Make VEA client of command buffer; move sync. IPC to VDA/VEA::Initialize()

content/common/gpu/client/gpu_channel_host.h

Index: content/common/gpu/client/gpu_channel_host.h
diff --git a/content/common/gpu/client/gpu_channel_host.h b/content/common/gpu/client/gpu_channel_host.h
index e073db004d4d056ec4620eb2943912369ff12bc5..d5146d77762812f62d3873c929c27ab92d0d2adf 100644
--- a/content/common/gpu/client/gpu_channel_host.h
+++ b/content/common/gpu/client/gpu_channel_host.h
@@ -22,8 +22,6 @@
 #include "ipc/ipc_channel_handle.h"
 #include "ipc/ipc_channel_proxy.h"
 #include "ipc/ipc_sync_channel.h"
-#include "media/video/video_decode_accelerator.h"
-#include "media/video/video_encode_accelerator.h"
 #include "ui/gfx/gpu_memory_buffer.h"
 #include "ui/gfx/native_widget_types.h"
 #include "ui/gfx/size.h"
@@ -43,6 +41,11 @@ namespace IPC {
 class SyncMessageFilter;
 }
 
+namespace media {
+class VideoDecodeAccelerator;
+class VideoEncodeAccelerator;
+}
+
 namespace content {
 class CommandBufferProxyImpl;
 class GpuChannelHost;
@@ -125,11 +128,11 @@ class GpuChannelHost : public IPC::Sender,
 
   // Creates a video decoder in the GPU process.
   scoped_ptr<media::VideoDecodeAccelerator> CreateVideoDecoder(
-      int command_buffer_route_id,
-      media::VideoCodecProfile profile);
+      int command_buffer_route_id);
 
   // Creates a video encoder in the GPU process.
-  scoped_ptr<media::VideoEncodeAccelerator> CreateVideoEncoder();
+  scoped_ptr<media::VideoEncodeAccelerator> CreateVideoEncoder(
+      int command_buffer_route_id);
 
   // Destroy a command buffer created by this channel.
   void DestroyCommandBuffer(CommandBufferProxyImpl* command_buffer);