We have a problem in the process on destroying WebContentsImpl because

chrome/browser/ui/website_settings/permission_bubble_manager.h

Index: chrome/browser/ui/website_settings/permission_bubble_manager.h
diff --git a/chrome/browser/ui/website_settings/permission_bubble_manager.h b/chrome/browser/ui/website_settings/permission_bubble_manager.h
index bbf8e85fd4296287312056e52b024a085514cd39..c21be9053301696dd4251716f3f172d3bbf7ad0c 100644
--- a/chrome/browser/ui/website_settings/permission_bubble_manager.h
+++ b/chrome/browser/ui/website_settings/permission_bubble_manager.h
@@ -73,8 +73,7 @@ class PermissionBubbleManager
   // they will be finalized as if canceled by the user.
   virtual void NavigationEntryCommitted(
       const content::LoadCommittedDetails& details) OVERRIDE;
-  virtual void WebContentsDestroyed(
-      content::WebContents* web_contents) OVERRIDE;
+  virtual void WebContentsDestroyed() OVERRIDE;
 
   // PermissionBubbleView::Delegate:
   virtual void ToggleAccept(int request_index, bool new_value) OVERRIDE;