diff -r 000000000000 -r 6474c204b198 dom/webidl/ScrollAreaEvent.webidl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/webidl/ScrollAreaEvent.webidl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,26 @@
+/* -*- 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/.
+ */
+
+interface WindowProxy;
+
+interface ScrollAreaEvent : UIEvent
+{
+  readonly attribute float x;
+  readonly attribute float y;
+  readonly attribute float width;
+  readonly attribute float height;
+
+  [Throws]
+  void initScrollAreaEvent(DOMString type,
+                           boolean canBubble,
+                           boolean cancelable,
+                           WindowProxy? view,
+                           long detail,
+                           float x,
+                           float y,
+                           float width,
+                           float height);
+};