantRequestURL(
1503           GetProcess()->GetID(), params.common_params.base_url_for_data_url);
1504     }
1505   }
1506
1507   // We may be returning to an existing NavigationEntry that had been granted
1508   // file access.  If this is a different process, we will need to grant the
1509   // access again.  The files listed in the page state are validated when they
1510   // are received from the renderer to prevent abuse.
1511   if (params.commit_params.page_state.IsValid()) {
1512     render_view_host_->GrantFileAccessFromPageState(
1513         params.commit_params.page_state);
1514   }
1515
1516   // Only send the message if we aren't suspended at the start of a cross-site
1517   // request.
1518   if (navigations_suspended_) {
1519     // Shouldn't be possible to have a second navigation while suspended, since
1520     // navigations will only be suspended during a cross-site request.  If a
1521     // second navigation occurs, RenderFrameHostManager will cancel this pending
1522     // RFH and create a new pending RFH.
1523     DCHECK(!suspended_nav_params_.get());
1524     suspended_nav_params_.reset(new FrameMsg_Navigate_Params(params));
1525   } else {
1526     // Get back to a clean state, in case we start a new navigation without
1527     // completing a RFH swap or unload handler.
1528     SetState(RenderFrameHostImpl::STATE_DEFAULT);
1529
1530     Send(new FrameMsg_Navigate(routing_id_, params));
1531   }
1532
1533   // Force the throbber to start. We do this because Blink's "started
1534   // loading" message will be received asynchronously from the UI of the
1535   // browser. But we want to keep the throbber in sync with what's happening
1536   // in the UI. For example, we want to start throbbing immediately when the
1537   // user navigates even if the renderer is delayed. There is also an issue
1538   // with the throbber starting because the WebUI (which controls whether the
1539   // favicon is displayed) happens synchronously. If the start loading
1540   // messages was asynchronous, then the default favicon would flash in.
1541   //
1542   // Blink doesn't send throb notifications for JavaScript URLs, so we
1543   // don't want to either.
1544   if (!params.common_params.url.SchemeIs(url::kJavaScriptScheme))
1545     delegate_->DidStartLoading(this, true);
1546 }
1547
1548 void RenderFrameHostImpl::NavigateToURL(const GURL& url) {
1549   FrameMsg_Navigate_Params params;
1550   params.common_params.url = url;
1551   params.common_params.transition = ui::PAGE_TRANSITION_LINK;
1552   params.common_params.navigation_type = FrameMsg_Navigate_Type::NORMAL;
1553   params.commit_params.browser_navigation_start = base::TimeTicks::Now();
1554   params.page_id = -1;
1555   params.pending_history_list_offset = -1;
1556   params.current_history_list_offset = -1;
1557   params.current_history_list_length = 0;
1558   Navigate(params);
1559 }
1560
1561 void RenderFrameHostImpl::OpenURL(const FrameHostMsg_OpenURL_Params& params,
1562                                   SiteInstance* source_site_instance) {
1563   GURL validated_url(params.url);
1564   GetProcess()->FilterURL(false, &validated_url);
1565
1566   TRACE_EVENT1("navigation", "RenderFrameHostImpl::OpenURL", "url",
1567                validated_url.possibly_invalid_spec());
1568   frame_tree_node_->navigator()->RequestOpenURL(
1569       this, validated_url, source_site_instance, params.referrer,
1570       params.disposition, params.should_replace_current_entry,
1571       params.user_gesture);
1572 }
1573
1574 void RenderFrameHostImpl::Stop() {
1575   Send(new FrameMsg_Stop(routing_id_));
1576 }
1577
1578 void RenderFrameHostImpl::DispatchBeforeUnload(bool for_navigation) {
1579   // TODO(creis): Support beforeunload on subframes.  For now just pretend that
1580   // the handler ran and allowed the navigation to proceed.
1581   if (GetParent() || !IsRenderFrameLive()) {
1582     // We don't have a live renderer, so just skip running beforeunload.
