[svg2] Make 'cx', 'cy' and 'r' presentation attributes

Source/core/svg/SVGCircleElement.h

Index: Source/core/svg/SVGCircleElement.h
diff --git a/Source/core/svg/SVGCircleElement.h b/Source/core/svg/SVGCircleElement.h
index 6a8d10c0e670c7c9a7d81f65a418c18b98bf5707..a6c76c1ff6f7093493fadb791ecc00b9fbbbee73 100644
--- a/Source/core/svg/SVGCircleElement.h
+++ b/Source/core/svg/SVGCircleElement.h
@@ -47,6 +47,10 @@ private:
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) override;
     virtual void svgAttributeChanged(const QualifiedName&) override;
 
+    virtual bool isPresentationAttribute(const QualifiedName&) const override;
+    virtual bool isPresentationAttributeWithSVGDOM(const QualifiedName&) const override;
+    virtual void collectStyleForPresentationAttribute(const QualifiedName&, const AtomicString&, MutableStylePropertySet*) override;
+
     virtual bool selfHasRelativeLengths() const override;
 
     virtual LayoutObject* createLayoutObject(const LayoutStyle&) override;