Add a copy or move validator to that can handle support audio and video files.

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 980 matching lines @@
         'browser/media_galleries/fileapi/media_file_system_backend.cc',
         'browser/media_galleries/fileapi/media_file_system_backend.h',
         'browser/media_galleries/fileapi/media_file_validator_factory.h',
         'browser/media_galleries/fileapi/media_file_validator_factory.cc',
         'browser/media_galleries/fileapi/media_path_filter.cc',
         'browser/media_galleries/fileapi/media_path_filter.h',
         'browser/media_galleries/fileapi/native_media_file_util.cc',
         'browser/media_galleries/fileapi/native_media_file_util.h',
         'browser/media_galleries/fileapi/picasa/picasa_finder.cc',
         'browser/media_galleries/fileapi/picasa/picasa_finder.h',
+        'browser/media_galleries/fileapi/safe_audio_video_checker.cc',
+        'browser/media_galleries/fileapi/safe_audio_video_checker.h',
         'browser/media_galleries/fileapi/safe_itunes_pref_parser_win.cc',
         'browser/media_galleries/fileapi/safe_itunes_pref_parser_win.h',
+        'browser/media_galleries/fileapi/supported_audio_video_checker.cc',
+        'browser/media_galleries/fileapi/supported_audio_video_checker.h',
         'browser/media_galleries/fileapi/supported_image_type_validator.cc',
         'browser/media_galleries/fileapi/supported_image_type_validator.h',
         'browser/media_galleries/imported_media_gallery_registry.cc',
         'browser/media_galleries/imported_media_gallery_registry.h',
         'browser/media_galleries/linux/mtp_device_delegate_impl_linux.cc',
         'browser/media_galleries/linux/mtp_device_delegate_impl_linux.h',
         'browser/media_galleries/linux/mtp_device_object_enumerator.cc',
         'browser/media_galleries/linux/mtp_device_object_enumerator.h',
         'browser/media_galleries/linux/mtp_device_task_helper.cc',
         'browser/media_galleries/linux/mtp_device_task_helper.h',
@@ skipping 2398 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' ],
         },
       ],
      },
     ],
   ],
 }