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

Source/core/platform/text/TextBreakIterator.h

 /*
  * Copyright (C) 2006 Lars Knoll <lars@trolltech.com>
  * Copyright (C) 2007, 2011, 2012 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 TextBreakIterator_h
 #define TextBreakIterator_h
 
 #include "wtf/text/AtomicString.h"
 #include "wtf/unicode/Unicode.h"
 
 namespace WebCore {
 
-class TextBreakIterator;
+typedef icu::BreakIterator TextBreakIterator;
 
 // Note: The returned iterator is good only until you get another iterator, with the exception of acquireLineBreakIterator.
 
 // This is similar to character break iterator in most cases, but is subject to
 // platform UI conventions. One notable example where this can be different
 // from character break iterator is Thai prepend characters, see bug 24342.
 // Use this for insertion point and selection manipulations.
 TextBreakIterator* cursorMovementIterator(const UChar*, int length);
 
 TextBreakIterator* wordBreakIterator(const String&, int start, int length);
 TextBreakIterator* wordBreakIterator(const UChar*, int length);
 TextBreakIterator* acquireLineBreakIterator(const LChar*, int length, const AtomicString& locale, const UChar* priorContext, unsigned priorContextLength);
 TextBreakIterator* acquireLineBreakIterator(const UChar*, int length, const AtomicString& locale, const UChar* priorContext, unsigned priorContextLength);
 void releaseLineBreakIterator(TextBreakIterator*);
 TextBreakIterator* sentenceBreakIterator(const UChar*, int length);
 
-int textBreakFirst(TextBreakIterator*);
-int textBreakLast(TextBreakIterator*);
-int textBreakNext(TextBreakIterator*);
-int textBreakPrevious(TextBreakIterator*);
-int textBreakCurrent(TextBreakIterator*);
-int textBreakPreceding(TextBreakIterator*, int);
-int textBreakFollowing(TextBreakIterator*, int);
-bool isTextBreak(TextBreakIterator*, int);
 bool isWordTextBreak(TextBreakIterator*);
 
 const int TextBreakDone = -1;
 
 class LazyLineBreakIterator {
 public:
     LazyLineBreakIterator()
         : m_iterator(0)
         , m_cachedPriorContext(0)
         , m_cachedPriorContextLength(0)
@@ skipping 168 matching lines @@
 // of a non-combining character and following combining characters is
 // counted as 1 grapheme cluster.
 unsigned numGraphemeClusters(const String&);
 // Returns the number of characters which will be less than or equal to
 // the specified grapheme cluster length.
 unsigned numCharactersInGraphemeClusters(const String&, unsigned);
 
 }
 
 #endif