1583     if (base::CommandLine::ForCurrentProcess()->HasSwitch(
1584         switches::kEnableBrowserSideNavigation)) {
1585       frame_tree_node_->navigator()->OnBeforeUnloadACK(
1586           frame_tree_node_, true);
1587     } else {
1588       frame_tree_node_->render_manager()->OnBeforeUnloadACK(
1589           for_navigation, true, base::TimeTicks::Now());
1590     }
1591     return;
1592   }
1593   TRACE_EVENT_ASYNC_BEGIN0(
1594       "navigation", "RenderFrameHostImpl::BeforeUnload", this);
1595
1596   // This may be called more than once (if the user clicks the tab close button
1597   // several times, or if she clicks the tab close button then the browser close
1598   // button), and we only send the message once.
1599   if (is_waiting_for_beforeunload_ack_) {
1600     // Some of our close messages could be for the tab, others for cross-site
1601     // transitions. We always want to think it's for closing the tab if any
1602     // of the messages were, since otherwise it might be impossible to close
1603     // (if there was a cross-site "close" request pending when the user clicked
1604     // the close button). We want to keep the "for cross site" flag only if
1605     // both the old and the new ones are also for cross site.
1606     unload_ack_is_for_navigation_ =
1607         unload_ack_is_for_navigation_ && for_navigation;
1608   } else {
1609     // Start the hang monitor in case the renderer hangs in the beforeunload
1610     // handler.
1611     is_waiting_for_beforeunload_ack_ = true;
1612     unload_ack_is_for_navigation_ = for_navigation;
1613     // Increment the in-flight event count, to ensure that input events won't
1614     // cancel the timeout timer.
1615     render_view_host_->increment_in_flight_event_count();
1616     render_view_host_->StartHangMonitorTimeout(
1617         TimeDelta::FromMilliseconds(RenderViewHostImpl::kUnloadTimeoutMS));
1618     send_before_unload_start_time_ = base::TimeTicks::Now();
1619     Send(new FrameMsg_BeforeUnload(routing_id_));
1620   }
1621 }
1622
1623 void RenderFrameHostImpl::DisownOpener() {
1624   Send(new FrameMsg_DisownOpener(GetRoutingID()));
1625 }
1626
1627 void RenderFrameHostImpl::ExtendSelectionAndDelete(size_t before,
1628                                                    size_t after) {
1629   Send(new InputMsg_ExtendSelectionAndDelete(routing_id_, before, after));
1630 }
1631
1632 void RenderFrameHostImpl::JavaScriptDialogClosed(
1633     IPC::Message* reply_msg,
1634     bool success,
1635     const base::string16& user_input,
1636     bool dialog_was_suppressed) {
1637   GetProcess()->SetIgnoreInputEvents(false);
1638   bool is_waiting = is_waiting_for_beforeunload_ack_ || IsWaitingForUnloadACK();
1639
1640   // If we are executing as part of (before)unload event handling, we don't
1641   // want to use the regular hung_renderer_delay_ms_ if the user has agreed to
1642   // leave the current page. In this case, use the regular timeout value used
1643   // during the (before)unload handling.
1644   if (is_waiting) {
1645     render_view_host_->StartHangMonitorTimeout(TimeDelta::FromMilliseconds(
1646         success ? RenderViewHostImpl::kUnloadTimeoutMS
1647                 : render_view_host_->hung_renderer_delay_ms_));
1648   }
1649
1650   FrameHostMsg_RunJavaScriptMessage::WriteReplyParams(reply_msg,
1651                                                       success, user_input);
1652   Send(reply_msg);
1653
1654   // If we are waiting for an unload or beforeunload ack and the user has
1655   // suppressed messages, kill the tab immediately; a page that's spamming
1656   // alerts in onbeforeunload is presumably malicious, so there's no point in
1657   // continuing to run its script and dragging out the process.
1658   // This must be done after sending the reply since RenderView can't close
1659   // correctly while waiting for a response.
