chromium/src/third_party/blink/renderer/modules/background_sync/sync_event.idl

// Copyright 2015 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/BackgroundSync/spec/#sync-event

[
    Exposed=ServiceWorker
] interface SyncEvent : ExtendableEvent {
    constructor(DOMString type, SyncEventInit init);
    readonly attribute DOMString tag;
    readonly attribute boolean lastChance;
};