diff -r 000000000000 -r 6474c204b198 accessible/src/atk/nsMai.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/accessible/src/atk/nsMai.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,46 @@
+/* -*- 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 __NS_MAI_H__
+#define __NS_MAI_H__
+
+#include <atk/atk.h>
+#include <glib.h>
+#include <glib-object.h>
+
+#include "AccessibleWrap.h"
+
+#define MAI_TYPE_ATK_OBJECT             (mai_atk_object_get_type ())
+#define MAI_ATK_OBJECT(obj)             (G_TYPE_CHECK_INSTANCE_CAST ((obj), \
+                                         MAI_TYPE_ATK_OBJECT, MaiAtkObject))
+#define MAI_ATK_OBJECT_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST ((klass), \
+                                         MAI_TYPE_ATK_OBJECT, \
+                                         MaiAtkObjectClass))
+#define IS_MAI_OBJECT(obj)              (G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
+                                         MAI_TYPE_ATK_OBJECT))
+#define IS_MAI_OBJECT_CLASS(klass)      (G_TYPE_CHECK_CLASS_TYPE ((klass), \
+                                         MAI_TYPE_ATK_OBJECT))
+#define MAI_ATK_OBJECT_GET_CLASS(obj)   (G_TYPE_INSTANCE_GET_CLASS ((obj), \
+                                         MAI_TYPE_ATK_OBJECT, \
+                                         MaiAtkObjectClass))
+GType mai_atk_object_get_type(void);
+GType mai_util_get_type();
+mozilla::a11y::AccessibleWrap* GetAccessibleWrap(AtkObject* aAtkObj);
+
+extern int atkMajorVersion, atkMinorVersion;
+
+/**
+ * Return true if the loaded version of libatk-1.0.so is at least
+ * aMajor.aMinor.0.
+ */
+static inline bool
+IsAtkVersionAtLeast(int aMajor, int aMinor)
+{
+  return aMajor < atkMajorVersion ||
+         (aMajor == atkMajorVersion && aMinor <= atkMinorVersion);
+}
+
+#endif /* __NS_MAI_H__ */