SupportedAudioVideoExtensions   45 chrome/browser/media_galleries/fileapi/supported_audio_video_checker.cc   DISALLOW_COPY_AND_ASSIGN(SupportedAudioVideoExtensions);
SupportedAudioVideoExtensions   48 chrome/browser/media_galleries/fileapi/supported_audio_video_checker.cc base::LazyInstance<SupportedAudioVideoExtensions> g_audio_video_extensions =