Move FrameHost::m_globalRootScrollerController to Page

third_party/WebKit/Source/core/frame/FrameHost.h

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 80 matching lines @@
     --m_subframeCount;
   }
   int subframeCount() const;
 
  private:
   explicit FrameHost(Page&);
 
   const Member<Page> m_page;
   const Member<OverscrollController> m_overscrollController;
   const Member<ConsoleMessageStorage> m_consoleMessageStorage;
-  const Member<TopDocumentRootScrollerController>
-      m_globalRootScrollerController;
 
   int m_subframeCount;
 };
 
 }  // namespace blink
 
 #endif  // FrameHost_h