Keep a copy of page id in RenderViewHost.

content/browser/frame_host/render_frame_host_impl.h

 // Copyright 2013 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.
 
 #ifndef CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_
 #define CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_
 
 #include <map>
 #include <vector>
 
@@ skipping 305 matching lines @@
                                          bool is_transition_navigation);
   void OnDidFailProvisionalLoadWithError(
       const FrameHostMsg_DidFailProvisionalLoadWithError_Params& params);
   void OnDidFailLoadWithError(
       const GURL& url,
       int error_code,
       const base::string16& error_description);
   void OnDidRedirectProvisionalLoad(int32 page_id,
                                     const GURL& source_url,
                                     const GURL& target_url);
-  void OnNavigate(const IPC::Message& msg);
+  void OnDidCommitProvisionalLoad(const IPC::Message& msg);
   void OnBeforeUnloadACK(
       bool proceed,
       const base::TimeTicks& renderer_before_unload_start_time,
       const base::TimeTicks& renderer_before_unload_end_time);
   void OnSwapOutACK();
   void OnContextMenu(const ContextMenuParams& params);
   void OnJavaScriptExecuteResponse(int id, const base::ListValue& result);
   void OnRunJavaScriptMessage(const base::string16& message,
                               const base::string16& default_prompt,
                               const GURL& frame_url,
                               JavaScriptMessageType type,
                               IPC::Message* reply_msg);
   void OnRunBeforeUnloadConfirm(const GURL& frame_url,
                                 const base::string16& message,
                                 bool is_reload,
                                 IPC::Message* reply_msg);
   void OnRequestPlatformNotificationPermission(const GURL& origin,
                                                int request_id);
   void OnShowDesktopNotification(
       int notification_id,
       const ShowDesktopNotificationHostMsgParams& params);
   void OnCancelDesktopNotification(int notification_id);
   void OnTextSurroundingSelectionResponse(const base::string16& content,
                                           size_t start_offset,
                                           size_t end_offset);
   void OnDidAccessInitialDocument();
   void OnDidDisownOpener();
+  void OnDidAssignPageId(int32 page_id);
   void OnUpdateTitle(int32 page_id,
                      const base::string16& title,
                      blink::WebTextDirection title_direction);
   void OnUpdateEncoding(const std::string& encoding);
   void OnBeginNavigation(
       const FrameHostMsg_BeginNavigation_Params& params);
   void OnAccessibilityEvents(
       const std::vector<AccessibilityHostMsg_EventParams>& params);
   void OnAccessibilityLocationChanges(
       const std::vector<AccessibilityHostMsg_LocationChangeParams>& params);
@@ skipping 84 matching lines @@
   base::Callback<void(ui::AXEvent, int)> accessibility_testing_callback_;
   // The most recently received accessibility tree - for testing only.
   scoped_ptr<ui::AXTree> ax_tree_for_testing_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderFrameHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_FRAME_HOST_RENDER_FRAME_HOST_IMPL_H_