Move RenderViewHostManager from WebContents to FrameTreeNode.

content/browser/web_contents/web_contents_impl.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/web_contents/web_contents_impl.h"
 
 #include <utility>
 
 #include "base/command_line.h"
 #include "base/debug/trace_event.h"
@@ skipping 324 matching lines @@
 WebContentsImpl::WebContentsImpl(
     BrowserContext* browser_context,
     WebContentsImpl* opener)
     : delegate_(NULL),
       controller_(this, browser_context),
       render_view_host_delegate_view_(NULL),
       opener_(opener),
 #if defined(OS_WIN) && defined(USE_AURA)
       accessible_parent_(NULL),
 #endif
-      render_manager_(this, this, this),
-      frame_tree_(new Navigator(&controller_, this)),
+      frame_tree_(new Navigator(&controller_, this), this, this, this),
       is_loading_(false),
       crashed_status_(base::TERMINATION_STATUS_STILL_RUNNING),
       crashed_error_code_(0),
       waiting_for_response_(false),
       load_state_(net::LOAD_STATE_IDLE, string16()),
       upload_size_(0),
       upload_position_(0),
       displayed_insecure_content_(false),
       capturer_count_(0),
       should_normally_be_visible_(true),
@@ skipping 45 matching lines @@
 #if defined(OS_WIN) && !defined(USE_AURA)
   // If we still have a window handle, destroy it. GetNativeView can return
   // NULL if this contents was part of a window that closed.
   if (view_->GetNativeView()) {
     RenderViewHost* host = GetRenderViewHost();
     if (host && host->GetView())
       RenderWidgetHostViewPort::FromRWHV(host->GetView())->WillWmDestroy();
   }
 #endif
 
-  RenderViewHost* pending_rvh = render_manager_.pending_render_view_host();
+  RenderViewHost* pending_rvh = GetRenderManager()->pending_render_view_host();
   if (pending_rvh) {
     FOR_EACH_OBSERVER(WebContentsObserver,
                       observers_,
                       RenderViewDeleted(pending_rvh));
   }
 
   FOR_EACH_OBSERVER(WebContentsObserver,
                     observers_,
-                    RenderViewDeleted(render_manager_.current_host()));
+                    RenderViewDeleted(GetRenderManager()->current_host()));
 
   FOR_EACH_OBSERVER(WebContentsObserver,
                     observers_,
                     WebContentsImplDestroyed());
 
   SetDelegate(NULL);
 
   STLDeleteContainerPairSecondPointers(destruction_observers_.begin(),
                                        destruction_observers_.end());
 }
@@ skipping 27 matching lines @@
 
   // We are instantiating a WebContents for browser plugin. Set its subframe bit
   // to true.
   static_cast<RenderViewHostImpl*>(
       new_contents->GetRenderViewHost())->set_is_subframe(true);
 
   return new_contents->browser_plugin_guest_.get();
 }
 
 RenderViewHostManager* WebContentsImpl::GetRenderManagerForTesting() {
-  return &render_manager_;
+  return GetRenderManager();
 }
 
 bool WebContentsImpl::OnMessageReceived(RenderViewHost* render_view_host,
                                         const IPC::Message& message) {
   if (GetWebUI() &&
       static_cast<WebUIImpl*>(GetWebUI())->OnMessageReceived(message)) {
     return true;
   }
 
   ObserverListBase<WebContentsObserver>::Iterator it(observers_);
@@ skipping 115 matching lines @@
   delegate_ = delegate;
   if (delegate_) {
     delegate_->Attach(this);
     // Ensure the visible RVH reflects the new delegate's preferences.
     if (view_)
       view_->SetOverscrollControllerEnabled(delegate->CanOverscrollContent());
   }
 }
 
 RenderProcessHost* WebContentsImpl::GetRenderProcessHost() const {
-  RenderViewHostImpl* host = render_manager_.current_host();
+  RenderViewHostImpl* host = GetRenderManager()->current_host();
   return host ? host->GetProcess() : NULL;
 }
 
