import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/webidl/NotificationEvent.webidl

@@ -0,0 +1,27 @@
+/* -*- 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/.
+ *
+ * The origin of this IDL file is
+ * http://notifications.spec.whatwg.org/
+ *
+ * Copyright:
+ * To the extent possible under law, the editors have waived all copyright and
+ * related or neighboring rights to this work.
+ */
+
+[Constructor(DOMString type, NotificationEventInit eventInitDict),
+ Exposed=ServiceWorker,Func="mozilla::dom::Notification::PrefEnabled"]
+interface NotificationEvent : ExtendableEvent {
+  readonly attribute Notification notification;
+};
+
+dictionary NotificationEventInit : ExtendableEventInit {
+  required Notification notification;
+};
+
+partial interface ServiceWorkerGlobalScope {
+  attribute EventHandler onnotificationclick;
+  attribute EventHandler onnotificationclose;
+};