diff -r 000000000000 -r 6474c204b198 dom/webidl/SimpleGestureEvent.webidl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/webidl/SimpleGestureEvent.webidl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,49 @@
+/* -*- 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/.
+ *
+ * For more information see nsIDOMSimpleGestureEvent.idl.
+ */
+
+interface WindowProxy;
+
+interface SimpleGestureEvent : MouseEvent
+{
+  const unsigned long DIRECTION_UP = 1;
+  const unsigned long DIRECTION_DOWN = 2;
+  const unsigned long DIRECTION_LEFT = 4;
+  const unsigned long DIRECTION_RIGHT = 8;
+
+  const unsigned long ROTATION_COUNTERCLOCKWISE = 1;
+  const unsigned long ROTATION_CLOCKWISE = 2;
+
+  attribute unsigned long allowedDirections;
+
+  readonly attribute unsigned long direction;
+
+  readonly attribute double delta;
+
+  readonly attribute unsigned long clickCount;
+
+  [Throws]
+  void initSimpleGestureEvent(DOMString typeArg,
+                              boolean canBubbleArg,
+                              boolean cancelableArg,
+                              WindowProxy? viewArg,
+                              long detailArg,
+                              long screenXArg,
+                              long screenYArg,
+                              long clientXArg,
+                              long clientYArg,
+                              boolean ctrlKeyArg,
+                              boolean altKeyArg,
+                              boolean shiftKeyArg,
+                              boolean metaKeyArg,
+                              unsigned short buttonArg,
+                              EventTarget? relatedTargetArg,
+                              unsigned long allowedDirectionsArg,
+                              unsigned long directionArg,
+                              double deltaArg,
+                              unsigned long clickCount);
+};