MediaFileSystemRegistry  625 chrome/browser/media_galleries/media_file_system_registry.cc class MediaFileSystemRegistry::MediaFileSystemContextImpl
MediaFileSystemRegistry  726 chrome/browser/media_galleries/media_file_system_registry.cc MediaFileSystemRegistry::MediaFileSystemRegistry()
MediaFileSystemRegistry  731 chrome/browser/media_galleries/media_file_system_registry.cc MediaFileSystemRegistry::~MediaFileSystemRegistry() {