Switch BlockedContentTabHelper to use WebContentsUserData.

chrome/browser/ui/views/external_tab_container_win.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_VIEWS_EXTERNAL_TAB_CONTAINER_WIN_H_
 #define CHROME_BROWSER_UI_VIEWS_EXTERNAL_TAB_CONTAINER_WIN_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 204 matching lines @@
   void set_is_popup_window(bool is_popup_window) {
     is_popup_window_ = is_popup_window;
   }
 
   // Overridden from InfoBarContainer::Delegate:
   virtual SkColor GetInfoBarSeparatorColor() const OVERRIDE;
   virtual void InfoBarContainerStateChanged(bool is_animating) OVERRIDE;
   virtual bool DrawInfoBarArrows(int* x) const OVERRIDE;
 
   // Overridden from BlockedContentTabHelperDelegate:
-  virtual TabContents* GetConstrainingTabContents(TabContents* source) OVERRIDE;
+  virtual content::WebContents* GetConstrainingWebContents(
+      content::WebContents* source) OVERRIDE;
 
  protected:
   virtual ~ExternalTabContainerWin();
 
   // Overridden from views::NativeWidgetWin:
   virtual bool PreHandleMSG(UINT message,
                             WPARAM w_param,
                             LPARAM l_param,
                             LRESULT* result) OVERRIDE;
   virtual void PostHandleMSG(UINT message,
@@ skipping 166 matching lines @@
     return false;
   }
 
   virtual void BeforeUnloadFired(content::WebContents* tab, bool proceed,
                                  bool* proceed_to_fire_unload) {
     NOTREACHED();
   }
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_EXTERNAL_TAB_CONTAINER_WIN_H_