Remove tons of OILPAN.

sky/engine/core/css/CSSRuleList.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2002, 2006, 2012 Apple Computer, Inc.
  *
  * 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 32 matching lines @@
 #if !ENABLE(OILPAN)
     virtual void ref() = 0;
     virtual void deref() = 0;
 #endif
 
     virtual unsigned length() const = 0;
     virtual CSSRule* item(unsigned index) const = 0;
 
     virtual CSSStyleSheet* styleSheet() const = 0;
 
-    virtual void trace(Visitor*) { }
-
 protected:
     CSSRuleList();
 };
 
 class StaticCSSRuleList final : public CSSRuleList {
 public:
     static PassRefPtr<StaticCSSRuleList> create()
     {
         return adoptRef(new StaticCSSRuleList());
     }
 
 #if !ENABLE(OILPAN)
     virtual void ref() override { ++m_refCount; }
     virtual void deref() override;
 #endif
 
     Vector<RefPtr<CSSRule> >& rules() { return m_rules; }
 
     virtual CSSStyleSheet* styleSheet() const override { return 0; }
 
-    virtual void trace(Visitor*) override;
-
 private:
     StaticCSSRuleList();
     virtual ~StaticCSSRuleList();
 
     virtual unsigned length() const override { return m_rules.size(); }
     virtual CSSRule* item(unsigned index) const override { return index < m_rules.size() ? m_rules[index].get() : 0; }
 
     Vector<RefPtr<CSSRule> > m_rules;
 #if !ENABLE(OILPAN)
     unsigned m_refCount;
 #endif
 };
 
 template <class Rule>
 class LiveCSSRuleList final : public CSSRuleList {
 public:
     static PassOwnPtr<LiveCSSRuleList> create(Rule* rule)
     {
         return adoptPtr(new LiveCSSRuleList(rule));
     }
 
 #if !ENABLE(OILPAN)
     virtual void ref() override { m_rule->ref(); }
     virtual void deref() override { m_rule->deref(); }
 #endif
 
-    virtual void trace(Visitor* visitor) override
-    {
-        visitor->trace(m_rule);
-        CSSRuleList::trace(visitor);
-    }
-
 private:
     LiveCSSRuleList(Rule* rule) : m_rule(rule) { }
 
     virtual unsigned length() const override { return m_rule->length(); }
     virtual CSSRule* item(unsigned index) const override { return m_rule->item(index); }
     virtual CSSStyleSheet* styleSheet() const override { return m_rule->parentStyleSheet(); }
 
     RawPtr<Rule> m_rule;
 };
 
 } // namespace blink
 
 #endif // CSSRuleList_h