 RenderViewHost* WebContentsImpl::GetRenderViewHost() const {
-  return render_manager_.current_host();
+  return GetRenderManager()->current_host();
 }
 
 void WebContentsImpl::GetRenderViewHostAtPosition(
     int x,
     int y,
     const base::Callback<void(RenderViewHost*, int, int)>& callback) {
   BrowserPluginEmbedder* embedder = GetBrowserPluginEmbedder();
   if (embedder)
     embedder->GetRenderViewHostAtPosition(x, y, callback);
   else
@@ skipping 19 matching lines @@
     return MSG_ROUTING_NONE;
 
   return GetRenderViewHost()->GetRoutingID();
 }
 
 int WebContentsImpl::GetFullscreenWidgetRoutingID() const {
   return fullscreen_widget_routing_id_;
 }
 
 RenderWidgetHostView* WebContentsImpl::GetRenderWidgetHostView() const {
-  return render_manager_.GetRenderWidgetHostView();
+  return GetRenderManager()->GetRenderWidgetHostView();
 }
 
 RenderWidgetHostViewPort* WebContentsImpl::GetRenderWidgetHostViewPort() const {
   BrowserPluginGuest* guest = GetBrowserPluginGuest();
   if (guest && guest->embedder_web_contents()) {
     return guest->embedder_web_contents()->GetRenderWidgetHostViewPort();
   }
   return RenderWidgetHostViewPort::FromRWHV(GetRenderWidgetHostView());
 }
 
@@ skipping 17 matching lines @@
     web_ui->AddMessageHandler(new GenericHandler());
     web_ui->SetController(controller);
     return web_ui;
   }
 
   delete web_ui;
   return NULL;
 }
 
 WebUI* WebContentsImpl::GetWebUI() const {
-  return render_manager_.web_ui() ? render_manager_.web_ui()
-      : render_manager_.pending_web_ui();
+  return GetRenderManager()->web_ui() ? GetRenderManager()->web_ui()
+      : GetRenderManager()->pending_web_ui();
 }
 
 WebUI* WebContentsImpl::GetCommittedWebUI() const {
-  return render_manager_.web_ui();
+  return GetRenderManager()->web_ui();
 }
 
 void WebContentsImpl::SetUserAgentOverride(const std::string& override) {
   if (GetUserAgentOverride() == override)
     return;
 
   renderer_preferences_.user_agent_override = override;
 
   // Send the new override string to the renderer.
   RenderViewHost* host = GetRenderViewHost();
@@ skipping 26 matching lines @@
 const string16& WebContentsImpl::GetTitle() const {
   // Transient entries take precedence. They are used for interstitial pages
   // that are shown on top of existing pages.
   NavigationEntry* entry = controller_.GetTransientEntry();
   std::string accept_languages =
       GetContentClient()->browser()->GetAcceptLangs(
           GetBrowserContext());
   if (entry) {
     return entry->GetTitleForDisplay(accept_languages);
   }
-  WebUI* our_web_ui = render_manager_.pending_web_ui() ?
-      render_manager_.pending_web_ui() : render_manager_.web_ui();
+  WebUI* our_web_ui = GetRenderManager()->pending_web_ui() ?
+      GetRenderManager()->pending_web_ui() : GetRenderManager()->web_ui();
   if (our_web_ui) {
     // Don't override the title in view source mode.
     entry = controller_.GetVisibleEntry();
     if (!(entry && entry->IsViewSourceMode())) {
       // Give the Web UI the chance to override our title.
       const string16& title = our_web_ui->GetOverriddenTitle();
       if (!title.empty())
         return title;
     }
   }
@@ skipping 40 matching lines @@
   if (GetMaxPageIDForSiteInstance(site_instance) < page_id)
     max_page_ids_[site_instance->GetId()] = page_id;
 }
 
 void WebContentsImpl::CopyMaxPageIDsFrom(WebContents* web_contents) {
   WebContentsImpl* contents = static_cast<WebContentsImpl*>(web_contents);
   max_page_ids_ = contents->max_page_ids_;
 }
 
