Route IPC through browser when creating a viewable command buffer.

chrome/renderer/render_widget_fullscreen_pepper.h

 // Copyright (c) 2010 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_RENDERER_RENDER_WIDGET_FULLSCREEN_PEPPER_H_
 #define CHROME_RENDERER_RENDER_WIDGET_FULLSCREEN_PEPPER_H_
 
 #include "chrome/renderer/render_widget_fullscreen.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebWidget.h"
 #include "webkit/plugins/ppapi/fullscreen_container.h"
@@ skipping 60 matching lines @@
   // Initialize the GL states and resources for compositing.
   bool InitContext();
 
   // Checks (and returns) whether accelerated compositing should be on or off,
   // and notify the browser.
   bool CheckCompositing();
 
   // The plugin instance this widget wraps.
   webkit::ppapi::PluginInstance* plugin_;
 
-#if defined(OS_MACOSX)
-  gfx::PluginWindowHandle plugin_handle_;
-#endif
   // GL context for compositing.
   ggl::Context* context_;
   unsigned int buffer_;
   unsigned int program_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderWidgetFullscreenPepper);
 };
 
 #endif  // CHROME_RENDERER_RENDER_WIDGET_FULLSCREEN_PEPPER_H_