Cut content/browser dependency on webkit_media

webkit/media/webkit_media.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.
 
 {
   'variables': {
     'conditions': [
       ['inside_chromium_build==0', {
         'webkit_src_dir': '../../../../..',
       },{
@@ skipping 55 matching lines @@
         'crypto/key_systems.h',
         'crypto/key_systems_info.cc',
         'crypto/key_systems_info.h',
         'crypto/ppapi_decryptor.cc',
         'crypto/ppapi_decryptor.h',
         'crypto/proxy_decryptor.cc',
         'crypto/proxy_decryptor.h',
         'media_stream_audio_renderer.cc',
         'media_stream_audio_renderer.h',
         'media_stream_client.h',
-        'media_switches.cc',
-        'media_switches.h',
         'preload.h',
         'simple_video_frame_provider.cc',
         'simple_video_frame_provider.h',
         'video_frame_provider.cc',
         'video_frame_provider.h',
         'webaudiosourceprovider_impl.cc',
         'webaudiosourceprovider_impl.h',
         'webmediaplayer_delegate.h',
         'webmediaplayer_impl.cc',
         'webmediaplayer_impl.h',
@@ skipping 153 matching lines @@
               '-Wl,-exported_symbol,_PPP_InitializeModule',
               '-Wl,-exported_symbol,_PPP_ShutdownModule'
             ],
             'DYLIB_INSTALL_NAME_BASE': '@loader_path',
           },
         }],
       ],
     }
   ],
 }