 SiteInstance* WebContentsImpl::GetSiteInstance() const {
-  return render_manager_.current_host()->GetSiteInstance();
+  return GetRenderManager()->current_host()->GetSiteInstance();
 }
 
 SiteInstance* WebContentsImpl::GetPendingSiteInstance() const {
-  RenderViewHost* dest_rvh = render_manager_.pending_render_view_host() ?
-      render_manager_.pending_render_view_host() :
-      render_manager_.current_host();
+  RenderViewHost* dest_rvh = GetRenderManager()->pending_render_view_host() ?
+      GetRenderManager()->pending_render_view_host() :
+      GetRenderManager()->current_host();
   return dest_rvh->GetSiteInstance();
 }
 
 bool WebContentsImpl::IsLoading() const {
   return is_loading_;
 }
 
 bool WebContentsImpl::IsWaitingForResponse() const {
   return waiting_for_response_;
 }
@@ skipping 138 matching lines @@
 
 bool WebContentsImpl::NeedToFireBeforeUnload() {
   // TODO(creis): Should we fire even for interstitial pages?
   return WillNotifyDisconnection() &&
       !ShowingInterstitialPage() &&
       !static_cast<RenderViewHostImpl*>(
           GetRenderViewHost())->SuddenTerminationAllowed();
 }
 
 void WebContentsImpl::Stop() {
-  render_manager_.Stop();
+  GetRenderManager()->Stop();
   FOR_EACH_OBSERVER(WebContentsObserver, observers_, NavigationStopped());
 }
 
 WebContents* WebContentsImpl::Clone() {
   // We use our current SiteInstance since the cloned entry will use it anyway.
   // We pass our own opener so that the cloned page can access it if it was
   // before.
   CreateParams create_params(GetBrowserContext(), GetSiteInstance());
   create_params.initial_size = view_->GetContainerSize();
   WebContentsImpl* tc = CreateWithOpener(create_params, opener_);
@@ skipping 22 matching lines @@
     default:
       NOTREACHED();
   }
 }
 
 WebContents* WebContentsImpl::GetWebContents() {
   return this;
 }
 
 void WebContentsImpl::Init(const WebContents::CreateParams& params) {
-  // This is set before initializing the render_manager_ since render_manager_
-  // init calls back into us via its delegate to ask if it should be hidden.
+  // This is set before initializing the render manager since
+  // RenderViewHostManager::Init calls back into us via its delegate to ask if
+  // it should be hidden.
   should_normally_be_visible_ = !params.initially_hidden;
 
-  render_manager_.Init(
+  GetRenderManager()->Init(
       params.browser_context, params.site_instance, params.routing_id,
       params.main_frame_routing_id);
 
   view_.reset(GetContentClient()->browser()->
       OverrideCreateWebContentsView(this, &render_view_host_delegate_view_));
   if (view_) {
     CHECK(render_view_host_delegate_view_);
   } else {
     WebContentsViewDelegate* delegate =
         GetContentClient()->browser()->GetWebContentsViewDelegate(this);
@@ skipping 546 matching lines @@
 
 void WebContentsImpl::RenderViewForInterstitialPageCreated(
     RenderViewHost* render_view_host) {
   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
                     RenderViewForInterstitialPageCreated(render_view_host));
 }
 
 void WebContentsImpl::AttachInterstitialPage(
     InterstitialPageImpl* interstitial_page) {
   DCHECK(interstitial_page);
-  render_manager_.set_interstitial_page(interstitial_page);
+  GetRenderManager()->set_interstitial_page(interstitial_page);
 
   // Cancel any visible dialogs so that they don't interfere with the
   // interstitial.
   if (dialog_manager_)
     dialog_manager_->CancelActiveAndPendingDialogs(this);
 
