Add media::VideoEncodeAccelerator with WebRTC integration

content/renderer/render_thread_impl.h

Index: content/renderer/render_thread_impl.h
diff --git a/content/renderer/render_thread_impl.h b/content/renderer/render_thread_impl.h
index a0bda15ceac993388422374446e572f70283ca0a..c59317a49fb6f4f6b161e0f19d115c21d8c78502 100644
--- a/content/renderer/render_thread_impl.h
+++ b/content/renderer/render_thread_impl.h
@@ -19,7 +19,6 @@
 #include "content/common/gpu/client/gpu_channel_host.h"
 #include "content/common/gpu/gpu_process_launch_causes.h"
 #include "content/public/renderer/render_thread.h"
-#include "content/renderer/media/renderer_gpu_video_decoder_factories.h"
 #include "ipc/ipc_channel_proxy.h"
 #include "ui/gfx/native_widget_types.h"
 
@@ -54,7 +53,7 @@ class ForwardingMessageFilter;
 
 namespace media {
 class AudioHardwareConfig;
-class GpuVideoDecoderFactories;
+class GpuVideoAcceleratorFactories;
 }
 
 namespace v8 {
@@ -256,9 +255,8 @@ class CONTENT_EXPORT RenderThreadImpl : public RenderThread,
   // not sent for at least one notification delay.
   void PostponeIdleNotification();
 
-  // Gets gpu factories, which will run on |factories_loop|. Returns NULL if VDA
-  // is disabled or a graphics context cannot be obtained.
-  scoped_refptr<RendererGpuVideoDecoderFactories> GetGpuFactories(
+  // Gets gpu factories, which will run on |factories_loop|.
+  scoped_refptr<media::GpuVideoAcceleratorFactories> GetGpuFactories(
       const scoped_refptr<base::MessageLoopProxy>& factories_loop);
 
   // Returns a graphics context shared among all