Introduce AudioHardwareConfig for renderer side audio device info.

content/content_renderer.gypi

 # 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.
 
 {
   'dependencies': [
     '../jingle/jingle.gyp:jingle_glue',
     '../net/net.gyp:net',
     '../skia/skia.gyp:skia',
     '../third_party/hyphen/hyphen.gyp:hyphen',
@@ skipping 96 matching lines @@
     'renderer/input_tag_speech_dispatcher.cc',
     'renderer/input_tag_speech_dispatcher.h',
     'renderer/java/java_bridge_channel.cc',
     'renderer/java/java_bridge_channel.h',
     'renderer/java/java_bridge_dispatcher.cc',
     'renderer/java/java_bridge_dispatcher.h',
     'renderer/load_progress_tracker.cc',
     'renderer/load_progress_tracker.h',
     'renderer/media/audio_device_factory.cc',
     'renderer/media/audio_device_factory.h',
-    'renderer/media/audio_hardware.cc',
-    'renderer/media/audio_hardware.h',
     'renderer/media/audio_input_message_filter.cc',
     'renderer/media/audio_input_message_filter.h',
     'renderer/media/audio_message_filter.cc',
     'renderer/media/audio_message_filter.h',
     'renderer/media/audio_renderer_mixer_manager.cc',
     'renderer/media/audio_renderer_mixer_manager.h',
     'renderer/media/local_video_capture.cc',
     'renderer/media/local_video_capture.h',
     'renderer/media/media_stream_center.h',
     'renderer/media/media_stream_dependency_factory.h',
@@ skipping 287 matching lines @@
     }],
   ],
   'target_conditions': [
     ['OS=="android"', {
       'sources/': [
         ['include', '^renderer/render_view_linux\\.cc$'],
       ],
     }],
   ],
 }