   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
                     DidAttachInterstitialPage());
 }
 
 void WebContentsImpl::DetachInterstitialPage() {
   if (GetInterstitialPage())
-    render_manager_.remove_interstitial_page();
+    GetRenderManager()->remove_interstitial_page();
   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
                     DidDetachInterstitialPage());
 }
 
 bool WebContentsImpl::NavigateToEntry(
     const NavigationEntryImpl& entry,
     NavigationController::ReloadType reload_type) {
   TRACE_EVENT0("browser", "WebContentsImpl::NavigateToEntry");
 
   // The renderer will reject IPC messages with URLs longer than
   // this limit, so don't attempt to navigate with a longer URL.
   if (entry.GetURL().spec().size() > kMaxURLChars) {
     LOG(WARNING) << "Refusing to load URL as it exceeds " << kMaxURLChars
                  << " characters.";
     return false;
   }
 
   RenderViewHostImpl* dest_render_view_host =
-      static_cast<RenderViewHostImpl*>(render_manager_.Navigate(entry));
+      static_cast<RenderViewHostImpl*>(GetRenderManager()->Navigate(entry));
   if (!dest_render_view_host)
     return false;  // Unable to create the desired render view host.
 
   // For security, we should never send non-Web-UI URLs to a Web UI renderer.
   // Double check that here.
   int enabled_bindings = dest_render_view_host->GetEnabledBindings();
   bool data_urls_allowed = delegate_ && delegate_->CanLoadDataURLsInWebUI();
   bool is_allowed_in_web_ui_renderer =
       WebUIControllerFactoryRegistry::GetInstance()->IsURLAcceptableForWebUI(
           GetBrowserContext(), entry.GetURL(), data_urls_allowed);
@@ skipping 38 matching lines @@
 
   return true;
 }
 
 void WebContentsImpl::SetHistoryLengthAndPrune(
     const SiteInstance* site_instance,
     int history_length,
     int32 minimum_page_id) {
   // SetHistoryLengthAndPrune doesn't work when there are pending cross-site
   // navigations. Callers should ensure that this is the case.
-  if (render_manager_.pending_render_view_host()) {
+  if (GetRenderManager()->pending_render_view_host()) {
     NOTREACHED();
     return;
   }
   RenderViewHostImpl* rvh = GetRenderViewHostImpl();
   if (!rvh) {
     NOTREACHED();
     return;
   }
   if (site_instance && rvh->GetSiteInstance() != site_instance) {
     NOTREACHED();
     return;
   }
   Send(new ViewMsg_SetHistoryLengthAndPrune(GetRoutingID(),
                                             history_length,
                                             minimum_page_id));
 }
 
 void WebContentsImpl::FocusThroughTabTraversal(bool reverse) {
   if (ShowingInterstitialPage()) {
-    render_manager_.interstitial_page()->FocusThroughTabTraversal(reverse);
+    GetRenderManager()->interstitial_page()->FocusThroughTabTraversal(reverse);
     return;
   }
   GetRenderViewHostImpl()->SetInitialFocus(reverse);
 }
 
 bool WebContentsImpl::ShowingInterstitialPage() const {
-  return render_manager_.interstitial_page() != NULL;
+  return GetRenderManager()->interstitial_page() != NULL;
 }
 
 InterstitialPage* WebContentsImpl::GetInterstitialPage() const {
-  return render_manager_.interstitial_page();
+  return GetRenderManager()->interstitial_page();
 }
 
 bool WebContentsImpl::IsSavable() {
   // WebKit creates Document object when MIME type is application/xhtml+xml,
   // so we also support this MIME type.
   return contents_mime_type_ == "text/html" ||
          contents_mime_type_ == "text/xml" ||
          contents_mime_type_ == "application/xhtml+xml" ||
          contents_mime_type_ == "text/plain" ||
          contents_mime_type_ == "text/css" ||
@@ skipping 371 matching lines @@
     // Because this will not tear down the interstitial properly, if "back" is
     // back to another tab type, the interstitial will still be somewhat alive
     // in the previous tab type. If you navigate somewhere that activates the
     // tab with the interstitial again, you'll see a flash before the new load
     // commits of the interstitial page.
     if (ShowingInterstitialPage()) {
       LOG(WARNING) << "Discarding message during interstitial.";
       return;
     }
 
