MetadataCallback   30 chrome/utility/media_galleries/media_metadata_parser.h   typedef base::Callback<void(scoped_ptr<MediaMetadata>)> MetadataCallback;
MetadataCallback   21 content/child/fileapi/file_system_dispatcher.cc   typedef FileSystemDispatcher::MetadataCallback MetadataCallback;
MetadataCallback   40 content/child/fileapi/file_system_dispatcher.h       const base::File::Info& file_info)> MetadataCallback;