media: Remove FilterCollection.

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 261 matching lines @@
         'base/decrypt_config.cc',
         'base/decrypt_config.h',
         'base/decryptor.cc',
         'base/decryptor.h',
         'base/demuxer.cc',
         'base/demuxer.h',
         'base/demuxer_stream.cc',
         'base/demuxer_stream.h',
         'base/djb2.cc',
         'base/djb2.h',
-        'base/filter_collection.cc',
-        'base/filter_collection.h',
         'base/keyboard_event_counter.cc',
         'base/keyboard_event_counter.h',
         'base/media.cc',
         'base/media.h',
         'base/media_file_checker.cc',
         'base/media_file_checker.h',
         'base/media_keys.cc',
         'base/media_keys.h',
         'base/media_log.cc',
         'base/media_log.h',
@@ skipping 1434 matching lines @@
                   ],
                 }],
               ],
             }],
           ],
         },
       ],
     }],
   ],
 }