Make NativeMediaFileUtil an AsyncFileUtil

chrome/chrome_browser.gypi

 # Copyright 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.
 
 {
   'targets': [
     {
       'target_name': 'browser',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 956 matching lines @@
         'browser/media/media_stream_capture_indicator.cc',
         'browser/media/media_stream_capture_indicator.h',
         'browser/media/media_stream_devices_controller.cc',
         'browser/media/media_stream_devices_controller.h',
         'browser/media/media_stream_infobar_delegate.cc',
         'browser/media/media_stream_infobar_delegate.h',
         'browser/media/webrtc_log_uploader.cc',
         'browser/media/webrtc_log_uploader.h',
         'browser/media/webrtc_logging_handler_host.cc',
         'browser/media/webrtc_logging_handler_host.h',
-        'browser/media_galleries/fileapi/filtering_file_enumerator.cc',
-        'browser/media_galleries/fileapi/filtering_file_enumerator.h',
         'browser/media_galleries/fileapi/itunes_finder.cc',
         'browser/media_galleries/fileapi/itunes_finder.h',
         'browser/media_galleries/fileapi/itunes_finder_mac.h',
         'browser/media_galleries/fileapi/itunes_finder_mac.mm',
         'browser/media_galleries/fileapi/itunes_finder_win.cc',
         'browser/media_galleries/fileapi/itunes_finder_win.h',
         'browser/media_galleries/fileapi/itunes/itunes_file_util.cc',
         'browser/media_galleries/fileapi/itunes/itunes_file_util.h',
         'browser/media_galleries/fileapi/media_file_system_mount_point_provider.cc',
         'browser/media_galleries/fileapi/media_file_system_mount_point_provider.h',
@@ skipping 2274 matching lines @@
             'package_name': 'org/chromium/chrome/browser/ui/toolbar',
             'template_deps': ['browser/ui/toolbar/toolbar_model_security_level_list.h'],
           },
           'includes': [ '../build/android/java_cpp_template.gypi' ],
         },
       ],
      },
     ],
   ],
 }