TextBreakIterator should use the C++ icu API instead of the C one

Source/wtf/unicode/icu/UnicodeIcu.h

 /*
  *  Copyright (C) 2006 George Staikos <staikos@kde.org>
  *  Copyright (C) 2006 Alexey Proskuryakov <ap@nypop.com>
  *  Copyright (C) 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Library General Public
  *  License as published by the Free Software Foundation; either
  *  version 2 of the License, or (at your option) any later version.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  *  Library General Public License for more details.
  *
  *  You should have received a copy of the GNU Library General Public License
  *  along with this library; see the file COPYING.LIB.  If not, write to
  *  the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  *  Boston, MA 02110-1301, USA.
  *
  */
 
 #ifndef WTF_UNICODE_ICU_H
 #define WTF_UNICODE_ICU_H
 
+#include <unicode/brkiter.h>
+#include <unicode/rbbi.h>
 #include <unicode/uchar.h>
 #include <unicode/uscript.h>
 #include <unicode/ustring.h>
 #include <unicode/utf16.h>
 
 namespace WTF {
 
 namespace Unicode {
 
 enum Direction {
@@ skipping 187 matching lines @@
 inline int umemcasecmp(const UChar* a, const UChar* b, int len)
 {
     return u_memcasecmp(a, b, len, U_FOLD_CASE_DEFAULT);
 }
 
 } // namespace Unicode
 
 } // namespace WTF
 
 #endif // WTF_UNICODE_ICU_H