import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

dom/webidl/PermissionStatus.webidl

@@ -0,0 +1,20 @@
+/* -*- 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
+ * https://w3c.github.io/permissions/#status-of-a-permission
+ */
+
+enum PermissionState {
+  "granted",
+  "denied",
+  "prompt"
+};
+
+[Exposed=(Window)]
+interface PermissionStatus : EventTarget {
+  readonly attribute PermissionState state;
+  attribute EventHandler onchange;
+};