1660   if (is_waiting && dialog_was_suppressed)
1661     render_view_host_->delegate_->RendererUnresponsive(render_view_host_);
1662 }
1663
1664 // PlzNavigate
1665 void RenderFrameHostImpl::CommitNavigation(
1666     ResourceResponse* response,
1667     scoped_ptr<StreamHandle> body,
1668     const CommonNavigationParams& common_params,
1669     const CommitNavigationParams& commit_params) {
1670   DCHECK((response && body.get()) ||
1671           !NavigationRequest::ShouldMakeNetworkRequest(common_params.url));
1672   // TODO(clamy): Check if we have to add security checks for the browser plugin
1673   // guests.
1674
1675   // Get back to a clean state, in case we start a new navigation without
1676   // completing a RFH swap or unload handler.
1677   SetState(RenderFrameHostImpl::STATE_DEFAULT);
1678
1679   const GURL body_url = body.get() ? body->GetURL() : GURL();
1680   const ResourceResponseHead head = response ?
1681       response->head : ResourceResponseHead();
1682   Send(new FrameMsg_CommitNavigation(
1683       routing_id_, head, body_url, common_params, commit_params));
1684   // TODO(clamy): Check if we should start the throbber for non javascript urls
1685   // here.
1686
1687   // TODO(clamy): Release the stream handle once the renderer has finished
1688   // reading it.
1689   stream_handle_ = body.Pass();
1690 }
1691
1692 void RenderFrameHostImpl::SetUpMojoIfNeeded() {
1693   if (service_registry_.get())
1694     return;
1695
1696   service_registry_.reset(new ServiceRegistryImpl());
1697   if (!GetProcess()->GetServiceRegistry())
1698     return;
1699
1700   RegisterMojoServices();
1701   RenderFrameSetupPtr setup;
1702   GetProcess()->GetServiceRegistry()->ConnectToRemoteService(&setup);
1703
1704   mojo::ServiceProviderPtr exposed_services;
1705   service_registry_->Bind(GetProxy(&exposed_services));
1706
1707   mojo::ServiceProviderPtr services;
1708   setup->ExchangeServiceProviders(routing_id_, GetProxy(&services),
1709                                   exposed_services.Pass());
1710   service_registry_->BindRemoteServiceProvider(services.Pass());
1711
1712 #if defined(OS_ANDROID)
1713   service_registry_android_.reset(
1714       new ServiceRegistryAndroid(service_registry_.get()));
1715 #endif
1716 }
1717
1718 void RenderFrameHostImpl::InvalidateMojoConnection() {
1719 #if defined(OS_ANDROID)
1720   // The Android-specific service registry has a reference to
1721   // |service_registry_| and thus must be torn down first.
1722   service_registry_android_.reset();
1723 #endif
1724
1725   service_registry_.reset();
1726 }
1727
1728 bool RenderFrameHostImpl::IsFocused() {
1729   // TODO(mlamouri,kenrb): call GetRenderWidgetHost() directly when it stops
1730   // returning nullptr in some cases. See https://crbug.com/455245.
1731   return RenderWidgetHostImpl::From(
1732             GetView()->GetRenderWidgetHost())->is_focused() &&
1733          frame_tree_->GetFocusedFrame() &&
1734          (frame_tree_->GetFocusedFrame() == frame_tree_node() ||
1735           frame_tree_->GetFocusedFrame()->IsDescendantOf(frame_tree_node()));
1736 }
1737
1738 void RenderFrameHostImpl::UpdateCrossProcessIframeAccessibility(
1739     const std::map<int32, int>& node_to_frame_routing_id_map) {
1740   for (const auto& iter : node_to_frame_routing_id_map) {
1741     // This is the id of the accessibility node that has a child frame.
1742     int32 node_id = iter.first;
1743     // The routing id from either a RenderFrame or a RenderFrameProxy.
