Fix pushState causing stop/reload button and favicon to flicker.

content/shell/browser/shell.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_SHELL_BROWSER_SHELL_H_
 #define CONTENT_SHELL_BROWSER_SHELL_H_
 
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 47 matching lines @@
   static const int kDefaultTestWindowWidthDip;
   static const int kDefaultTestWindowHeightDip;
 
   virtual ~Shell();
 
   void LoadURL(const GURL& url);
   void LoadURLForFrame(const GURL& url, const std::string& frame_name);
   void GoBackOrForward(int offset);
   void Reload();
   void Stop();
-  void UpdateNavigationControls();
+  void UpdateNavigationControls(bool to_different_document);
   void Close();
   void ShowDevTools();
   void ShowDevToolsForElementAt(int x, int y);
   void ShowDevToolsForTest(const std::string& settings);
   void CloseDevTools();
 #if defined(TOOLKIT_GTK) || defined(OS_MACOSX)
   // Resizes the web content view to the given dimensions.
   void SizeTo(const gfx::Size& content_size);
 #endif
 
@@ skipping 33 matching lines @@
 
   // WebContentsDelegate
   virtual WebContents* OpenURLFromTab(WebContents* source,
                                       const OpenURLParams& params) OVERRIDE;
   virtual void AddNewContents(WebContents* source,
                               WebContents* new_contents,
                               WindowOpenDisposition disposition,
                               const gfx::Rect& initial_pos,
                               bool user_gesture,
                               bool* was_blocked) OVERRIDE;
-  virtual void LoadingStateChanged(WebContents* source) OVERRIDE;
+  virtual void LoadingStateChanged(WebContents* source,
+                                   bool to_different_document) OVERRIDE;
 #if defined(OS_ANDROID)
   virtual void LoadProgressChanged(WebContents* source,
                                    double progress) OVERRIDE;
 #endif
   virtual void ToggleFullscreenModeForTab(WebContents* web_contents,
                                           bool enter_fullscreen) OVERRIDE;
   virtual bool IsFullscreenForTabOrPending(
       const WebContents* web_contents) const OVERRIDE;
   virtual void RequestToLockMouse(WebContents* web_contents,
                                   bool user_gesture,
@@ skipping 150 matching lines @@
   static base::Callback<void(Shell*)> shell_created_callback_;
 
   // True if the destructur of Shell should post a quit closure on the current
   // message loop if the destructed Shell object was the last one.
   static bool quit_message_loop_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_BROWSER_SHELL_H_