SVGElement::parseAttribute resolves property via property map (Step 2.6)

Source/core/svg/SVGStyleElement.h

 /*
  * Copyright (C) 2004, 2005 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 36 matching lines @@
     void setMedia(const AtomicString&);
 
     virtual String title() const override;
     void setTitle(const AtomicString&);
 
     virtual void trace(Visitor*) override;
 
 private:
     SVGStyleElement(Document&, bool createdByParser);
 
-    bool isSupportedAttribute(const QualifiedName&);
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) override;
     virtual InsertionNotificationRequest insertedInto(ContainerNode*) override;
     virtual void didNotifySubtreeInsertionsToDocument() override;
     virtual void removedFrom(ContainerNode*) override;
     virtual void childrenChanged(const ChildrenChange&) override;
 
     virtual void finishParsingChildren() override;
     virtual bool rendererIsNeeded(const RenderStyle&) override { return false; }
 
     virtual bool sheetLoaded() override { return StyleElement::sheetLoaded(document()); }
     virtual void startLoadingDynamicSheet() override { StyleElement::startLoadingDynamicSheet(document()); }
     virtual Timer<SVGElement>* svgLoadEventTimer() override { return &m_svgLoadEventTimer; }
 
     Timer<SVGElement> m_svgLoadEventTimer;
 };
 
 } // namespace blink
 
 #endif // SVGStyleElement_h