Cast: Get rid of frame_id_map

media/cast/cast.gyp

 # 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.
 
 {
   'variables': {
     'include_tests%': 1,
     'chromium_code': 1,
   },
   'conditions': [
@@ skipping 93 matching lines @@
         'receiver/cast_receiver_impl.cc',
         'receiver/cast_receiver_impl.h',
         'receiver/frame_receiver.cc',
         'receiver/frame_receiver.h',
         'receiver/video_decoder.cc',
         'receiver/video_decoder.h',
         'net/rtp/cast_message_builder.cc',
         'net/rtp/cast_message_builder.h',
         'net/rtp/frame_buffer.cc',
         'net/rtp/frame_buffer.h',
-        'net/rtp/frame_id_map.cc',
-        'net/rtp/frame_id_map.h',
         'net/rtp/framer.cc',
         'net/rtp/framer.h',
         'net/rtp/receiver_stats.cc',
         'net/rtp/receiver_stats.h',
         'net/rtp/rtp_parser.cc',
         'net/rtp/rtp_parser.h',
         'net/rtp/rtp_receiver_defines.cc',
         'net/rtp/rtp_receiver_defines.h',
       ], # source
     },
@@ skipping 73 matching lines @@
         'net/rtp/rtp_packetizer.cc',
         'net/rtp/rtp_packetizer.h',
         'net/rtp/rtp_sender.cc',
         'net/rtp/rtp_sender.h',
         'net/udp_transport.cc',
         'net/udp_transport.h',
       ], # source
     },
   ],
 }