cast: Wire upp logging to be sent over RTCP between receiver and sender.

media/cast/logging/logging_impl.h

Index: media/cast/logging/logging_impl.h
diff --git a/media/cast/logging/logging_impl.h b/media/cast/logging/logging_impl.h
index d065655457fdfd92ab8aea1bcf182c60d8765980..09da4edaa6321f63f8810255566126bf7480287a 100644
--- a/media/cast/logging/logging_impl.h
+++ b/media/cast/logging/logging_impl.h
@@ -65,6 +65,9 @@ class LoggingImpl : public base::NonThreadSafe {
   FrameRawMap GetFrameRawData();
   PacketRawMap GetPacketRawData();
   GenericRawMap GetGenericRawData();
+  AudioRtcpRawMap GetAudioRtcpRawData();
+  VideoRtcpRawMap GetVideoRtcpRawData();
+
   // Get stats only (computed when called). Triggers UMA stats when enabled.
   const FrameStatsMap* GetFrameStatsData(const base::TimeTicks& now);
   const PacketStatsMap* GetPacketStatsData(const base::TimeTicks& now);