Clean up virtual functions in css/

Source/core/css/CSSFilterRule.h

 /*
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above
  *    copyright notice, this list of conditions and the following
  *    disclaimer.
@@ skipping 31 matching lines @@
 class CSSFilterRule final : public CSSRule {
     DEFINE_WRAPPERTYPEINFO();
 public:
     static PassRefPtrWillBeRawPtr<CSSFilterRule> create(StyleRuleFilter* rule, CSSStyleSheet* sheet)
     {
         return adoptRefWillBeNoop(new CSSFilterRule(rule, sheet));
     }
 
     virtual ~CSSFilterRule();
 
-    virtual CSSRule::Type type() const override { return WEBKIT_FILTER_RULE; }
     virtual String cssText() const override;
     virtual void reattach(StyleRuleBase*) override;
 
     CSSStyleDeclaration* style() const;
 
     virtual void trace(Visitor*) override;
 
 private:
     CSSFilterRule(StyleRuleFilter*, CSSStyleSheet* parent);
 
+    virtual CSSRule::Type type() const override { return WEBKIT_FILTER_RULE; }
+
     RefPtrWillBeMember<StyleRuleFilter> m_filterRule;
     mutable RefPtrWillBeMember<StyleRuleCSSStyleDeclaration> m_propertiesCSSOMWrapper;
 };
 
 DEFINE_CSS_RULE_TYPE_CASTS(CSSFilterRule, WEBKIT_FILTER_RULE);
 
 }
 
 
 #endif // CSSFilterRule_h