Wire up BitrateAllocation to be sent as RTCP TargetBitrate

webrtc/modules/rtp_rtcp/include/rtp_rtcp.h

Index: webrtc/modules/rtp_rtcp/include/rtp_rtcp.h
diff --git a/webrtc/modules/rtp_rtcp/include/rtp_rtcp.h b/webrtc/modules/rtp_rtcp/include/rtp_rtcp.h
index 2812ad989060cc16eba30e095cb314672c123203..d1f59cee236f8e7b40000833f0ad32a4547af676 100644
--- a/webrtc/modules/rtp_rtcp/include/rtp_rtcp.h
+++ b/webrtc/modules/rtp_rtcp/include/rtp_rtcp.h
@@ -424,6 +424,8 @@ class RtpRtcp : public Module {
   // BWE feedback packets.
   virtual bool SendFeedbackPacket(const rtcp::TransportFeedback& packet) = 0;
 
+  virtual void SetVideoBitrateAllocation(const BitrateAllocation& bitrate) = 0;
+
   // **************************************************************************
   // Audio
   // **************************************************************************