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

Source/core/svg/SVGPathSegCurvetoQuadraticAbs.h

Index: Source/core/svg/SVGPathSegCurvetoQuadraticAbs.h
diff --git a/Source/core/svg/SVGPathSegCurvetoQuadraticAbs.h b/Source/core/svg/SVGPathSegCurvetoQuadraticAbs.h
index 545b0beb4c2995df353fd6e968173b323c723b1b..19e78b332ff44705d5fdb672c10adc9e4d77bc12 100644
--- a/Source/core/svg/SVGPathSegCurvetoQuadraticAbs.h
+++ b/Source/core/svg/SVGPathSegCurvetoQuadraticAbs.h
@@ -43,8 +43,8 @@ private:
     SVGPathSegCurvetoQuadraticAbs(SVGPathElement* element, float x, float y, float x1, float y1)
         : SVGPathSegCurvetoQuadratic(element, x, y, x1, y1) { }
 
-    virtual unsigned short pathSegType() const override { return PATHSEG_CURVETO_QUADRATIC_ABS; }
-    virtual String pathSegTypeAsLetter() const override { return "Q"; }
+    unsigned short pathSegType() const override { return PATHSEG_CURVETO_QUADRATIC_ABS; }
+    String pathSegTypeAsLetter() const override { return "Q"; }
 };
 
 } // namespace blink