Cast: Refactor RTCP handling

media/cast/net/rtcp/rtcp_defines.cc

Index: media/cast/net/rtcp/rtcp_defines.cc
diff --git a/media/cast/net/rtcp/rtcp_defines.cc b/media/cast/net/rtcp/rtcp_defines.cc
index 63799a92df238a64eefd1ebd1374e1ce8e8a8864..9012468c07e539b6c5d60d8ce0acba68a70f778e 100644
--- a/media/cast/net/rtcp/rtcp_defines.cc
+++ b/media/cast/net/rtcp/rtcp_defines.cc
@@ -9,17 +9,12 @@
 namespace media {
 namespace cast {
 
-RtcpCastMessage::RtcpCastMessage(uint32 media_ssrc)
-    : media_ssrc_(media_ssrc), ack_frame_id_(0u), target_delay_ms_(0) {}
+RtcpCastMessage::RtcpCastMessage(uint32 ssrc)
+    : media_ssrc(ssrc), ack_frame_id(0u), target_delay_ms(0) {}
+RtcpCastMessage::RtcpCastMessage()
+    : media_ssrc(0), ack_frame_id(0u), target_delay_ms(0) {}
 RtcpCastMessage::~RtcpCastMessage() {}
 
-void RtcpCastMessage::Copy(const RtcpCastMessage& cast_message) {
-  media_ssrc_ = cast_message.media_ssrc_;
-  ack_frame_id_ = cast_message.ack_frame_id_;
-  target_delay_ms_ = cast_message.target_delay_ms_;
-  missing_frames_and_packets_ = cast_message.missing_frames_and_packets_;
-}
-
 RtcpReceiverEventLogMessage::RtcpReceiverEventLogMessage()
     : type(UNKNOWN), packet_id(0u) {}
 RtcpReceiverEventLogMessage::~RtcpReceiverEventLogMessage() {}
@@ -45,5 +40,8 @@ RtcpReceiverReferenceTimeReport::~RtcpReceiverReferenceTimeReport() {}
 RtcpEvent::RtcpEvent() : type(UNKNOWN), packet_id(0u) {}
 RtcpEvent::~RtcpEvent() {}
 
+RtcpRttReport::RtcpRttReport() {}
+RtcpRttReport::~RtcpRttReport() {}
+
 }  // namespace cast
 }  // namespace media