321                           std::function<void()> progress_callback = []() {});  in __anon2d133cc30102()
347     std::function<void()> progress_callback;  member
378       progress_callback = std::move(o.progress_callback);  in operator =()
396           progress_callback(_progress_callback) {}
494       std::function<void()> progress_callback = []() {},  in __anon2d133cc30302()
767             work_item.progress_callback);  in Initialize()
897                 options.progress_callback);  in CreateNewBackupWithMetadata()
908               options.progress_callback, contents);  in CreateNewBackupWithMetadata()
1299     uint64_t size_limit, std::function<void()> progress_callback) {  in CopyOrCreateFile()  argument
1373       progress_callback();  in CopyOrCreateFile()
1393     bool shared_checksum, std::function<void()> progress_callback,  in AddBackupFileWorkItem()  argument
1493         size_limit, progress_callback);  in AddBackupFileWorkItem()