-    render_manager_.RendererAbortedProvisionalLoad(render_view_host);
+    GetRenderManager()->RendererAbortedProvisionalLoad(render_view_host);
   }
 
   // Do not usually clear the pending entry if one exists, so that the user's
   // typed URL is not lost when a navigation fails or is aborted.  However, in
   // cases that we don't show the pending entry (e.g., renderer-initiated
   // navigations in an existing tab), we don't keep it around.  That prevents
   // spoofs on in-page navigations that don't go through
   // DidStartProvisionalLoadForFrame.
   // In general, we allow the view to clear the pending entry and typed URL if
   // the user requests (e.g., hitting Escape with focus in the address bar).
@@ skipping 386 matching lines @@
   if (is_loading == is_loading_)
     return;
 
   if (!is_loading) {
     load_state_ = net::LoadStateWithParam(net::LOAD_STATE_IDLE, string16());
     load_state_host_.clear();
     upload_size_ = 0;
     upload_position_ = 0;
   }
 
-  render_manager_.SetIsLoading(is_loading);
+  GetRenderManager()->SetIsLoading(is_loading);
 
   is_loading_ = is_loading;
   waiting_for_response_ = is_loading;
 
   if (delegate_)
     delegate_->LoadingStateChanged(this);
   NotifyNavigationStateChanged(INVALIDATE_TYPE_LOAD);
 
   const char* url =
       (details ? details->url.possibly_invalid_spec().c_str() : "NULL");
@@ skipping 170 matching lines @@
   FOR_EACH_OBSERVER(
       WebContentsObserver, observers_, NavigationEntryCommitted(load_details));
 }
 
 RenderViewHostDelegateView* WebContentsImpl::GetDelegateView() {
   return render_view_host_delegate_view_;
 }
 
 RenderViewHostDelegate::RendererManagement*
 WebContentsImpl::GetRendererManagementDelegate() {
-  return &render_manager_;
+  return GetRenderManager();
 }
 
 RendererPreferences WebContentsImpl::GetRendererPrefs(
     BrowserContext* browser_context) const {
   return renderer_preferences_;
 }
 
 WebContents* WebContentsImpl::GetAsWebContents() {
   return this;
 }
@@ skipping 19 matching lines @@
   if (delegate_)
     view_->SetOverscrollControllerEnabled(delegate_->CanOverscrollContent());
 
   NotificationService::current()->Notify(
       NOTIFICATION_WEB_CONTENTS_RENDER_VIEW_HOST_CREATED,
       Source<WebContents>(this),
       Details<RenderViewHost>(render_view_host));
 
   // When we're creating views, we're still doing initial setup, so we always
   // use the pending Web UI rather than any possibly existing committed one.
-  if (render_manager_.pending_web_ui())
-    render_manager_.pending_web_ui()->RenderViewCreated(render_view_host);
+  if (GetRenderManager()->pending_web_ui())
+    GetRenderManager()->pending_web_ui()->RenderViewCreated(render_view_host);
 
   NavigationEntry* entry = controller_.GetPendingEntry();
   if (entry && entry->IsViewSourceMode()) {
     // Put the renderer in view source mode.
     render_view_host->Send(
         new ViewMsg_EnableViewSourceMode(render_view_host->GetRoutingID()));
   }
 
   view_->RenderViewCreated(render_view_host);
 
@@ skipping 42 matching lines @@
   SetIsCrashed(status, error_code);
   GetView()->OnTabCrashed(GetCrashedStatus(), crashed_error_code_);
 
