diff -r 000000000000 -r 6474c204b198 accessible/src/atk/RootAccessibleWrap.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/accessible/src/atk/RootAccessibleWrap.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,34 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#ifndef mozilla_a11y_RootAccessibleWrap_h__
+#define mozilla_a11y_RootAccessibleWrap_h__
+
+#include "BaseAccessibles.h"
+#include "RootAccessible.h"
+
+namespace mozilla {
+namespace a11y {
+
+typedef RootAccessible RootAccessibleWrap;
+
+/* GtkWindowAccessible is the accessible class for gtk+ native window.
+ * The instance of GtkWindowAccessible is a child of MaiAppRoot instance.
+ * It is added into root when the toplevel window is created, and removed
+ * from root when the toplevel window is destroyed.
+ */
+class GtkWindowAccessible MOZ_FINAL : public DummyAccessible
+{
+public:
+  GtkWindowAccessible(AtkObject* aAccessible);
+  virtual ~GtkWindowAccessible();
+};
+
+} // namespace a11y
+} // namespace mozilla
+
+#endif   /* mozilla_a11y_Root_Accessible_Wrap_h__ */
+