Update CSS classes to use OVERRIDE / FINAL when needed

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 20 matching lines @@
 #define CSSFilterRule_h
 
 #include "core/css/CSSRule.h"
 
 namespace WebCore {
 
 class CSSStyleDeclaration;
 class StyleRuleFilter;
 class StyleRuleCSSStyleDeclaration;
 
-class CSSFilterRule : public CSSRule {
+class CSSFilterRule FINAL : public CSSRule {
 public:
     static PassRefPtr<CSSFilterRule> create(StyleRuleFilter* rule, CSSStyleSheet* sheet) { return adoptRef(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;
 
 private:
     CSSFilterRule(StyleRuleFilter*, CSSStyleSheet* parent);
 
     RefPtr<StyleRuleFilter> m_filterRule;
     mutable RefPtr<StyleRuleCSSStyleDeclaration> m_propertiesCSSOMWrapper;
 };
 
 DEFINE_CSS_RULE_TYPE_CASTS(CSSFilterRule, WEBKIT_FILTER_RULE);
 
 }
 
 
 #endif // CSSFilterRule_h