   FOR_EACH_OBSERVER(WebContentsObserver,
                     observers_,
                     RenderProcessGone(GetCrashedStatus()));
 }
 
 void WebContentsImpl::RenderViewDeleted(RenderViewHost* rvh) {
   ClearPowerSaveBlockers(rvh);
-  render_manager_.RenderViewDeleted(rvh);
+  GetRenderManager()->RenderViewDeleted(rvh);
   FOR_EACH_OBSERVER(WebContentsObserver, observers_, RenderViewDeleted(rvh));
 }
 
 void WebContentsImpl::DidGetResourceResponseStart(
   const ResourceRequestDetails& details) {
   controller_.ssl_manager()->DidStartResourceResponse(details);
 
   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
                     DidGetResourceResponseStart(details));
 
@@ skipping 30 matching lines @@
   if (PageTransitionIsMainFrame(params.transition)) {
     // When overscroll navigation gesture is enabled, a screenshot of the page
     // in its current state is taken so that it can be used during the
     // nav-gesture. It is necessary to take the screenshot here, before calling
     // RenderViewHostManager::DidNavigateMainFrame, because that can change
     // WebContents::GetRenderViewHost to return the new host, instead of the one
     // that may have just been swapped out.
     if (delegate_ && delegate_->CanOverscrollContent())
       controller_.TakeScreenshot();
 
-    render_manager_.DidNavigateMainFrame(rvh);
+    GetRenderManager()->DidNavigateMainFrame(rvh);
   }
 
   // Update the site of the SiteInstance if it doesn't have one yet, unless
   // assigning a site is not necessary for this URL.  In that case, the
   // SiteInstance can still be considered unused until a navigation to a real
   // page.
   if (!static_cast<SiteInstanceImpl*>(GetSiteInstance())->HasSite() &&
       ShouldAssignSiteForURL(params.url)) {
     static_cast<SiteInstanceImpl*>(GetSiteInstance())->SetSite(params.url);
   }
@@ skipping 64 matching lines @@
     }
   }
   DidNavigateAnyFramePostCommit(rvh, details, params);
 }
 
 void WebContentsImpl::UpdateState(RenderViewHost* rvh,
                                   int32 page_id,
                                   const PageState& page_state) {
   // Ensure that this state update comes from either the active RVH or one of
   // the swapped out RVHs.  We don't expect to hear from any other RVHs.
-  DCHECK(rvh == GetRenderViewHost() || render_manager_.IsOnSwappedOutList(rvh));
+  DCHECK(rvh == GetRenderViewHost() ||
+         GetRenderManager()->IsOnSwappedOutList(rvh));
 
   // We must be prepared to handle state updates for any page, these occur
   // when the user is scrolling and entering form data, as well as when we're
   // leaving a page, in which case our state may have already been moved to
   // the next page. The navigation controller will look up the appropriate
   // NavigationEntry and update it when it is notified via the delegate.
 
   int entry_index = controller_.GetEntryIndexWithPageID(
       rvh->GetSiteInstance(), page_id);
   if (entry_index < 0)
@@ skipping 62 matching lines @@
   // Ignore this if it comes from a RenderViewHost that we aren't showing.
   if (delegate_ && rvh == GetRenderViewHost())
     delegate_->CloseContents(this);
 }
 
 void WebContentsImpl::SwappedOut(RenderViewHost* rvh) {
   if (delegate_ && rvh == GetRenderViewHost())
     delegate_->SwappedOut(this);
 
   // Allow the navigation to proceed.
-  render_manager_.SwappedOut(rvh);
+  GetRenderManager()->SwappedOut(rvh);
 }
 
 void WebContentsImpl::RequestMove(const gfx::Rect& new_bounds) {
   if (delegate_ && delegate_->IsPopupOrPanel(this))
     delegate_->MoveContents(this, new_bounds);
 }
 
 void WebContentsImpl::DidStartLoading(RenderViewHost* render_view_host) {
   SetIsLoading(render_view_host, true, NULL);
 }
@@ skipping 37 matching lines @@
   if (opener_) {
     // Clear our opener so that future cross-process navigations don't have an
     // opener assigned.
     RemoveDestructionObserver(opener_);
     opener_ = NULL;
   }
 
