diff -r 000000000000 -r 6474c204b198 accessible/public/nsIAccessibleTableChangeEvent.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/accessible/public/nsIAccessibleTableChangeEvent.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,20 @@
+/* -*- Mode: C++; 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/. */
+
+#include "nsIAccessibleEvent.idl"
+
+[scriptable, builtinclass, uuid(df517997-ed52-4ea2-b310-2f8e0fe64572)]
+interface nsIAccessibleTableChangeEvent: nsIAccessibleEvent
+{
+  /**
+   * Return the row or column index.
+   */
+  readonly attribute long rowOrColIndex;
+
+  /**
+   * Return the number of rows or cols
+   */
+  readonly attribute long RowsOrColsCount;
+};