FilenameDeterminedCallback 84 content/shell/browser/shell_download_manager_delegate.cc FilenameDeterminedCallback filename_determined_callback = FilenameDeterminedCallback 128 content/shell/browser/shell_download_manager_delegate.cc const FilenameDeterminedCallback& callback) { FilenameDeterminedCallback 48 content/shell/browser/shell_download_manager_delegate.h const FilenameDeterminedCallback& callback);