   // Notify all swapped out RenderViewHosts for this tab.  This is important
   // in case we go back to them, or if another window in those processes tries
   // to access window.opener.
-  render_manager_.DidDisownOpener(rvh);
+  GetRenderManager()->DidDisownOpener(rvh);
 }
 
 void WebContentsImpl::DidAccessInitialDocument() {
   // Update the URL display.
   NotifyNavigationStateChanged(content::INVALIDATE_TYPE_URL);
 }
 
 void WebContentsImpl::DocumentAvailableInMainFrame(
     RenderViewHost* render_view_host) {
   FOR_EACH_OBSERVER(WebContentsObserver, observers_,
@@ skipping 54 matching lines @@
     dest_url = GURL(kAboutBlankURL);
 
   OpenURLParams params(dest_url, referrer, source_frame_id, disposition,
       page_transition, true /* is_renderer_initiated */);
   if (redirect_chain.size() > 0)
     params.redirect_chain = redirect_chain;
   params.transferred_global_request_id = old_request_id;
   params.should_replace_current_entry = should_replace_current_entry;
   params.user_gesture = user_gesture;
 
-  if (render_manager_.web_ui()) {
+  if (GetRenderManager()->web_ui()) {
     // Web UI pages sometimes want to override the page transition type for
     // link clicks (e.g., so the new tab page can specify AUTO_BOOKMARK for
     // automatically generated suggestions).  We don't override other types
     // like TYPED because they have different implications (e.g., autocomplete).
     if (PageTransitionCoreTypeIs(params.transition, PAGE_TRANSITION_LINK))
-      params.transition = render_manager_.web_ui()->GetLinkTransitionType();
+      params.transition = GetRenderManager()->web_ui()->GetLinkTransitionType();
 
     // Note also that we hide the referrer for Web UI pages. We don't really
     // want web sites to see a referrer of "chrome://blah" (and some
     // chrome: URLs might have search terms or other stuff we don't want to
     // send to the site), so we send no referrer.
     params.referrer = Referrer();
 
     // Navigations in Web UI pages count as browser-initiated navigations.
     params.is_renderer_initiated = false;
 
@@ skipping 183 matching lines @@
 }
 
 WebPreferences WebContentsImpl::GetWebkitPrefs() {
   // We want to base the page config off of the actual URL, rather than the
   // virtual URL.
   // TODO(nasko): Investigate how to remove the GetActiveEntry usage here,
   // as it is deprecated and can be out of sync with GetRenderViewHost().
   GURL url = controller_.GetActiveEntry()
       ? controller_.GetActiveEntry()->GetURL() : GURL::EmptyGURL();
 
-  return render_manager_.current_host()->GetWebkitPrefs(url);
+  return GetRenderManager()->current_host()->GetWebkitPrefs(url);
 }
 
 int WebContentsImpl::CreateSwappedOutRenderView(
     SiteInstance* instance) {
-  return render_manager_.CreateRenderView(instance, MSG_ROUTING_NONE,
-                                          true, true);
+  return GetRenderManager()->CreateRenderView(instance, MSG_ROUTING_NONE,
+                                              true, true);
 }
 
 void WebContentsImpl::OnUserGesture() {
   // Notify observers.
   FOR_EACH_OBSERVER(WebContentsObserver, observers_, DidGetUserGesture());
 
   ResourceDispatcherHostImpl* rdh = ResourceDispatcherHostImpl::Get();
   if (rdh)  // NULL in unittests.
     rdh->OnUserGesture(this);
 }
@@ skipping 16 matching lines @@
   // since the event may be a result of the renderer sitting on a breakpoint.
   // See http://crbug.com/65458
   if (DevToolsAgentHost::IsDebuggerAttached(this))
     return;
 
   if (is_during_beforeunload || is_during_unload) {
     // Hang occurred while firing the beforeunload/unload handler.
     // Pretend the handler fired so tab closing continues as if it had.
     rvhi->set_sudden_termination_allowed(true);
 
-    if (!render_manager_.ShouldCloseTabOnUnresponsiveRenderer())
+    if (!GetRenderManager()->ShouldCloseTabOnUnresponsiveRenderer())
       return;
 
