Added volume adjust sound behind the flag.

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 158 matching lines @@
         'audio/sample_rates.cc',
         'audio/sample_rates.h',
         'audio/scoped_loop_observer.cc',
         'audio/scoped_loop_observer.h',
         'audio/simple_sources.cc',
         'audio/simple_sources.h',
         'audio/sounds/audio_stream_handler.cc',
         'audio/sounds/audio_stream_handler.h',
         'audio/sounds/sounds_manager.cc',
         'audio/sounds/sounds_manager.h',
-        'audio/sounds/wav_audio_handler.cc',
-        'audio/sounds/wav_audio_handler.h',
+        'audio/sounds/wav_parser.cc',
+        'audio/sounds/wav_parser.h',
+        'audio/sounds/wav_reader.cc',
+        'audio/sounds/wav_reader.h',
         'audio/virtual_audio_input_stream.cc',
         'audio/virtual_audio_input_stream.h',
         'audio/virtual_audio_output_stream.cc',
         'audio/virtual_audio_output_stream.h',
         'audio/win/audio_device_listener_win.cc',
         'audio/win/audio_device_listener_win.h',
         'audio/win/audio_low_latency_input_win.cc',
         'audio/win/audio_low_latency_input_win.h',
         'audio/win/audio_low_latency_output_win.cc',
         'audio/win/audio_low_latency_output_win.h',
@@ skipping 717 matching lines @@
         'audio/audio_power_monitor_unittest.cc',
         'audio/fake_audio_consumer_unittest.cc',
         'audio/mac/audio_auhal_mac_unittest.cc',
         'audio/mac/audio_device_listener_mac_unittest.cc',
         'audio/mac/audio_low_latency_input_mac_unittest.cc',
         'audio/simple_sources_unittest.cc',
         'audio/sounds/audio_stream_handler_unittest.cc',
         'audio/sounds/sounds_manager_unittest.cc',
         'audio/sounds/test_data.cc',
         'audio/sounds/test_data.h',
-        'audio/sounds/wav_audio_handler_unittest.cc',
+        'audio/sounds/wav_parser_unittest.cc',
         'audio/virtual_audio_input_stream_unittest.cc',
         'audio/virtual_audio_output_stream_unittest.cc',
         'audio/win/audio_device_listener_win_unittest.cc',
         'audio/win/audio_low_latency_input_win_unittest.cc',
         'audio/win/audio_low_latency_output_win_unittest.cc',
         'audio/win/audio_output_win_unittest.cc',
         'audio/win/audio_unified_win_unittest.cc',
         'audio/win/core_audio_util_win_unittest.cc',
         'base/android/media_codec_bridge_unittest.cc',
         'base/android/media_source_player_unittest.cc',
@@ skipping 705 matching lines @@
                   ],
                 }],
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }