diff -r 000000000000 -r 6474c204b198 dom/interfaces/apps/mozIApplicationClearPrivateDataParams.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/interfaces/apps/mozIApplicationClearPrivateDataParams.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,19 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=8 et :
+ */
+/* 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/. */
+
+#include "nsISupports.idl"
+
+[scriptable, uuid(ba0e6c8e-8c03-4b9b-8f9b-4fb14216f56e)]
+interface mozIApplicationClearPrivateDataParams : nsISupports
+{
+  readonly attribute unsigned long appId;
+  readonly attribute boolean browserOnly;
+};
+
+%{C++
+#define TOPIC_WEB_APP_CLEAR_DATA "webapps-clear-data"
+%}