Fix virtual/override/final usage in Source/core/svg/.

Source/core/svg/SVGNumberList.h

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 30 matching lines @@
 
 class SVGNumberList final : public SVGListPropertyHelper<SVGNumberList, SVGNumber> {
 public:
     typedef SVGNumberListTearOff TearOffType;
 
     static PassRefPtrWillBeRawPtr<SVGNumberList> create()
     {
         return adoptRefWillBeNoop(new SVGNumberList());
     }
 
-    virtual ~SVGNumberList();
+    ~SVGNumberList() override;
 
     void setValueAsString(const String&, ExceptionState&);
 
     // SVGPropertyBase:
-    virtual String valueAsString() const override;
+    String valueAsString() const override;
 
-    virtual void add(PassRefPtrWillBeRawPtr<SVGPropertyBase>, SVGElement*) override;
-    virtual void calculateAnimatedValue(SVGAnimationElement*, float percentage, unsigned repeatCount, PassRefPtrWillBeRawPtr<SVGPropertyBase> fromValue, PassRefPtrWillBeRawPtr<SVGPropertyBase> toValue, PassRefPtrWillBeRawPtr<SVGPropertyBase> toAtEndOfDurationValue, SVGElement*) override;
-    virtual float calculateDistance(PassRefPtrWillBeRawPtr<SVGPropertyBase> to, SVGElement*) override;
+    void add(PassRefPtrWillBeRawPtr<SVGPropertyBase>, SVGElement*) override;
+    void calculateAnimatedValue(SVGAnimationElement*, float percentage, unsigned repeatCount, PassRefPtrWillBeRawPtr<SVGPropertyBase> fromValue, PassRefPtrWillBeRawPtr<SVGPropertyBase> toValue, PassRefPtrWillBeRawPtr<SVGPropertyBase> toAtEndOfDurationValue, SVGElement*) override;
+    float calculateDistance(PassRefPtrWillBeRawPtr<SVGPropertyBase> to, SVGElement*) override;
 
     static AnimatedPropertyType classType() { return AnimatedNumberList; }
 
     Vector<float> toFloatVector() const;
 
 private:
     SVGNumberList();
 
     template <typename CharType>
     bool parse(const CharType*& ptr, const CharType* end);
 };
 
 } // namespace blink
 
 #endif // SVGNumberList_h