Remove some dead code from css/ folder

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 59 matching lines @@
         }
     }
 
     void clear()
     {
         m_data.characters8 = 0;
         m_length = 0;
         m_is8Bit = true;
     }
 
-    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 22 matching lines @@
     bool startsWithIgnoringCase(const char* str, size_t strLength) const
     {
         if (length() < strLength)
             return false;
         return is8Bit() ? WTF::equalIgnoringCase(str, characters8(), strLength) : WTF::equalIgnoringCase(str, characters16(), strLength);
     }
 
     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); }
 
-    AtomicString atomicSubstring(unsigned position, unsigned length) const;
-
     bool isFunction() const { return length() > 0 && (*this)[length() - 1] == '('; }
 
     union {
         const LChar* characters8;
         const UChar* characters16;
     } m_data;
     unsigned m_length;
     bool m_is8Bit;
 };
 
@@ skipping 34 matching lines @@
     WTF_MAKE_FAST_ALLOCATED;
 public:
     CSSParserValueList()
         : m_current(0)
     {
     }
     ~CSSParserValueList();
 
     void addValue(const CSSParserValue&);
     void insertValueAt(unsigned, const CSSParserValue&);
-    void deleteValueAt(unsigned);
     void stealValues(CSSParserValueList&);
 
     unsigned size() const { return m_values.size(); }
     unsigned currentIndex() { return m_current; }
     CSSParserValue* current() { return m_current < m_values.size() ? &m_values[m_current] : 0; }
     CSSParserValue* next() { ++m_current; return current(); }
     CSSParserValue* previous()
     {
         if (!m_current)
             return 0;
@@ skipping 92 matching lines @@
 inline void CSSParserValue::setFromValueList(PassOwnPtr<CSSParserValueList> valueList)
 {
     id = CSSValueInvalid;
     this->valueList = valueList.leakPtr();
     unit = ValueList;
 }
 
 }
 
 #endif