Do not zero-initialize RawPtr.

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,
@@ skipping 66 matching lines @@
 
 void CSSParserValueList::stealValues(CSSParserValueList& valueList)
 {
     for (unsigned int i = 0; i < valueList.size(); ++i)
         m_values.append(*(valueList.valueAt(i)));
     valueList.clear();
 }
 
 PassRefPtrWillBeRawPtr<CSSValue> CSSParserValue::createCSSValue()
 {
-    RefPtrWillBeRawPtr<CSSValue> parsedValue;
     if (id)
         return CSSPrimitiveValue::createIdentifier(id);
 
     if (unit == CSSParserValue::Operator) {
         RefPtrWillBeRawPtr<CSSPrimitiveValue> primitiveValue = CSSPrimitiveValue::createParserOperator(iValue);
         primitiveValue->setPrimitiveType(CSSPrimitiveValue::CSS_PARSER_OPERATOR);
         return primitiveValue;
     }
     if (unit == CSSParserValue::Function) {
         return CSSFunctionValue::create(function);
@@ skipping 164 matching lines @@
 {
     CSSParserSelector* selector = const_cast<CSSParserSelector*>(this);
     do {
         if (selector->pseudoType() == CSSSelector::PseudoHost || selector->pseudoType() == CSSSelector::PseudoAncestor)
             return true;
     } while ((selector = selector->tagHistory()));
     return false;
 }
 
 } // namespace WebCore