diff -r 000000000000 -r 6474c204b198 layout/xul/nsIMenuBoxObject.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/layout/xul/nsIMenuBoxObject.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,30 @@
+/* -*- Mode: C++; 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/. */
+
+#include "nsISupports.idl"
+
+interface nsIDOMElement;
+interface nsIDOMKeyEvent;
+
+[scriptable, uuid(689ebf3d-0184-450a-9bfa-5a26be0e7a8c)]
+interface nsIMenuBoxObject : nsISupports
+{
+  void openMenu(in boolean openFlag);
+
+  attribute nsIDOMElement activeChild;
+
+  boolean handleKeyPress(in nsIDOMKeyEvent keyEvent);
+
+  // true if the menu or menubar was opened via a keypress.
+  readonly attribute boolean openedWithKey;
+};
+
+%{C++
+class nsIBoxObject;
+
+nsresult
+NS_NewMenuBoxObject(nsIBoxObject** aResult);
+
+%}