Remove some unused includes from core/css and core/dom

Source/core/css/CSSParserValues.cpp

 /*
  * Copyright (C) 2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2008 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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 #include "core/css/CSSParserValues.h"
 
 #include "core/css/CSSFunctionValue.h"
 #include "core/css/CSSPrimitiveValue.h"
 #include "core/css/CSSSelector.h"
 #include "core/css/CSSSelectorList.h"
-#include "core/css/CSSVariableValue.h"
 
 namespace WebCore {
 
 using namespace WTF;
 
 CSSParserValueList::~CSSParserValueList()
 {
     size_t numValues = m_values.size();
     for (size_t i = 0; i < numValues; i++) {
         if (m_values[i].unit == CSSParserValue::Function)
@@ skipping 188 matching lines @@
     CSSParserSelector* selector = const_cast<CSSParserSelector*>(this);
     do {
         if (selector->isDistributedPseudoElement())
             return selector;
     } while ((selector = selector->tagHistory()));
     return 0;
 }
 
 }