diff -r 000000000000 -r 6474c204b198 accessible/src/xpcom/xpcAccessibleTableCell.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/accessible/src/xpcom/xpcAccessibleTableCell.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,158 @@
+/* -*- 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 "xpcAccessibleTableCell.h"
+
+#include "Accessible.h"
+#include "TableAccessible.h"
+#include "TableCellAccessible.h"
+
+#include "nsIAccessibleTable.h"
+
+#include "nsComponentManagerUtils.h"
+#include "nsIMutableArray.h"
+
+using namespace mozilla;
+using namespace mozilla::a11y;
+
+nsresult
+xpcAccessibleTableCell::GetTable(nsIAccessibleTable** aTable)
+{
+  NS_ENSURE_ARG_POINTER(aTable);
+  *aTable = nullptr;
+
+  if (!mTableCell)
+    return NS_ERROR_FAILURE;
+
+  TableAccessible* table = mTableCell->Table();
+  if (!table)
+    return NS_ERROR_FAILURE;
+
+  nsCOMPtr<nsIAccessibleTable> xpcTable =
+    do_QueryInterface(static_cast<nsIAccessible*>(table->AsAccessible()));
+  xpcTable.forget(aTable);
+
+  return NS_OK;
+}
+
+nsresult
+xpcAccessibleTableCell::GetColumnIndex(int32_t* aColIdx)
+{
+  NS_ENSURE_ARG_POINTER(aColIdx);
+  *aColIdx = -1;
+
+  if (!mTableCell)
+    return NS_ERROR_FAILURE;
+
+  *aColIdx = mTableCell->ColIdx();
+  return NS_OK;
+}
+
+nsresult
+xpcAccessibleTableCell::GetRowIndex(int32_t* aRowIdx)
+{
+  NS_ENSURE_ARG_POINTER(aRowIdx);
+  *aRowIdx = -1;
+
+  if (!mTableCell)
+    return NS_ERROR_FAILURE;
+
+  *aRowIdx = mTableCell->RowIdx();
+
+  return NS_OK;
+}
+
+nsresult
+xpcAccessibleTableCell::GetColumnExtent(int32_t* aExtent)
+{
+  NS_ENSURE_ARG_POINTER(aExtent);
+  *aExtent = -1;
+
+  if (!mTableCell)
+    return NS_ERROR_FAILURE;
+
+  *aExtent = mTableCell->ColExtent();
+
+  return NS_OK;
+}
+
+nsresult
+xpcAccessibleTableCell::GetRowExtent(int32_t* aExtent)
+{
+  NS_ENSURE_ARG_POINTER(aExtent);
+  *aExtent = -1;
+
+  if (!mTableCell)
+    return NS_ERROR_FAILURE;
+
+  *aExtent = mTableCell->RowExtent();
+
+  return NS_OK;
+}
+
+nsresult
+xpcAccessibleTableCell::GetColumnHeaderCells(nsIArray** aHeaderCells)
+{
+  NS_ENSURE_ARG_POINTER(aHeaderCells);
+  *aHeaderCells = nullptr;
+
+  if (!mTableCell)
+    return NS_ERROR_FAILURE;
+
+  nsAutoTArray<Accessible*, 10> headerCells;
+  mTableCell->ColHeaderCells(&headerCells);
+
+  nsCOMPtr<nsIMutableArray> cells = do_CreateInstance(NS_ARRAY_CONTRACTID);
+  NS_ENSURE_TRUE(cells, NS_ERROR_FAILURE);
+
+  for (uint32_t idx = 0; idx < headerCells.Length(); idx++) {
+    cells->
+      AppendElement(static_cast<nsIAccessible*>(headerCells.ElementAt(idx)),
+                    false);
+  }
+
+  NS_ADDREF(*aHeaderCells = cells);
+  return NS_OK;
+}
+
+nsresult
+xpcAccessibleTableCell::GetRowHeaderCells(nsIArray** aHeaderCells)
+{
+  NS_ENSURE_ARG_POINTER(aHeaderCells);
+  *aHeaderCells = nullptr;
+
+  if (!mTableCell)
+    return NS_ERROR_FAILURE;
+
+  nsAutoTArray<Accessible*, 10> headerCells;
+  mTableCell->RowHeaderCells(&headerCells);
+
+  nsCOMPtr<nsIMutableArray> cells = do_CreateInstance(NS_ARRAY_CONTRACTID);
+  NS_ENSURE_TRUE(cells, NS_ERROR_FAILURE);
+
+  for (uint32_t idx = 0; idx < headerCells.Length(); idx++) {
+    cells->
+      AppendElement(static_cast<nsIAccessible*>(headerCells.ElementAt(idx)),
+                    false);
+  }
+
+  NS_ADDREF(*aHeaderCells = cells);
+  return NS_OK;
+}
+
+nsresult
+xpcAccessibleTableCell::IsSelected(bool* aSelected)
+{
+  NS_ENSURE_ARG_POINTER(aSelected);
+  *aSelected = false;
+
+  if (!mTableCell)
+    return NS_ERROR_FAILURE;
+
+  *aSelected = mTableCell->Selected();
+
+  return NS_OK;
+}