chromium/src/third_party/blink/renderer/core/timing/performance_long_task_timing.idl

// Copyright 2016 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://w3c.github.io/longtasks/#sec-PerformanceLongTaskTiming
[Exposed=Window]
interface PerformanceLongTaskTiming : PerformanceEntry {
    [SameObject, SaveSameObject] readonly attribute FrozenArray<TaskAttributionTiming> attribution;

    [CallWith=ScriptState, ImplementedAs=toJSONForBinding] object toJSON();
};