Improve the find word boundary performance

Source/platform/text/TextBoundaries.cpp

 /*
  * Copyright (C) 2006, 2007 Apple Inc.  All rights reserved.
  * Copyright (C) 2009 Dominik Röttsches <dominik.roettsches@access-company.com>
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 81 matching lines @@
 
 void findWordBoundary(const UChar* chars, int len, int position, int* start, int* end)
 {
     TextBreakIterator* it = wordBreakIterator(chars, len);
     *end = it->following(position);
     if (*end < 0)
         *end = it->last();
     *start = it->previous();
 }
 
+int findWordEndBoundary(const UChar* chars, int len, int position)
+{
+    TextBreakIterator* it = wordBreakIterator(chars, len);
+    int end = it->following(position);
+    return end < 0 ? it->last() : end;
+}
 
 } // namespace blink