Vendor things

third-party/vendor/web-sys/webidls/enabled/ExtendableEvent.webidl

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+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * For more information on this interface, please see
+ * http://slightlyoff.github.io/ServiceWorker/spec/service_worker/index.html
+ */
+
+[Constructor(DOMString type, optional ExtendableEventInit eventInitDict),
+ Exposed=ServiceWorker]
+interface ExtendableEvent : Event {
+  // https://github.com/slightlyoff/ServiceWorker/issues/261
+  [Throws]
+  undefined waitUntil(Promise<any> p);
+};
+
+dictionary ExtendableEventInit : EventInit {
+  // Defined for the forward compatibility across the derived events
+};