diff -r 000000000000 -r 6474c204b198 intl/lwbrk/src/nsJISx4051LineBreaker.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/intl/lwbrk/src/nsJISx4051LineBreaker.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,35 @@
+/* -*- 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 nsJISx4051LineBreaker_h__
+#define nsJISx4051LineBreaker_h__
+
+
+#include "nsILineBreaker.h"
+
+class nsJISx4051LineBreaker : public nsILineBreaker
+{
+  NS_DECL_ISUPPORTS
+
+public:
+  nsJISx4051LineBreaker();
+  virtual ~nsJISx4051LineBreaker();
+
+  int32_t Next( const char16_t* aText, uint32_t aLen, uint32_t aPos);
+
+  int32_t Prev( const char16_t* aText, uint32_t aLen, uint32_t aPos);
+
+  virtual void GetJISx4051Breaks(const char16_t* aText, uint32_t aLength,
+                                 uint8_t aBreakMode,
+                                 uint8_t* aBreakBefore);
+  virtual void GetJISx4051Breaks(const uint8_t* aText, uint32_t aLength,
+                                 uint8_t aBreakMode,
+                                 uint8_t* aBreakBefore);
+
+private:
+  int32_t WordMove(const char16_t* aText, uint32_t aLen, uint32_t aPos,
+                   int8_t aDirection);
+};
+
+#endif  /* nsJISx4051LineBreaker_h__ */