diff -r 000000000000 -r 6474c204b198 dom/quota/nsIUsageCallback.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/quota/nsIUsageCallback.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,20 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* 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"
+
+interface nsIURI;
+
+[scriptable, function, uuid(7b0f9928-0ddc-42c7-b9f2-6b2308b90b18)]
+interface nsIUsageCallback : nsISupports
+{
+  void
+  onUsageResult(in nsIURI aURI,
+                in unsigned long long aUsage,
+                in unsigned long long aFileUsage,
+                in unsigned long aAppId,
+                in boolean aInMozBrowserOnly);
+};