chromium/third_party/blink/renderer/core/timing/back_forward_cache_restoration.idl

// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

[RuntimeEnabled=NavigationId,Exposed=Window]
interface BackForwardCacheRestoration : PerformanceEntry {
    readonly attribute DOMHighResTimeStamp pageshowEventStart;
    readonly attribute DOMHighResTimeStamp pageshowEventEnd;

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