Switch BookmarkTabHelper to use WebContentsUserData.

chrome/browser/ui/bookmarks/bookmark_tab_helper_delegate.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_TAB_HELPER_DELEGATE_H_
 #define CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_TAB_HELPER_DELEGATE_H_
 
 #include "base/basictypes.h"
 
-class TabContents;
+namespace content {
+class WebContents;
+}
 
 // Objects implement this interface to get notified about changes in the
 // BookmarkTabHelper and to provide necessary functionality.
 class BookmarkTabHelperDelegate {
  public:
   // Notification that the starredness of the current URL changed.
-  virtual void URLStarredChanged(TabContents* source, bool starred) = 0;
+  virtual void URLStarredChanged(content::WebContents* web_contents,
+                                 bool starred) = 0;
 
  protected:
   virtual ~BookmarkTabHelperDelegate();
 };
 
 #endif  // CHROME_BROWSER_UI_BOOKMARKS_BOOKMARK_TAB_HELPER_DELEGATE_H_