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

Source/core/svg/SVGPathSegLinetoHorizontalAbs.h

Index: Source/core/svg/SVGPathSegLinetoHorizontalAbs.h
diff --git a/Source/core/svg/SVGPathSegLinetoHorizontalAbs.h b/Source/core/svg/SVGPathSegLinetoHorizontalAbs.h
index bb4ea9f9687cbd2ef4520224ceb41425ae1fb57b..19e086fef13022a745fb30d490c64e4df68addf7 100644
--- a/Source/core/svg/SVGPathSegLinetoHorizontalAbs.h
+++ b/Source/core/svg/SVGPathSegLinetoHorizontalAbs.h
@@ -43,8 +43,8 @@ private:
     SVGPathSegLinetoHorizontalAbs(SVGPathElement* element, float x)
         : SVGPathSegLinetoHorizontal(element, x) { }
 
-    virtual unsigned short pathSegType() const override { return PATHSEG_LINETO_HORIZONTAL_ABS; }
-    virtual String pathSegTypeAsLetter() const override { return "H"; }
+    unsigned short pathSegType() const override { return PATHSEG_LINETO_HORIZONTAL_ABS; }
+    String pathSegTypeAsLetter() const override { return "H"; }

[yosin_UTC9, 2015/07/08 05:01:33]

FYI: It seems |pathSegTypeAsLetter()| is used only in V8 bindiing as

v8SetReturnValueString(info, impl->pathSegTypeAsLetter(), info.GetIsolate());

We may not need to construct |String| object.

 };
 
 } // namespace blink