     // If the tab hangs in the beforeunload/unload handler there's really
     // nothing we can do to recover. If the hang is in the beforeunload handler,
     // pretend the beforeunload listeners have all fired and allow the delegate
     // to continue closing; the user will not have the option of cancelling the
     // close. Otherwise, pretend the unload listeners have all fired and close
     // the tab.
     bool close = true;
     if (is_during_beforeunload) {
@@ skipping 96 matching lines @@
 int WebContentsImpl::CreateOpenerRenderViews(SiteInstance* instance) {
   int opener_route_id = MSG_ROUTING_NONE;
 
   // If this tab has an opener, ensure it has a RenderView in the given
   // SiteInstance as well.
   if (opener_)
     opener_route_id = opener_->CreateOpenerRenderViews(instance);
 
   // If any of the renderers (current, pending, or swapped out) for this
   // WebContents has the same SiteInstance, use it.
-  if (render_manager_.current_host()->GetSiteInstance() == instance)
-    return render_manager_.current_host()->GetRoutingID();
+  if (GetRenderManager()->current_host()->GetSiteInstance() == instance)
+    return GetRenderManager()->current_host()->GetRoutingID();
 
-  if (render_manager_.pending_render_view_host() &&
-      render_manager_.pending_render_view_host()->GetSiteInstance() == instance)
-    return render_manager_.pending_render_view_host()->GetRoutingID();
+  if (GetRenderManager()->pending_render_view_host() &&
+      GetRenderManager()->pending_render_view_host()->GetSiteInstance() ==
+          instance)
+    return GetRenderManager()->pending_render_view_host()->GetRoutingID();
 
-  RenderViewHostImpl* rvh = render_manager_.GetSwappedOutRenderViewHost(
+  RenderViewHostImpl* rvh = GetRenderManager()->GetSwappedOutRenderViewHost(
       instance);
   if (rvh)
     return rvh->GetRoutingID();
 
   // Create a swapped out RenderView in the given SiteInstance if none exists,
   // setting its opener to the given route_id.  Return the new view's route_id.
-  return render_manager_.CreateRenderView(instance, opener_route_id,
-                                          true, true);
+  return GetRenderManager()->CreateRenderView(instance, opener_route_id,
+                                              true, true);
 }
 
 NavigationControllerImpl& WebContentsImpl::GetControllerForRenderManager() {
   return GetController();
 }
 
 WebUIImpl* WebContentsImpl::CreateWebUIForRenderManager(const GURL& url) {
   return static_cast<WebUIImpl*>(CreateWebUI(url));
 }
 
@@ skipping 70 matching lines @@
   RenderWidgetHostView* rwh_view = view_->CreateViewForWidget(rvh);
   // Can be NULL during tests.
   if (rwh_view)
     rwh_view->SetSize(GetView()->GetContainerSize());
 }
 
 bool WebContentsImpl::IsHidden() {
   return capturer_count_ == 0 && !should_normally_be_visible_;
 }
 
+RenderViewHostManager* WebContentsImpl::GetRenderManager() const {
+  return frame_tree_.root()->render_manager();
+}
+
 RenderViewHostImpl* WebContentsImpl::GetRenderViewHostImpl() {
   return static_cast<RenderViewHostImpl*>(GetRenderViewHost());
 }
 
 BrowserPluginGuest* WebContentsImpl::GetBrowserPluginGuest() const {
   return browser_plugin_guest_.get();
 }
 
 void WebContentsImpl::SetBrowserPluginGuest(BrowserPluginGuest* guest) {
   CHECK(!browser_plugin_guest_);
@@ skipping 34 matching lines @@
 }
 
 void WebContentsImpl::OnFrameRemoved(
     RenderViewHostImpl* render_view_host,
     int64 frame_id) {
    FOR_EACH_OBSERVER(WebContentsObserver, observers_,
                      FrameDetached(render_view_host, frame_id));
 }
 
 }  // namespace content