1744     int frame_routing_id = iter.second;
1745
1746     FrameTree* frame_tree = frame_tree_node()->frame_tree();
1747     FrameTreeNode* child_frame_tree_node = frame_tree->FindByRoutingID(
1748         GetProcess()->GetID(), frame_routing_id);
1749
1750     if (child_frame_tree_node) {
1751       FrameAccessibility::GetInstance()->AddChildFrame(
1752           this, node_id, child_frame_tree_node->frame_tree_node_id());
1753     }
1754   }
1755 }
1756
1757 void RenderFrameHostImpl::UpdateGuestFrameAccessibility(
1758     const std::map<int32, int>& node_to_browser_plugin_instance_id_map) {
1759   for (const auto& iter : node_to_browser_plugin_instance_id_map) {
1760     // This is the id of the accessibility node that hosts a plugin.
1761     int32 node_id = iter.first;
1762     // The id of the browser plugin.
1763     int browser_plugin_instance_id = iter.second;
1764     FrameAccessibility::GetInstance()->AddGuestWebContents(
1765         this, node_id, browser_plugin_instance_id);
1766   }
1767 }
1768
1769 bool RenderFrameHostImpl::IsSameSiteInstance(
1770     RenderFrameHostImpl* other_render_frame_host) {
1771   // As a sanity check, make sure the frame belongs to the same BrowserContext.
1772   CHECK_EQ(GetSiteInstance()->GetBrowserContext(),
1773            other_render_frame_host->GetSiteInstance()->GetBrowserContext());
1774   return GetSiteInstance() == other_render_frame_host->GetSiteInstance();
1775 }
1776
1777 void RenderFrameHostImpl::SetAccessibilityMode(AccessibilityMode mode) {
1778   Send(new FrameMsg_SetAccessibilityMode(routing_id_, mode));
1779 }
1780
1781 void RenderFrameHostImpl::SetAccessibilityCallbackForTesting(
1782     const base::Callback<void(ui::AXEvent, int)>& callback) {
1783   accessibility_testing_callback_ = callback;
1784 }
1785
1786 const ui::AXTree* RenderFrameHostImpl::GetAXTreeForTesting() {
1787   return ax_tree_for_testing_.get();
1788 }
1789
1790 BrowserAccessibilityManager*
1791     RenderFrameHostImpl::GetOrCreateBrowserAccessibilityManager() {
1792   RenderWidgetHostViewBase* view = static_cast<RenderWidgetHostViewBase*>(
1793       render_view_host_->GetView());
1794   if (view &&
1795       !browser_accessibility_manager_ &&
1796       !no_create_browser_accessibility_manager_for_testing_) {
1797     browser_accessibility_manager_.reset(
1798         view->CreateBrowserAccessibilityManager(this));
1799     if (browser_accessibility_manager_)
1800       UMA_HISTOGRAM_COUNTS("Accessibility.FrameEnabledCount", 1);
1801     else
1802       UMA_HISTOGRAM_COUNTS("Accessibility.FrameDidNotEnableCount", 1);
1803   }
1804   return browser_accessibility_manager_.get();
1805 }
1806
1807 void RenderFrameHostImpl::ActivateFindInPageResultForAccessibility(
1808     int request_id) {
1809   AccessibilityMode accessibility_mode = delegate_->GetAccessibilityMode();
1810   if (accessibility_mode & AccessibilityModeFlagPlatform) {
1811     BrowserAccessibilityManager* manager =
1812         GetOrCreateBrowserAccessibilityManager();
1813     if (manager)
1814       manager->ActivateFindInPageResult(request_id);
1815   }
1816 }
1817
1818 void RenderFrameHostImpl::InsertVisualStateCallback(
1819     const VisualStateCallback& callback) {
1820   static uint64 next_id = 1;
1821   uint64 key = next_id++;
1822   Send(new FrameMsg_VisualStateRequest(routing_id_, key));
1823   visual_state_callbacks_.insert(std::make_pair(key, callback));
1824 }
1825
1826 #if defined(OS_WIN)
1827
1828 void RenderFrameHostImpl::SetParentNativeViewAccessible(
1829     gfx::NativeViewAccessible accessible_parent) {
