diff -r 000000000000 -r 6474c204b198 dom/webidl/KeyboardEvent.webidl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/webidl/KeyboardEvent.webidl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,54 @@
+/* -*- 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;
+
+[Constructor(DOMString typeArg, optional KeyboardEventInit keyboardEventInitDict)]
+interface KeyboardEvent : UIEvent
+{
+  readonly attribute unsigned long    charCode;
+  readonly attribute unsigned long    keyCode;
+
+  readonly attribute boolean          altKey;
+  readonly attribute boolean          ctrlKey;
+  readonly attribute boolean          shiftKey;
+  readonly attribute boolean          metaKey;
+
+  boolean getModifierState(DOMString key);
+
+  const unsigned long DOM_KEY_LOCATION_STANDARD = 0x00;
+  const unsigned long DOM_KEY_LOCATION_LEFT     = 0x01;
+  const unsigned long DOM_KEY_LOCATION_RIGHT    = 0x02;
+  const unsigned long DOM_KEY_LOCATION_NUMPAD   = 0x03;
+  const unsigned long DOM_KEY_LOCATION_MOBILE   = 0x04;
+  const unsigned long DOM_KEY_LOCATION_JOYSTICK = 0x05;
+
+  readonly attribute unsigned long location;
+  readonly attribute boolean       repeat;
+  readonly attribute boolean       isComposing;
+
+  readonly attribute DOMString key;
+};
+
+dictionary KeyboardEventInit : UIEventInit
+{
+  DOMString      key           = "";
+  unsigned long  location      = 0;
+  boolean        ctrlKey       = false;
+  boolean        shiftKey      = false;
+  boolean        altKey        = false;
+  boolean        metaKey       = false;
+  boolean        repeat        = false;
+  boolean        isComposing   = false;
+
+  // legacy attributes
+  unsigned long  charCode      = 0;
+  unsigned long  keyCode       = 0;
+  unsigned long  which         = 0;
+};
+
+// Mozilla extensions
+KeyboardEvent implements KeyEvent;