Replace FINAL and OVERRIDE with their C++11 counterparts in Source/core/[css|rendering|clipboard]

Source/core/css/CSSMediaRule.h

Index: Source/core/css/CSSMediaRule.h
diff --git a/Source/core/css/CSSMediaRule.h b/Source/core/css/CSSMediaRule.h
index fd49fee172e6db8b64c3e035b2b80465bbe01717..adb7329c2691fb990d87c4b5de7f0286d8301741 100644
--- a/Source/core/css/CSSMediaRule.h
+++ b/Source/core/css/CSSMediaRule.h
@@ -30,7 +30,7 @@ namespace blink {
 
 class StyleRuleMedia;
 
-class CSSMediaRule FINAL : public CSSGroupingRule {
+class CSSMediaRule final : public CSSGroupingRule {
 public:
     static PassRefPtrWillBeRawPtr<CSSMediaRule> create(StyleRuleMedia* rule, CSSStyleSheet* sheet)
     {
@@ -39,13 +39,13 @@ public:
 
     virtual ~CSSMediaRule();
 
-    virtual CSSRule::Type type() const OVERRIDE { return MEDIA_RULE; }
-    virtual void reattach(StyleRuleBase*) OVERRIDE;
-    virtual String cssText() const OVERRIDE;
+    virtual CSSRule::Type type() const override { return MEDIA_RULE; }
+    virtual void reattach(StyleRuleBase*) override;
+    virtual String cssText() const override;
 
     MediaList* media() const;
 
-    virtual void trace(Visitor*) OVERRIDE;
+    virtual void trace(Visitor*) override;
 
 private:
     CSSMediaRule(StyleRuleMedia*, CSSStyleSheet*);