diff -r 000000000000 -r 6474c204b198 dom/webidl/DragEvent.webidl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/webidl/DragEvent.webidl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,30 @@
+/* -*- 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 DragEvent : MouseEvent
+{
+  readonly attribute DataTransfer? dataTransfer;
+
+  [Throws]
+  void initDragEvent(DOMString type,
+                     boolean canBubble,
+                     boolean cancelable,
+                     WindowProxy? aView,
+                     long aDetail,
+                     long aScreenX,
+                     long aScreenY,
+                     long aClientX,
+                     long aClientY,
+                     boolean aCtrlKey,
+                     boolean aAltKey,
+                     boolean aShiftKey,
+                     boolean aMetaKey,
+                     unsigned short aButton,
+                     EventTarget? aRelatedTarget,
+                     DataTransfer? aDataTransfer);
+};