Move the decoder thread into VideoReceiveStream.

webrtc/video/video_receive_stream.h

Index: webrtc/video/video_receive_stream.h
diff --git a/webrtc/video/video_receive_stream.h b/webrtc/video/video_receive_stream.h
index a6e40df6cec6aa8e7d8d38886300379e83fe9754..ee25cf7d38cb647f5868c7283506d1b08639655f 100644
--- a/webrtc/video/video_receive_stream.h
+++ b/webrtc/video/video_receive_stream.h
@@ -80,12 +80,17 @@ class VideoReceiveStream : public webrtc::VideoReceiveStream,
   void SetSyncChannel(VoiceEngine* voice_engine, int audio_channel_id);
 
  private:
+  static bool DecodeThreadFunction(void* ptr);
+  void Decode();
+
   TransportAdapter transport_adapter_;
   EncodedFrameCallbackAdapter encoded_frame_proxy_;
   const VideoReceiveStream::Config config_;
   ProcessThread* const process_thread_;
   Clock* const clock_;
 
+  rtc::PlatformThread decode_thread_;
+
   CongestionController* const congestion_controller_;
   CallStats* const call_stats_;
   VieRemb* const remb_;