@class SFDownloadFile, NSMutableDictionary, NSObject; @protocol OS_dispatch_queue; @interface _SFDownloadStorageUsageMonitor : NSObject <SFDownloadFileDelegate, SFDownloadStorageUsageMonitorEntryDelegate> { NSMutableDictionary *_entries; SFDownloadFile *_historyFile; NSObject<OS_dispatch_queue> *_queue; } @property (readonly, nonatomic) long long usage; - (id)init; - (void).cxx_destruct; - (void)_reloadDownloadHistory; - (void)downloadFileContentsDidChange:(id)a0; - (void)downloadFileDidChangeURL:(id)a0; - (void)downloadFileWillBeDeleted:(id)a0; - (void)entryDidChangeUsage:(id)a0; @end