Update SVG classes to use OVERRIDE / FINAL when needed

Source/core/svg/SVGPathSegLinetoHorizontalRel.h

Index: Source/core/svg/SVGPathSegLinetoHorizontalRel.h
diff --git a/Source/core/svg/SVGPathSegLinetoHorizontalRel.h b/Source/core/svg/SVGPathSegLinetoHorizontalRel.h
index 974c41ce3c8fb451df60848c6a751a562c54f0c7..5c172a42896993c2589a67794caa11684b01f01b 100644
--- a/Source/core/svg/SVGPathSegLinetoHorizontalRel.h
+++ b/Source/core/svg/SVGPathSegLinetoHorizontalRel.h
@@ -26,7 +26,7 @@
 
 namespace WebCore {
 
-class SVGPathSegLinetoHorizontalRel : public SVGPathSegLinetoHorizontal {
+class SVGPathSegLinetoHorizontalRel FINAL : public SVGPathSegLinetoHorizontal {
 public:
     static PassRefPtr<SVGPathSegLinetoHorizontalRel> create(SVGPathElement* element, SVGPathSegRole role, float x)
     {
@@ -40,8 +40,8 @@ private:
         ScriptWrappable::init(this);
     }
 
-    virtual unsigned short pathSegType() const { return PATHSEG_LINETO_HORIZONTAL_REL; }
-    virtual String pathSegTypeAsLetter() const { return "h"; }
+    virtual unsigned short pathSegType() const OVERRIDE { return PATHSEG_LINETO_HORIZONTAL_REL; }
+    virtual String pathSegTypeAsLetter() const OVERRIDE { return "h"; }
 };
 
 } // namespace WebCore