diff -r 000000000000 -r 6474c204b198 dom/webidl/HTMLMenuElement.webidl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/webidl/HTMLMenuElement.webidl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,59 @@
+/* -*- 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/.
+ *
+ * The origin of this IDL file is
+ * http://www.whatwg.org/specs/web-apps/current-work/#the-menu-element
+ * http://www.whatwg.org/specs/web-apps/current-work/#other-elements,-attributes-and-apis
+ *
+ * © Copyright 2004-2011 Apple Computer, Inc., Mozilla Foundation, and
+ * Opera Software ASA. You are granted a license to use, reproduce
+ * and create derivative works of this document.
+ */
+
+interface MenuBuilder;
+
+// http://www.whatwg.org/specs/web-apps/current-work/#the-menu-element
+interface HTMLMenuElement : HTMLElement {
+           [SetterThrows]
+           attribute DOMString type;
+           [SetterThrows]
+           attribute DOMString label;
+};
+
+// http://www.whatwg.org/specs/web-apps/current-work/#other-elements,-attributes-and-apis
+partial interface HTMLMenuElement {
+           [SetterThrows]
+           attribute boolean compact;
+};
+
+// Mozilla specific stuff
+partial interface HTMLMenuElement {
+  /**
+   * Creates and dispatches a trusted event named "show".
+   * The event is not cancelable and does not bubble.
+   * See http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#context-menus
+   */
+  [ChromeOnly]
+  void sendShowEvent();
+
+  /**
+   * Creates a native menu builder. The builder type is dependent on menu type.
+   * Currently, it returns nsXULContextMenuBuilder for context menus.
+   * Toolbar menus are not yet supported (the method returns null).
+   */
+  [ChromeOnly]
+  MenuBuilder createBuilder();
+
+  /*
+   * Builds a menu by iterating over menu children.
+   * See http://www.whatwg.org/specs/web-apps/current-work/multipage/interactive-elements.html#building-menus-and-toolbars
+   * The caller can use a native builder by calling createBuilder() or provide
+   * a custom builder that implements the nsIMenuBuilder interface.
+   * A custom builder can be used for example to build native context menus
+   * that are not defined using <menupopup>.
+   */
+  [ChromeOnly]
+  void build(MenuBuilder aBuilder);
+};