Remove CompositorThread dependency on WebThread

content/renderer/render_thread_impl.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_THREAD_IMPL_H_
 #define CONTENT_RENDERER_RENDER_THREAD_IMPL_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 374 matching lines @@
 
   // Timer that periodically calls IdleHandler.
   base::RepeatingTimer<RenderThreadImpl> idle_timer_;
 
   // The channel from the renderer process to the GPU process.
   scoped_refptr<GpuChannelHost> gpu_channel_;
 
   // A lazily initiated thread on which file operations are run.
   scoped_ptr<base::Thread> file_thread_;
 
-  bool compositor_initialized_;
   scoped_ptr<CompositorThread> compositor_thread_;
   scoped_refptr<IPC::ForwardingMessageFilter> compositor_output_surface_filter_;
 
   ObserverList<RenderProcessObserver> observers_;
 
   class GpuVDAContextLostCallback;
   scoped_ptr<GpuVDAContextLostCallback> context_lost_cb_;
   scoped_ptr<WebGraphicsContext3DCommandBufferImpl> gpu_vda_context3d_;
 
   scoped_ptr<AudioRendererMixerManager> audio_renderer_mixer_manager_;
   scoped_ptr<media::AudioHardwareConfig> audio_hardware_config_;
 
   HistogramCustomizer histogram_customizer_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderThreadImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_RENDER_THREAD_IMPL_H_