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

Source/core/svg/SVGClipPathElement.h

Index: Source/core/svg/SVGClipPathElement.h
diff --git a/Source/core/svg/SVGClipPathElement.h b/Source/core/svg/SVGClipPathElement.h
index 9bca7151d47775666720f12404d3f34e84cfcc3e..6354eb6a92078d758e22afc3fa4ca8545f7c36da 100644
--- a/Source/core/svg/SVGClipPathElement.h
+++ b/Source/core/svg/SVGClipPathElement.h
@@ -38,19 +38,19 @@ public:
     DECLARE_NODE_FACTORY(SVGClipPathElement);
     SVGAnimatedEnumeration<SVGUnitTypes::SVGUnitType>* clipPathUnits() { return m_clipPathUnits.get(); }
 
-    virtual bool supportsFocus() const override { return false; }
+    bool supportsFocus() const override { return false; }
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     explicit SVGClipPathElement(Document&);
 
-    virtual bool needsPendingResourceHandling() const override { return false; }
+    bool needsPendingResourceHandling() const override { return false; }
 
-    virtual void svgAttributeChanged(const QualifiedName&) override;
-    virtual void childrenChanged(const ChildrenChange&) override;
+    void svgAttributeChanged(const QualifiedName&) override;
+    void childrenChanged(const ChildrenChange&) override;
 
-    virtual LayoutObject* createLayoutObject(const ComputedStyle&) override;
+    LayoutObject* createLayoutObject(const ComputedStyle&) override;
 
     RefPtrWillBeMember<SVGAnimatedEnumeration<SVGUnitTypes::SVGUnitType>> m_clipPathUnits;
 };