diff -r 000000000000 -r 6474c204b198 accessible/src/xpcom/xpcAccessibleTextRange.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/accessible/src/xpcom/xpcAccessibleTextRange.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,72 @@
+/* -*- 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 "xpcAccessibleTextRange.h"
+
+#include "HyperTextAccessible.h"
+#include "TextRange.h"
+
+using namespace mozilla;
+using namespace mozilla::a11y;
+
+// nsISupports and cycle collection
+
+NS_IMPL_CYCLE_COLLECTION(xpcAccessibleTextRange,
+                         mRange.mRoot,
+                         mRange.mStartContainer,
+                         mRange.mEndContainer)
+
+NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(xpcAccessibleTextRange)
+  NS_INTERFACE_MAP_ENTRY(nsIAccessibleTextRange)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIAccessibleTextRange)
+NS_INTERFACE_MAP_END
+
+NS_IMPL_CYCLE_COLLECTING_ADDREF(xpcAccessibleTextRange)
+NS_IMPL_CYCLE_COLLECTING_RELEASE(xpcAccessibleTextRange)
+
+// nsIAccessibleTextRange
+
+NS_IMETHODIMP
+xpcAccessibleTextRange::GetStartContainer(nsIAccessible** aAnchor)
+{
+  NS_ENSURE_ARG_POINTER(aAnchor);
+  NS_IF_ADDREF(*aAnchor = static_cast<nsIAccessible*>(mRange.StartContainer()));
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessibleTextRange::GetStartOffset(int32_t* aOffset)
+{
+  NS_ENSURE_ARG_POINTER(aOffset);
+  *aOffset = mRange.StartOffset();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessibleTextRange::GetEndContainer(nsIAccessible** aAnchor)
+{
+  NS_ENSURE_ARG_POINTER(aAnchor);
+  NS_IF_ADDREF(*aAnchor = static_cast<nsIAccessible*>(mRange.EndContainer()));
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessibleTextRange::GetEndOffset(int32_t* aOffset)
+{
+  NS_ENSURE_ARG_POINTER(aOffset);
+  *aOffset = mRange.EndOffset();
+  return NS_OK;
+}
+
+NS_IMETHODIMP
+xpcAccessibleTextRange::GetText(nsAString& aText)
+{
+  nsAutoString text;
+  mRange.Text(text);
+  aText.Assign(text);
+
+  return NS_OK;
+}