Update SVG classes to use OVERRIDE / FINAL when needed

Source/core/svg/SVGPathSegCurvetoQuadraticSmoothRel.h

Index: Source/core/svg/SVGPathSegCurvetoQuadraticSmoothRel.h
diff --git a/Source/core/svg/SVGPathSegCurvetoQuadraticSmoothRel.h b/Source/core/svg/SVGPathSegCurvetoQuadraticSmoothRel.h
index 8506e158a116e4dd9158408d4f0d22f687588c79..c011c42c53d054be1bfee601e14535175de96fd4 100644
--- a/Source/core/svg/SVGPathSegCurvetoQuadraticSmoothRel.h
+++ b/Source/core/svg/SVGPathSegCurvetoQuadraticSmoothRel.h
@@ -26,7 +26,7 @@
 
 namespace WebCore {
 
-class SVGPathSegCurvetoQuadraticSmoothRel : public SVGPathSegSingleCoordinate {
+class SVGPathSegCurvetoQuadraticSmoothRel FINAL : public SVGPathSegSingleCoordinate {
 public:
     static PassRefPtr<SVGPathSegCurvetoQuadraticSmoothRel> create(SVGPathElement* element, SVGPathSegRole role, float x, float y)
     {
@@ -40,8 +40,8 @@ private:
         ScriptWrappable::init(this);
     }
 
-    virtual unsigned short pathSegType() const { return PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL; }
-    virtual String pathSegTypeAsLetter() const { return "t"; }
+    virtual unsigned short pathSegType() const OVERRIDE { return PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL; }
+    virtual String pathSegTypeAsLetter() const OVERRIDE { return "t"; }
 };
 
 } // namespace WebCore