Update SVG classes to use OVERRIDE / FINAL when needed

Source/core/svg/SVGCursorElement.h

Index: Source/core/svg/SVGCursorElement.h
diff --git a/Source/core/svg/SVGCursorElement.h b/Source/core/svg/SVGCursorElement.h
index 07fcf3b81209d3f417aa3f978013c7b3d8ac4549..52411d9f6f057bfc4a7c375a452c0436cc4bb3a6 100644
--- a/Source/core/svg/SVGCursorElement.h
+++ b/Source/core/svg/SVGCursorElement.h
@@ -49,11 +49,11 @@ public:
 private:
     explicit SVGCursorElement(Document&);
 
-    virtual bool isValid() const { return SVGTests::isValid(); }
+    virtual bool isValid() const OVERRIDE { return SVGTests::isValid(); }
 
     bool isSupportedAttribute(const QualifiedName&);
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) OVERRIDE;
-    virtual void svgAttributeChanged(const QualifiedName&);
+    virtual void svgAttributeChanged(const QualifiedName&) OVERRIDE;
 
     virtual bool rendererIsNeeded(const RenderStyle&) OVERRIDE { return false; }
 
@@ -64,9 +64,9 @@ private:
     END_DECLARE_ANIMATED_PROPERTIES
 
     // SVGTests
-    virtual void synchronizeRequiredFeatures() { SVGTests::synchronizeRequiredFeatures(this); }
-    virtual void synchronizeRequiredExtensions() { SVGTests::synchronizeRequiredExtensions(this); }
-    virtual void synchronizeSystemLanguage() { SVGTests::synchronizeSystemLanguage(this); }
+    virtual void synchronizeRequiredFeatures() OVERRIDE { SVGTests::synchronizeRequiredFeatures(this); }
+    virtual void synchronizeRequiredExtensions() OVERRIDE { SVGTests::synchronizeRequiredExtensions(this); }
+    virtual void synchronizeSystemLanguage() OVERRIDE { SVGTests::synchronizeSystemLanguage(this); }
 
     HashSet<SVGElement*> m_clients;
 };