Reporing invalid CSS selectors.

Source/core/css/CSSParserValues.h

 /*
  * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2008, 2009, 2010 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,
@@ skipping 52 matching lines @@
         }
     }
 
     void clear()
     {
         m_data.characters8 = 0;
         m_length = 0;
         m_is8Bit = false;
     }
 
+    void trimTrailingWhitespace();
+
     bool is8Bit() const { return m_is8Bit; }
     const LChar* characters8() const { ASSERT(is8Bit()); return m_data.characters8; }
     const UChar* characters16() const { ASSERT(!is8Bit()); return m_data.characters16; }
     template <typename CharacterType>
     const CharacterType* characters() const;
 
     unsigned length() const { return m_length; }
     void setLength(unsigned length) { m_length = length; }
 
     UChar operator[](unsigned i) const
@@ skipping 144 matching lines @@
 };
 
 inline bool CSSParserSelector::hasShadowPseudo() const
 {
     return m_selector->relation() == CSSSelector::ShadowPseudo;
 }
 
 }
 
 #endif