Remove unused code in the RenderProcess[Impl]

content/renderer/render_process.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_RENDERER_RENDER_PROCESS_H_
 #define CONTENT_RENDERER_RENDER_PROCESS_H_
 
 #include "content/child/child_process.h"
-#include "skia/ext/platform_canvas.h"
-
-class TransportDIB;
-
-namespace gfx {
-class Rect;
-}
 
 namespace content {
 
 // A abstract interface representing the renderer end of the browser<->renderer
 // connection. The opposite end is the RenderProcessHost. This is a singleton
 // object for each renderer.
 //
 // RenderProcessImpl implements this interface for the regular browser.
 // MockRenderProcess implements this interface for certain tests, especially
 // ones derived from RenderViewTest.
@@ skipping 16 matching lines @@
     return static_cast<RenderProcess*>(ChildProcess::current());
   }
 
  private:
   DISALLOW_COPY_AND_ASSIGN(RenderProcess);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_PROCESS_H_