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

Source/platform/text/TextBreakIterator.h

Index: Source/platform/text/TextBreakIterator.h
diff --git a/Source/platform/text/TextBreakIterator.h b/Source/platform/text/TextBreakIterator.h
index f0c952840a9a64520bcfcc5bc20ff6d71652fffa..b8144c4e215d8d676da033683d83a68ac6215567 100644
--- a/Source/platform/text/TextBreakIterator.h
+++ b/Source/platform/text/TextBreakIterator.h
@@ -28,7 +28,7 @@
 
 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.
 
@@ -45,14 +45,6 @@ PLATFORM_EXPORT TextBreakIterator* acquireLineBreakIterator(const UChar*, int le
 PLATFORM_EXPORT void releaseLineBreakIterator(TextBreakIterator*);
 PLATFORM_EXPORT TextBreakIterator* sentenceBreakIterator(const UChar*, int length);
 
-PLATFORM_EXPORT int textBreakFirst(TextBreakIterator*);
-PLATFORM_EXPORT int textBreakLast(TextBreakIterator*);
-PLATFORM_EXPORT int textBreakNext(TextBreakIterator*);
-PLATFORM_EXPORT int textBreakPrevious(TextBreakIterator*);
-PLATFORM_EXPORT int textBreakCurrent(TextBreakIterator*);
-PLATFORM_EXPORT int textBreakPreceding(TextBreakIterator*, int);
-PLATFORM_EXPORT int textBreakFollowing(TextBreakIterator*, int);
-PLATFORM_EXPORT bool isTextBreak(TextBreakIterator*, int);
 PLATFORM_EXPORT bool isWordTextBreak(TextBreakIterator*);
 
 const int TextBreakDone = -1;