1830   RenderWidgetHostViewBase* view = static_cast<RenderWidgetHostViewBase*>(
1831       render_view_host_->GetView());
1832   if (view)
1833     view->SetParentNativeViewAccessible(accessible_parent);
1834 }
1835
1836 gfx::NativeViewAccessible
1837 RenderFrameHostImpl::GetParentNativeViewAccessible() const {
1838   return delegate_->GetParentNativeViewAccessible();
1839 }
1840
1841 #elif defined(OS_MACOSX)
1842
1843 void RenderFrameHostImpl::DidSelectPopupMenuItem(int selected_index) {
1844   Send(new FrameMsg_SelectPopupMenuItem(routing_id_, selected_index));
1845 }
1846
1847 void RenderFrameHostImpl::DidCancelPopupMenu() {
1848   Send(new FrameMsg_SelectPopupMenuItem(routing_id_, -1));
1849 }
1850
1851 #elif defined(OS_ANDROID)
1852
1853 void RenderFrameHostImpl::DidSelectPopupMenuItems(
1854     const std::vector<int>& selected_indices) {
1855   Send(new FrameMsg_SelectPopupMenuItems(routing_id_, false, selected_indices));
1856 }
1857
1858 void RenderFrameHostImpl::DidCancelPopupMenu() {
1859   Send(new FrameMsg_SelectPopupMenuItems(
1860       routing_id_, true, std::vector<int>()));
1861 }
1862
1863 #endif
1864
1865 void RenderFrameHostImpl::ClearPendingTransitionRequestData() {
1866   BrowserThread::PostTask(
1867       BrowserThread::IO,
1868       FROM_HERE,
1869       base::Bind(
1870           &TransitionRequestManager::ClearPendingTransitionRequestData,
1871           base::Unretained(TransitionRequestManager::GetInstance()),
1872           GetProcess()->GetID(),
1873           routing_id_));
1874 }
1875
1876 void RenderFrameHostImpl::SetNavigationsSuspended(
1877     bool suspend,
1878     const base::TimeTicks& proceed_time) {
1879   // This should only be called to toggle the state.
1880   DCHECK(navigations_suspended_ != suspend);
1881
1882   navigations_suspended_ = suspend;
1883   if (navigations_suspended_) {
1884     TRACE_EVENT_ASYNC_BEGIN0("navigation",
1885                              "RenderFrameHostImpl navigation suspended", this);
1886   } else {
1887     TRACE_EVENT_ASYNC_END0("navigation",
1888                            "RenderFrameHostImpl navigation suspended", this);
1889   }
1890
1891   if (!suspend && suspended_nav_params_) {
1892     // There's navigation message params waiting to be sent. Now that we're not
1893     // suspended anymore, resume navigation by sending them. If we were swapped
1894     // out, we should also stop filtering out the IPC messages now.
1895     SetState(RenderFrameHostImpl::STATE_DEFAULT);
1896
1897     DCHECK(!proceed_time.is_null());
1898     suspended_nav_params_->commit_params.browser_navigation_start =
1899         proceed_time;
1900     Send(new FrameMsg_Navigate(routing_id_, *suspended_nav_params_));
1901     suspended_nav_params_.reset();
1902   }
1903 }
1904
1905 void RenderFrameHostImpl::CancelSuspendedNavigations() {
1906   // Clear any state if a pending navigation is canceled or preempted.
1907   if (suspended_nav_params_)
1908     suspended_nav_params_.reset();
1909
1910   TRACE_EVENT_ASYNC_END0("navigation",
1911                          "RenderFrameHostImpl navigation suspended", this);
1912   navigations_suspended_ = false;
1913 }
1914
1915 void RenderFrameHostImpl::DidUseGeolocationPermission() {
1916   RenderFrameHost* top_frame = frame_tree_node()->frame_tree()->GetMainFrame();
1917   GetContentClient()->browser()->RegisterPermissionUsage(
1918       PERMISSION_GEOLOCATION,
1919       delegate_->GetAsWebContents(),
1920       GetLastCommittedURL().GetOrigin(),
1921       top_frame->GetLastCommittedURL().GetOrigin());
1922 }
1923
1924 }  // namespace content