diff -r 000000000000 -r 6474c204b198 intl/lwbrk/src/nsComplexBreaker.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/intl/lwbrk/src/nsComplexBreaker.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,19 @@
+/* -*- 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/. */
+#ifndef nsComplexBreaker_h__
+#define nsComplexBreaker_h__
+
+#include "nsString.h"
+
+/**
+ * Find line break opportunities in aText[] of aLength characters,
+ * filling boolean values indicating line break opportunities for
+ * corresponding charactersin aBreakBefore[] on return.
+ */
+void
+NS_GetComplexLineBreaks(const char16_t* aText, uint32_t aLength,
+                        uint8_t* aBreakBefore);
+
+#endif  /* nsComplexBreaker_h__ */