diff -r 000000000000 -r 6474c204b198 accessible/src/xpcom/xpcAccessibleSelectable.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/accessible/src/xpcom/xpcAccessibleSelectable.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,41 @@
+/* -*- 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_xpcAccessibleSelectable_h_
+#define mozilla_a11y_xpcAccessibleSelectable_h_
+
+#include "nsIAccessibleSelectable.h"
+
+class nsIAccessible;
+class nsIArray;
+
+namespace mozilla {
+namespace a11y {
+
+class xpcAccessibleSelectable : public nsIAccessibleSelectable
+{
+public:
+  NS_IMETHOD GetSelectedItems(nsIArray** aSelectedItems) MOZ_FINAL;
+  NS_IMETHOD GetSelectedItemCount(uint32_t* aSelectedItemCount) MOZ_FINAL;
+  NS_IMETHOD GetSelectedItemAt(uint32_t aIndex, nsIAccessible** aItem) MOZ_FINAL;
+  NS_IMETHOD ScriptableIsItemSelected(uint32_t aIndex, bool* aIsSelected) MOZ_FINAL;
+  NS_IMETHOD ScriptableAddItemToSelection(uint32_t aIndex) MOZ_FINAL;
+  NS_IMETHOD ScriptableRemoveItemFromSelection(uint32_t aIndex) MOZ_FINAL;
+  NS_IMETHOD ScriptableSelectAll(bool* aIsMultiSelect) MOZ_FINAL;
+  NS_IMETHOD ScriptableUnselectAll() MOZ_FINAL;
+
+private:
+  xpcAccessibleSelectable() { }
+  friend class Accessible;
+
+  xpcAccessibleSelectable(const xpcAccessibleSelectable&) MOZ_DELETE;
+  xpcAccessibleSelectable& operator =(const xpcAccessibleSelectable&) MOZ_DELETE;
+};
+
+} // namespace a11y
+} // namespace mozilla
+
+#endif