Implement StreamTexture::BindTexImage.

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 81ddbffbcdbb529e38745623d111bde49e0a329e..fe36b6a93b7c545c256cbfa8d26f7c4819174532 100644
--- a/content/common/gpu/client/gpu_channel_host.h
+++ b/content/common/gpu/client/gpu_channel_host.h
@@ -90,6 +90,9 @@ class CONTENT_EXPORT GpuChannelHostFactory
       int32 surface_id,
       const GPUCreateCommandBufferConfig& init_params,
       int32 route_id) = 0;
+  virtual bool CreateStreamTexture(int32 image_id,
+                                   int32 route_id,
+                                   int32 stream_id) = 0;
 };
 
 // Encapsulates an IPC channel between the client and one GPU process.
@@ -194,6 +197,8 @@ class GpuChannelHost : public IPC::Sender,
   // Generate a route ID guaranteed to be unique for this channel.
   int32 GenerateRouteID();
 
+  unsigned CreateStreamTexture(int32 image_id);
+
  private:
   friend class base::RefCountedThreadSafe<GpuChannelHost>;
   GpuChannelHost(GpuChannelHostFactory* factory,
@@ -278,6 +283,8 @@ class GpuChannelHost : public IPC::Sender,
   ProxyMap proxies_;
   ProxyFlushInfo flush_info_;
 
+  int command_buffer_routing_id_;
+
   DISALLOW_COPY_AND_ASSIGN(GpuChannelHost);
 };