[Cast] Clean-up RtpCastHeader and RtpParser, removing the last WebRTC dependency.

media/cast/transport/cast_transport_defines.h

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_CAST_TRANSPORT_CAST_TRANSPORT_DEFINES_H_
 #define MEDIA_CAST_TRANSPORT_CAST_TRANSPORT_DEFINES_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 75 matching lines @@
     kRtcpCast   = 0x20000,
     kRtcpSenderLog = 0x40000,
     kRtcpReceiverLog = 0x80000,
   };
 
 // Each uint16 represents one packet id within a cast frame.
 typedef std::set<uint16> PacketIdSet;
 // Each uint8 represents one cast frame.
 typedef std::map<uint8, PacketIdSet> MissingFramesAndPacketsMap;
 
+// TODO(miu): UGLY IN-LINE DEFINITION IN HEADER FILE!  Move to appropriate
+// location, separated into .h and .cc files.
 class FrameIdWrapHelper {
  public:
   FrameIdWrapHelper()
       : first_(true), frame_id_wrap_count_(0), range_(kLowRange) {}
 
   uint32 MapTo32bitsFrameId(const uint8 over_the_wire_frame_id) {
     if (first_) {
       first_ = false;
       if (over_the_wire_frame_id == 0xff) {
         // Special case for startup.
@@ skipping 52 matching lines @@
   base::TimeDelta recorded_delta = time_ticks - zero_time;
   // Timestamp is in 90 KHz for video.
   return static_cast<uint32>(recorded_delta.InMilliseconds() * 90);
 }
 
 }  // namespace transport
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_TRANSPORT_CAST_TRANSPORT_DEFINES_H_