Implement unicode bidi P2 and P3 rules in BidiResolver

Source/wtf/text/StringImpl.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google 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.
  *
@@ skipping 391 matching lines @@
     bool endsWith(const char (&prefix)[matchLength], bool caseSensitive = true) const { return endsWith(prefix, matchLength - 1, caseSensitive); }
 
     PassRefPtr<StringImpl> replace(UChar, UChar);
     PassRefPtr<StringImpl> replace(UChar, StringImpl*);
     ALWAYS_INLINE PassRefPtr<StringImpl> replace(UChar pattern, const char* replacement, unsigned replacementLength) { return replace(pattern, reinterpret_cast<const LChar*>(replacement), replacementLength); }
     PassRefPtr<StringImpl> replace(UChar, const LChar*, unsigned replacementLength);
     PassRefPtr<StringImpl> replace(UChar, const UChar*, unsigned replacementLength);
     PassRefPtr<StringImpl> replace(StringImpl*, StringImpl*);
     PassRefPtr<StringImpl> replace(unsigned index, unsigned len, StringImpl*);
 
-    WTF::Unicode::Direction defaultWritingDirection(bool* hasStrongDirectionality = 0);
-
 #if USE(CF)
     RetainPtr<CFStringRef> createCFString();
 #endif
 #ifdef __OBJC__
     operator NSString*();
 #endif
 
 #ifdef STRING_STATS
     ALWAYS_INLINE static StringStats& stringStats() { return m_stringStats; }
 #endif
@@ skipping 314 matching lines @@
 }
 
 using WTF::StringImpl;
 using WTF::equal;
 using WTF::equalNonNull;
 using WTF::TextCaseSensitivity;
 using WTF::TextCaseSensitive;
 using WTF::TextCaseInsensitive;
 
 #endif