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

Source/core/svg/SVGInteger.h

Index: Source/core/svg/SVGInteger.h
diff --git a/Source/core/svg/SVGInteger.h b/Source/core/svg/SVGInteger.h
index 69db4a88ffcb8a331c8dfcbfcdf0fcab5cac33d3..cc0141be05b275d4178eef84ac54972c92c7bf90 100644
--- a/Source/core/svg/SVGInteger.h
+++ b/Source/core/svg/SVGInteger.h
@@ -52,12 +52,12 @@ public:
     int value() const { return m_value; }
     void setValue(int value) { m_value = value; }
 
-    virtual String valueAsString() const override;
+    String valueAsString() const override;
     virtual void setValueAsString(const String&, ExceptionState&);
 
-    virtual void add(PassRefPtrWillBeRawPtr<SVGPropertyBase>, SVGElement*) override;
-    virtual void calculateAnimatedValue(SVGAnimationElement*, float percentage, unsigned repeatCount, PassRefPtrWillBeRawPtr<SVGPropertyBase> from, PassRefPtrWillBeRawPtr<SVGPropertyBase> to, PassRefPtrWillBeRawPtr<SVGPropertyBase> toAtEndOfDurationValue, SVGElement* contextElement) override;
-    virtual float calculateDistance(PassRefPtrWillBeRawPtr<SVGPropertyBase> to, SVGElement* contextElement) override;
+    void add(PassRefPtrWillBeRawPtr<SVGPropertyBase>, SVGElement*) override;
+    void calculateAnimatedValue(SVGAnimationElement*, float percentage, unsigned repeatCount, PassRefPtrWillBeRawPtr<SVGPropertyBase> from, PassRefPtrWillBeRawPtr<SVGPropertyBase> to, PassRefPtrWillBeRawPtr<SVGPropertyBase> toAtEndOfDurationValue, SVGElement* contextElement) override;
+    float calculateDistance(PassRefPtrWillBeRawPtr<SVGPropertyBase> to, SVGElement* contextElement) override;
 
     static AnimatedPropertyType classType() { return AnimatedInteger; }