media: gpu process ipc video decoder implementation

chrome/gpu/gpu_channel.h

Index: chrome/gpu/gpu_channel.h
diff --git a/chrome/gpu/gpu_channel.h b/chrome/gpu/gpu_channel.h
index da6601f837147d5336b816015f5f7c94bfc53f48..f21007f4d6cf2ccacdeaaa3b8a02fae3f06d7b41 100644
--- a/chrome/gpu/gpu_channel.h
+++ b/chrome/gpu/gpu_channel.h
@@ -12,6 +12,7 @@
 #include "base/scoped_open_process.h"
 #include "base/scoped_ptr.h"
 #include "build/build_config.h"
+#include "chrome/common/gpu_video_common.h"
 #include "chrome/common/message_router.h"
 #include "chrome/gpu/gpu_command_buffer_stub.h"
 #include "gfx/native_widget_types.h"
@@ -72,6 +73,10 @@ class GpuChannel : public IPC::Channel::Listener,
                                       int32* route_id);
   void OnDestroyCommandBuffer(int32 route_id);
 
+  void OnGetVideoService(GpuVideoServiceInfoParam* info);
+  void OnCreateVideoDecoder(GpuVideoDecoderInfoParam* info);
+  void OnDestroyVideoDecoder(int32 decoder_id);
+
   scoped_ptr<IPC::SyncChannel> channel_;
 
   // Handle to the renderer process who is on the other side of the channel.