Shrinking CSSParserToken for lower CSS parsing memory usage.

Source/core/css/parser/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 30 matching lines @@
         m_is8Bit = true;
     }
 
     void init(const UChar* characters, unsigned length)
     {
         m_data.characters16 = characters;
         m_length = length;
         m_is8Bit = false;
     }
 
+    void initRaw(const void* charactersRaw, unsigned length, bool is8Bit)
+    {
+        m_data.charactersRaw = charactersRaw;
+        m_length = length;
+        m_is8Bit = is8Bit;
+    }
+
     void init(const String& string)
     {
         m_length = string.length();
         if (string.isNull()) {
             m_data.characters8 = 0;
             m_is8Bit = true;
             return;
         }
         if (string.is8Bit()) {
             m_data.characters8 = const_cast<LChar*>(string.characters8());
@@ skipping 26 matching lines @@
         ASSERT(strlen(str) >= length());
         return str[length()] == '\0';
     }
 
     operator String() const { return is8Bit() ? String(m_data.characters8, m_length) : StringImpl::create8BitIfPossible(m_data.characters16, m_length); }
     operator AtomicString() const { return is8Bit() ? AtomicString(m_data.characters8, m_length) : AtomicString(m_data.characters16, m_length); }
 
     union {
         const LChar* characters8;
         const UChar* characters16;
+        const void* charactersRaw;
     } m_data;
     unsigned m_length;
     bool m_is8Bit;
 };
 
 struct CSSParserFunction;
 class CSSParserValueList;
 
 struct CSSParserValue {
     CSSValueID id;
@@ skipping 159 matching lines @@
 {
     id = CSSValueInvalid;
     this->valueList = valueList.leakPtr();
     unit = ValueList;
     isInt = false;
 }
 
 }
 
 #endif