Pass around CSSSelector by reference instead of pointer

Source/core/css/CSSStyleRule.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2002, 2005, 2006, 2008, 2012 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.
  *
@@ skipping 49 matching lines @@
 {
     if (!m_propertiesCSSOMWrapper) {
         m_propertiesCSSOMWrapper = StyleRuleCSSStyleDeclaration::create(m_styleRule->mutableProperties(), const_cast<CSSStyleRule*>(this));
     }
     return m_propertiesCSSOMWrapper.get();
 }
 
 String CSSStyleRule::generateSelectorText() const
 {
     StringBuilder builder;
-    for (const CSSSelector* selector = m_styleRule->selectorList().first(); selector; selector = CSSSelectorList::next(selector)) {
+    for (const CSSSelector* selector = m_styleRule->selectorList().first(); selector; selector = CSSSelectorList::next(*selector)) {
         if (selector != m_styleRule->selectorList().first())
             builder.append(", ");
         builder.append(selector->selectorText());
     }
     return builder.toString();
 }
 
 String CSSStyleRule::selectorText() const
 {
     if (hasCachedSelectorText()) {
@@ skipping 41 matching lines @@
 
 void CSSStyleRule::reattach(StyleRuleBase* rule)
 {
     ASSERT(rule);
     m_styleRule = toStyleRule(rule);
     if (m_propertiesCSSOMWrapper)
         m_propertiesCSSOMWrapper->reattach(m_styleRule->mutableProperties());
 }
 
 } // namespace WebCore