Make pseudo element update work with LocalStyleChange.

Source/core/rendering/style/RenderStyle.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  *
  * 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
@@ skipping 419 matching lines @@
 
     Order rtlOrdering() const { return static_cast<Order>(inherited_flags.m_rtlOrdering); }
     void setRTLOrdering(Order o) { inherited_flags.m_rtlOrdering = o; }
 
     bool isStyleAvailable() const;
 
     bool hasAnyPublicPseudoStyles() const;
     bool hasPseudoStyle(PseudoId pseudo) const;
     void setHasPseudoStyle(PseudoId pseudo);
     bool hasUniquePseudoStyle() const;
+    bool hasPseudoElementStyle() const;
 
     // attribute getter methods
 
     EDisplay display() const { return static_cast<EDisplay>(noninherited_flags._effectiveDisplay); }
     EDisplay originalDisplay() const { return static_cast<EDisplay>(noninherited_flags._originalDisplay); }
 
     Length left() const { return surround->offset.left(); }
     Length right() const { return surround->offset.right(); }
     Length top() const { return surround->offset.top(); }
     Length bottom() const { return surround->offset.bottom(); }
@@ skipping 1433 matching lines @@
     return (1 << (pseudo - 1)) & noninherited_flags._pseudoBits;
 }
 
 inline void RenderStyle::setHasPseudoStyle(PseudoId pseudo)
 {
     ASSERT(pseudo > NOPSEUDO);
     ASSERT(pseudo < FIRST_INTERNAL_PSEUDOID);
     noninherited_flags._pseudoBits |= 1 << (pseudo - 1);
 }
 
+inline bool RenderStyle::hasPseudoElementStyle() const
+{
+    return noninherited_flags._pseudoBits & PSEUDO_ELEMENT_MASK;
+}
+
 } // namespace WebCore
 
 #endif // RenderStyle_h