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

Source/core/svg/SVGPathSegArcAbs.h

Index: Source/core/svg/SVGPathSegArcAbs.h
diff --git a/Source/core/svg/SVGPathSegArcAbs.h b/Source/core/svg/SVGPathSegArcAbs.h
index f777b9aafd6b7a66dcd15bcf9f155b74f01f0c9d..8248ba33d72ccedc7f0b273e42169a46fd18da42 100644
--- a/Source/core/svg/SVGPathSegArcAbs.h
+++ b/Source/core/svg/SVGPathSegArcAbs.h
@@ -43,8 +43,8 @@ private:
     SVGPathSegArcAbs(SVGPathElement* element, float x, float y, float r1, float r2, float angle, bool largeArcFlag, bool sweepFlag)
         : SVGPathSegArc(element, x, y, r1, r2, angle, largeArcFlag, sweepFlag) { }
 
-    virtual unsigned short pathSegType() const override { return PATHSEG_ARC_ABS; }
-    virtual String pathSegTypeAsLetter() const override { return "A"; }
+    unsigned short pathSegType() const override { return PATHSEG_ARC_ABS; }
+    String pathSegTypeAsLetter() const override { return "A"; }
 };
 
 } // namespace blink