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 ae9f0bae5bdc64bd8af2d8b0139c8b2345e9e1e9..bf0c2d2478df6713d6a1f4549b522a3d3d94ccae 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.
@@ -93,6 +94,8 @@ 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);
@@ -233,6 +236,8 @@ 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_;