/* Source: https://wicg.github.io/performance-measure-memory/#idl-index */ dictionary MemoryMeasurement { unsigned long long bytes; sequence breakdown; }; dictionary MemoryBreakdownEntry { unsigned long long bytes; sequence attribution; sequence types; }; dictionary MemoryAttribution { USVString url; MemoryAttributionContainer container; DOMString scope; }; dictionary MemoryAttributionContainer { DOMString id; USVString src; }; partial interface Performance { [Exposed=(Window,ServiceWorker,SharedWorker), CrossOriginIsolated] Promise measureUserAgentSpecificMemory(); };