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

Source/core/animation/DeferredLegacyStyleInterpolation.h

Index: Source/core/animation/DeferredLegacyStyleInterpolation.h
diff --git a/Source/core/animation/DeferredLegacyStyleInterpolation.h b/Source/core/animation/DeferredLegacyStyleInterpolation.h
index 993d03761436ef8d23142898a16b5b7fa546f27f..1c624ae790c3ea39081d456841d07f35c22de0ad 100644
--- a/Source/core/animation/DeferredLegacyStyleInterpolation.h
+++ b/Source/core/animation/DeferredLegacyStyleInterpolation.h
@@ -26,7 +26,7 @@ public:
         return adoptRefWillBeNoop(new DeferredLegacyStyleInterpolation(start, end, id));
     }
 
-    virtual void apply(StyleResolverState&) const override;
+    void apply(StyleResolverState&) const override;
 
     DECLARE_VIRTUAL_TRACE();
 
@@ -40,7 +40,7 @@ public:
 
     void underlyingStyleChanged() { m_outdated = true; }
 
-    virtual bool isDeferredLegacyStyleInterpolation() const override final { return true; }
+    bool isDeferredLegacyStyleInterpolation() const final { return true; }
 
 private:
     DeferredLegacyStyleInterpolation(PassRefPtrWillBeRawPtr<CSSValue> start, PassRefPtrWillBeRawPtr<CSSValue> end, CSSPropertyID id)