Remove MediaFormat once and for all.

media/media.gyp

 # Copyright (c) 2011 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': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 86 matching lines @@
         'base/filter_collection.cc',
         'base/filter_collection.h',
         'base/filter_factories.cc',
         'base/filter_factories.h',
         'base/filter_host.h',
         'base/filters.cc',
         'base/filters.h',
         'base/h264_bitstream_converter.cc',
         'base/h264_bitstream_converter.h',
         'base/media.h',
-        'base/media_format.cc',
-        'base/media_format.h',
         'base/media_posix.cc',
         'base/media_switches.cc',
         'base/media_switches.h',
         'base/media_win.cc',
         'base/message_loop_factory.cc',
         'base/message_loop_factory.h',
         'base/message_loop_factory_impl.cc',
         'base/message_loop_factory_impl.h',
         'base/pipeline.h',
         'base/pipeline_impl.cc',
@@ skipping 579 matching lines @@
             'tools/player_x11/gl_video_renderer.h',
             'tools/player_x11/player_x11.cc',
             'tools/player_x11/x11_video_renderer.cc',
             'tools/player_x11/x11_video_renderer.h',
           ],
         },
       ],
     }],
   ],
 }