ui/compositor: move the browser compositor thread to the ContextFactory

content/browser/compositor/gpu_process_transport_factory.h

Index: content/browser/compositor/gpu_process_transport_factory.h
diff --git a/content/browser/compositor/gpu_process_transport_factory.h b/content/browser/compositor/gpu_process_transport_factory.h
index 0bd5c05411c4e1e054f6c87118ae32d9846e9f60..4131dc9a49c3db00575dd4403c237456a4e9968a 100644
--- a/content/browser/compositor/gpu_process_transport_factory.h
+++ b/content/browser/compositor/gpu_process_transport_factory.h
@@ -15,6 +15,10 @@
 #include "content/browser/compositor/image_transport_factory.h"
 #include "ui/compositor/compositor.h"
 
+namespace base {
+class Thread;
+}
+
 namespace content {
 class BrowserCompositorOutputSurface;
 class BrowserCompositorOutputSurfaceProxy;
@@ -47,6 +51,7 @@ class GpuProcessTransportFactory
       SharedMainThreadContextProvider() OVERRIDE;
   virtual bool DoesCreateTestContexts() OVERRIDE;
   virtual cc::SharedBitmapManager* GetSharedBitmapManager() OVERRIDE;
+  virtual base::MessageLoopProxy* GetCompositorMessageLoop() OVERRIDE;
 
   // ImageTransportFactory implementation.
   virtual gfx::GLSurfaceHandle GetSharedSurfaceHandle() OVERRIDE;
@@ -66,6 +71,7 @@ class GpuProcessTransportFactory
   void OnLostMainThreadSharedContext();
 
   typedef std::map<ui::Compositor*, PerCompositorData*> PerCompositorDataMap;
+  scoped_ptr<base::Thread> compositor_thread_;
   PerCompositorDataMap per_compositor_data_;
   scoped_refptr<ContextProviderCommandBuffer> shared_main_thread_contexts_;
   scoped_ptr<GLHelper> gl_helper_;