third_party/blink/renderer/core/timing/performance_event_timing.idl

// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// https://wicg.github.io/event-timing/#sec-performance-event-timing
[Exposed=Window]
interface PerformanceEventTiming : PerformanceEntry {
    readonly attribute DOMHighResTimeStamp processingStart;
    readonly attribute DOMHighResTimeStamp processingEnd;
    readonly attribute boolean cancelable;

    // TODO(peria): toJSON is not in spec. https://crbug.com/736332
    [CallWith=ScriptState, ImplementedAs=toJSONForBinding] object toJSON();
};