We have a problem in the process on destroying WebContentsImpl because

chrome/browser/ui/android/infobars/auto_login_prompter.h

 // Copyright 2014 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 CHROME_BROWSER_UI_ANDROID_INFOBARS_AUTO_LOGIN_PROMPTER_H_
 #define CHROME_BROWSER_UI_ANDROID_INFOBARS_AUTO_LOGIN_PROMPTER_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
@@ skipping 35 matching lines @@
   virtual ~AutoLoginPrompter();
 
   static void ShowInfoBarUIThread(Params params,
                                   const GURL& url,
                                   int child_id,
                                   int route_id);
 
   virtual void DidStopLoading(
       content::RenderViewHost* render_view_host) OVERRIDE;
 
-  virtual void WebContentsDestroyed(
-      content::WebContents* web_contents) OVERRIDE;
+  virtual void WebContentsDestroyed() OVERRIDE;
 
   // Add the infobar to the WebContents, if it's still needed.
   void AddInfoBarToWebContents();
 
   const Params params_;
   const GURL url_;
   bool infobar_shown_;
 
   DISALLOW_COPY_AND_ASSIGN(AutoLoginPrompter);
 };
 
 #endif  // CHROME_BROWSER_UI_ANDROID_INFOBARS_AUTO_LOGIN_PROMPTER_H_