diff -r 000000000000 -r 6474c204b198 dom/webidl/CompositionEvent.webidl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/webidl/CompositionEvent.webidl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,29 @@
+/* -*- 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/.
+ *
+ * http://dev.w3.org/2006/webapi/DOM-Level-3-Events/html/DOM3-Events.html#events-CompositionEvent
+ *
+ * Copyright © 2012 W3C® (MIT, ERCIM, Keio), All Rights Reserved. W3C
+ * liability, trademark and document use rules apply.
+ */
+
+interface WindowProxy;
+
+interface CompositionEvent : UIEvent
+{
+  readonly attribute DOMString? data;
+  readonly attribute DOMString  locale;
+};
+
+partial interface CompositionEvent
+{
+  [Throws]
+  void initCompositionEvent(DOMString typeArg,
+                            boolean canBubbleArg,
+                            boolean cancelableArg,
+                            WindowProxy? viewArg,
+                            DOMString? dataArg,
+                            DOMString localeArg);
+};