Wire up BitrateAllocation to be sent as RTCP TargetBitrate

webrtc/video/vie_encoder.h

Index: webrtc/video/vie_encoder.h
diff --git a/webrtc/video/vie_encoder.h b/webrtc/video/vie_encoder.h
index 8373a3f51d587c3bfba9ac804233a36c5d828599..7dc4feff5ec8342875df3c4317ab170e3873a389 100644
--- a/webrtc/video/vie_encoder.h
+++ b/webrtc/video/vie_encoder.h
@@ -37,6 +37,7 @@ namespace webrtc {
 
 class ProcessThread;
 class SendStatisticsProxy;
+class VideoBitrateAllocationObserver;
 
 // VieEncoder represent a video encoder that accepts raw video frames as input
 // and produces an encoded bit stream.
@@ -91,6 +92,8 @@ class ViEEncoder : public rtc::VideoSinkInterface<VideoFrame>,
   // TODO(perkj): Can we remove VideoCodec.startBitrate ?
   void SetStartBitrate(int start_bitrate_bps);
 
+  void SetBitrateObserver(VideoBitrateAllocationObserver* bitrate_observer);
+
   void ConfigureEncoder(VideoEncoderConfig config,
                         size_t max_data_payload_length,
                         bool nack_enabled);
@@ -229,6 +232,8 @@ class ViEEncoder : public rtc::VideoSinkInterface<VideoFrame>,
   int captured_frame_count_ ACCESS_ON(&encoder_queue_);
   int dropped_frame_count_ ACCESS_ON(&encoder_queue_);
 
+  VideoBitrateAllocationObserver* bitrate_observer_ ACCESS_ON(&encoder_queue_);
+
   // All public methods are proxied to |encoder_queue_|. It must must be
   // destroyed first to make sure no tasks are run that use other members.
   rtc::TaskQueue encoder_queue_;