Create video and audio decoder threads on demand.

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 PulseAudio library.
     'use_pulseaudio%': 0,
   },
@@ skipping 595 matching lines @@
         'base/video_frame_unittest.cc',
         'base/video_util_unittest.cc',
         'base/yuv_convert_unittest.cc',
         'crypto/aes_decryptor_unittest.cc',
         'ffmpeg/ffmpeg_common_unittest.cc',
         'filters/audio_renderer_algorithm_base_unittest.cc',
         'filters/audio_renderer_base_unittest.cc',
         'filters/bitstream_converter_unittest.cc',
         'filters/chunk_demuxer_unittest.cc',
         'filters/ffmpeg_audio_decoder_unittest.cc',
+        'filters/ffmpeg_decoder_unittest.h',
         'filters/ffmpeg_demuxer_unittest.cc',
         'filters/ffmpeg_glue_unittest.cc',
         'filters/ffmpeg_h264_bitstream_converter_unittest.cc',
         'filters/ffmpeg_video_decoder_unittest.cc',
         'filters/file_data_source_unittest.cc',
         'filters/pipeline_integration_test.cc',
         'filters/pipeline_integration_test_base.cc',
         'filters/video_renderer_base_unittest.cc',
         'video/capture/video_capture_device_unittest.cc',
         'webm/cluster_builder.cc',
@@ skipping 321 matching lines @@
             '../third_party/ffmpeg/ffmpeg.gyp:ffmpeg',
           ],
           'sources': [
             'tools/media_bench/media_bench.cc',
           ],
         },
       ],
     }]
   ],
 }