cast: Split Rtcp into two for sender and receiver

media/cast/net/rtcp/rtcp_defines.h

Index: media/cast/net/rtcp/rtcp_defines.h
diff --git a/media/cast/net/rtcp/rtcp_defines.h b/media/cast/net/rtcp/rtcp_defines.h
index de6af424a0b8cae574c90acc956aa4f1578f9273..275e2896bf3c01a1b8e4e64562989376e3d62af5 100644
--- a/media/cast/net/rtcp/rtcp_defines.h
+++ b/media/cast/net/rtcp/rtcp_defines.h
@@ -2,10 +2,12 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef MEDIA_CAST_RTCP_RTCP_DEFINES_H_
-#define MEDIA_CAST_RTCP_RTCP_DEFINES_H_
+#ifndef MEDIA_CAST_NET_RTCP_RTCP_DEFINES_H_
+#define MEDIA_CAST_NET_RTCP_RTCP_DEFINES_H_
 
 #include <list>
+#include <utility>
+#include <vector>
 
 #include "base/callback_forward.h"
 #include "base/memory/scoped_ptr.h"
@@ -120,7 +122,7 @@ struct RtpReceiverStatistics {
   uint32 jitter;
 };
 
-// These are intended to only be created using Rtcp::ConvertToNTPAndSave.
+// Created on a RTP receiver to be passed over IPC.
 struct RtcpTimeData {
   uint32 ntp_seconds;
   uint32 ntp_fraction;
@@ -145,4 +147,4 @@ struct SendRtcpFromRtpReceiver_Params {
 }  // namespace cast
 }  // namespace media
 
-#endif  // MEDIA_CAST_RTCP_RTCP_DEFINES_H_
+#endif  // MEDIA_CAST_NET_RTCP_RTCP_DEFINES_H_