Fix virtual/override/final usage in Source/core/{animation,css,style}/.

Source/core/animation/CSSValueInterpolationType.h

Index: Source/core/animation/CSSValueInterpolationType.h
diff --git a/Source/core/animation/CSSValueInterpolationType.h b/Source/core/animation/CSSValueInterpolationType.h
index 77e6edf1a7775d6a81a662c784065b3de15c4d3e..568fee7e7a991f7004e7cf2843dbb97e988f5d80 100644
--- a/Source/core/animation/CSSValueInterpolationType.h
+++ b/Source/core/animation/CSSValueInterpolationType.h
@@ -17,13 +17,13 @@ public:
         : InterpolationType(property)
     { }
 
-    virtual PassOwnPtrWillBeRawPtr<InterpolationValue> maybeConvertSingle(const CSSPropertySpecificKeyframe&, const StyleResolverState*, ConversionCheckers&) const override final;
-    virtual void apply(const InterpolableValue&, const NonInterpolableValue*, StyleResolverState&) const override final;
+    PassOwnPtrWillBeRawPtr<InterpolationValue> maybeConvertSingle(const CSSPropertySpecificKeyframe&, const StyleResolverState*, ConversionCheckers&) const final;
+    void apply(const InterpolableValue&, const NonInterpolableValue*, StyleResolverState&) const final;
 };
 
 class DefaultNonInterpolableValue : public NonInterpolableValue {
 public:
-    virtual ~DefaultNonInterpolableValue() { }
+    ~DefaultNonInterpolableValue() override { }
     static PassRefPtrWillBeRawPtr<DefaultNonInterpolableValue> create(PassRefPtrWillBeRawPtr<CSSValue> cssValue)
     {
         return adoptRefWillBeNoop(new DefaultNonInterpolableValue(cssValue));