diff -r 000000000000 -r 6474c204b198 accessible/src/atk/RootAccessibleWrap.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/accessible/src/atk/RootAccessibleWrap.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,24 @@
+/* -*- 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/. */
+
+#include "RootAccessibleWrap.h"
+
+#include "nsMai.h"
+
+using namespace mozilla::a11y;
+
+GtkWindowAccessible::GtkWindowAccessible(AtkObject* aAccessible) :
+  DummyAccessible()
+{
+  g_object_ref(aAccessible);
+  mAtkObject = aAccessible;
+}
+
+GtkWindowAccessible::~GtkWindowAccessible()
+{
+  g_object_unref(mAtkObject);
+  mAtkObject = nullptr;
+}