Convert enable_mpeg2ts into a new-style buildflag

media/media.gyp

 # Copyright (c) 2012 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,
     # Override to dynamically link the cras (ChromeOS audio) library.
     'use_cras%': 0,
     # Option e.g. for Linux distributions to link pulseaudio directly
@@ skipping 30 matching lines @@
         'enable_hevc_demuxing%': 0,
       }],
     ],
   },
   'includes': [
     'media_cdm.gypi',
     'media_variables.gypi',
   ],
   'targets': [
     {
+      # GN version: //media:media_features
+      'target_name': 'media_features',
+      'includes': [ '../build/buildflag_header.gypi' ],
+      'variables': {
+        'buildflag_header_path': 'media/media_features.h',
+        'variables': {
+          'conditions': [
+            ['chromecast == 1', {
+              'enable_mse_mpeg2ts_stream_parser%': 1,
+            }, {
+              'enable_mse_mpeg2ts_stream_parser%': 0,
+            }],
+          ],
+        },
+        'buildflag_flags': [
+          "ENABLE_MSE_MPEG2TS_STREAM_PARSER=<(enable_mse_mpeg2ts_stream_parser)",
+        ],
+      },
+    },
+    {
       # GN version: //media
       'target_name': 'media',
       'type': '<(component)',
       'dependencies': [
+        'media_features',
         '../base/base.gyp:base',
         '../base/base.gyp:base_i18n',
         '../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
         '../crypto/crypto.gyp:crypto',
         '../gpu/gpu.gyp:command_buffer_common',
         '../skia/skia.gyp:skia',
         '../third_party/libwebm/libwebm.gyp:libwebm',
         '../third_party/libyuv/libyuv.gyp:libyuv',
         '../third_party/opus/opus.gyp:opus',
         '../ui/events/events.gyp:events_base',
@@ skipping 967 matching lines @@
         ['proprietary_codecs==1', {
           'sources': [
             'cdm/cenc_utils.cc',
             'cdm/cenc_utils.h',
             'filters/ffmpeg_aac_bitstream_converter.cc',
             'filters/ffmpeg_aac_bitstream_converter.h',
             'filters/ffmpeg_h264_to_annex_b_bitstream_converter.cc',
             'filters/ffmpeg_h264_to_annex_b_bitstream_converter.h',
             'filters/h264_to_annex_b_bitstream_converter.cc',
             'filters/h264_to_annex_b_bitstream_converter.h',
             'formats/mp2t/es_adapter_video.cc',

[ddorwin, 2016/01/04 22:19:45]

Ditto.

             'formats/mp2t/es_adapter_video.h',
             'formats/mp2t/es_parser.cc',
             'formats/mp2t/es_parser.h',
             'formats/mp2t/es_parser_adts.cc',
             'formats/mp2t/es_parser_adts.h',
             'formats/mp2t/es_parser_h264.cc',
             'formats/mp2t/es_parser_h264.h',
             'formats/mp2t/es_parser_mpeg1audio.cc',
             'formats/mp2t/es_parser_mpeg1audio.h',
             'formats/mp2t/mp2t_common.h',
@@ skipping 1089 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }