Don't use webmediaplayer to FullscreenController about fullscreen change

content/public/browser/render_view_host.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 CONTENT_PUBLIC_BROWSER_RENDER_VIEW_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_RENDER_VIEW_HOST_H_
 
 #include <list>
 
 #include "base/callback_forward.h"
@@ skipping 205 matching lines @@
   // Notify the render view host to select the word around the caret.
   virtual void SelectWordAroundCaret() = 0;
 
 #if defined(OS_ANDROID)
   // Selects and zooms to the find result nearest to the point (x,y)
   // defined in find-in-page coordinates.
   virtual void ActivateNearestFindResult(int request_id, float x, float y) = 0;
 
   // Asks the renderer to send the rects of the current find matches.
   virtual void RequestFindMatchRects(int current_version) = 0;
+
+  // The page has entered or exited a fullscreen state.
+  virtual void FullscreenChanged(bool is_fullscreen) = 0;
 #endif
 
  private:
   // This interface should only be implemented inside content.
   friend class RenderViewHostImpl;
   RenderViewHost() {}
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_RENDER_VIEW_HOST_H_