diff -r 000000000000 -r 6474c204b198 accessible/src/xpcom/xpcAccessibleTableCell.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/accessible/src/xpcom/xpcAccessibleTableCell.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,47 @@
+/* -*- 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_xpcom_xpcAccessibletableCell_h_
+#define mozilla_a11y_xpcom_xpcAccessibletableCell_h_
+
+#include "nscore.h"
+
+class nsIAccessibleTable;
+class nsIArray;
+
+namespace mozilla {
+namespace a11y {
+
+class TableAccessible;
+class TableCellAccessible;
+
+/**
+ * This class provides an implementation of the nsIAccessibleTableCell
+ * interface's methods.
+ */
+class xpcAccessibleTableCell
+{
+public:
+  xpcAccessibleTableCell(mozilla::a11y::TableCellAccessible* aTableCell) :
+    mTableCell(aTableCell) { }
+
+  nsresult GetTable(nsIAccessibleTable** aTable);
+  nsresult GetColumnIndex(int32_t* aColIdx);
+  nsresult GetRowIndex(int32_t* aRowIdx);
+  nsresult GetColumnExtent(int32_t* aExtent);
+  nsresult GetRowExtent(int32_t* aExtent);
+  nsresult GetColumnHeaderCells(nsIArray** aHeaderCells);
+  nsresult GetRowHeaderCells(nsIArray** aHeaderCells);
+  nsresult IsSelected(bool* aSelected);
+
+protected:
+  mozilla::a11y::TableCellAccessible* mTableCell;
+};
+
+} // namespace a11y
+} // namespace mozilla
+
+#endif // mozilla_a11y_xpcom_xpcAccessibletableCell_h_