Implement unicode bidi P2 and P3 rules in BidiResolver

Source/core/rendering/InlineIterator.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2006, 2007, 2008, 2009, 2010 Apple Inc. All right reserved.
  * Copyright (C) 2010 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 60 matching lines @@
     }
 
     RenderObject* object() const { return m_obj; }
     unsigned offset() const { return m_pos; }
     RenderObject* root() const { return m_root; }
 
     void fastIncrementInTextNode();
     void increment(InlineBidiResolver* = 0, IncrementRule = FastIncrementInTextNode);
     bool atEnd() const;
 
-    inline bool atTextParagraphSeparator()
+    inline bool atTextParagraphSeparator() const
     {
         return m_obj && m_obj->preservesNewline() && m_obj->isText() && toRenderText(m_obj)->textLength()
             && !toRenderText(m_obj)->isWordBreak() && toRenderText(m_obj)->characterAt(m_pos) == '\n';
     }
 
-    inline bool atParagraphSeparator()
+    inline bool atParagraphSeparator() const
     {
         return (m_obj && m_obj->isBR()) || atTextParagraphSeparator();
     }
 
     UChar characterAt(unsigned) const;
     UChar current() const;
     UChar previousInSameNode() const;
     ALWAYS_INLINE WTF::Unicode::Direction direction() const;
 
 private:
@@ skipping 464 matching lines @@
         m_sor = m_eor;
     }
 
     m_direction = WTF::Unicode::OtherNeutral;
     m_status.eor = WTF::Unicode::OtherNeutral;
 }
 
 }
 
 #endif // InlineIterator_h