Revert of Implement support for vp9 in ISO-BMFF

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 46 matching lines @@
     {
       # GN version: //media:media_features
       'target_name': 'media_features',
       'includes': [ '../build/buildflag_header.gypi' ],
       'variables': {
         'buildflag_header_path': 'media/media_features.h',
         'buildflag_flags': [
           "ENABLE_AC3_EAC3_AUDIO_DEMUXING=<(enable_ac3_eac3_audio_demuxing)",
           "ENABLE_HEVC_DEMUXING=<(enable_hevc_demuxing)",
           "ENABLE_MSE_MPEG2TS_STREAM_PARSER=<(enable_mse_mpeg2ts_stream_parser)",
-          "ENABLE_MP4_VP9_DEMUXING=0",
         ],
       },
     },
     {
       # GN version: //media
       'target_name': 'media',
       'type': '<(component)',
       'dependencies': [
         'media_features',
         '../base/base.gyp:base',
@@ skipping 1991 matching lines @@
               'dependencies': [
                 '../tools/xdisplaycheck/xdisplaycheck.gyp:xdisplaycheck',
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }