Integrate Surface requests with MediaPlayerRenderer

gpu/ipc/common/gpu_messages.h

Index: gpu/ipc/common/gpu_messages.h
diff --git a/gpu/ipc/common/gpu_messages.h b/gpu/ipc/common/gpu_messages.h
index 8dd1418c694a7af824f5ca3b3fa95689d5384a97..b1d6fdc42cbad14b8c8d5df5cd17eb24097b79d6 100644
--- a/gpu/ipc/common/gpu_messages.h
+++ b/gpu/ipc/common/gpu_messages.h
@@ -11,6 +11,7 @@
 #include <vector>
 
 #include "base/memory/shared_memory.h"
+#include "base/unguessable_token.h"
 #include "build/build_config.h"
 #include "gpu/command_buffer/common/capabilities.h"
 #include "gpu/command_buffer/common/command_buffer.h"
@@ -130,6 +131,11 @@ IPC_MESSAGE_ROUTED2(GpuStreamTextureMsg_EstablishPeer,
                     int32_t, /* primary_id */
                     int32_t /* secondary_id */)
 
+// Tells the StreamTexture to send its SurfaceTexture to the browser process,
+// via the ScopedSurfaceRequestConduit.
+IPC_MESSAGE_ROUTED1(GpuStreamTextureMsg_ForwardForSurfaceRequest,
+                    base::UnguessableToken)
+
 // Tells the GPU process to set the size of StreamTexture from the given
 // stream Id.
 IPC_MESSAGE_ROUTED1(GpuStreamTextureMsg_SetSize, gfx::Size /* size */)