Cast: Refactor RTCP handling

media/cast/net/cast_transport_config.h

Index: media/cast/net/cast_transport_config.h
diff --git a/media/cast/net/cast_transport_config.h b/media/cast/net/cast_transport_config.h
index 15407cbc88b25cf3cf1b04e07b85af9b9c660429..e6a9a57f7d5680c2708d70c194ce81f59c0994e8 100644
--- a/media/cast/net/cast_transport_config.h
+++ b/media/cast/net/cast_transport_config.h
@@ -19,11 +19,6 @@
 namespace media {
 namespace cast {
 
-enum RtcpMode {
-  kRtcpCompound,     // Compound RTCP mode is described by RFC 4585.
-  kRtcpReducedSize,  // Reduced-size RTCP mode is described by RFC 5506.
-};
-
 enum Codec {
   CODEC_UNKNOWN,
   CODEC_AUDIO_OPUS,
@@ -41,6 +36,12 @@ struct CastTransportRtpConfig {
   // Identifier refering to this sender.
   uint32 ssrc;
 
+  // Identifier for incoming RTCP traffic.
+  uint32 feedback_ssrc;
+
+  // Identifier for this stream.
+  std::string c_name;
+
   // RTP payload type enum: Specifies the type/encoding of frame data.
   int rtp_payload_type;