Remove FrameHost::subFrameCount()

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 51 matching lines @@
   ~FrameHost();
 
   Page& page();
   const Page& page() const;
 
   BrowserControls& browserControls();
   const BrowserControls& browserControls() const;
 
   DECLARE_TRACE();
 
-  void incrementSubframeCount();
-  void decrementSubframeCount();
-  int subframeCount() const;
-
  private:
   explicit FrameHost(Page&);
 
   const Member<Page> m_page;
 };
 
 }  // namespace blink
 
 #endif  // FrameHost_h