Compute a more correct "screen scope" transform for SVGSVGElement

third_party/WebKit/Source/core/svg/SVGSVGElement.h

 /*
  * Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2010 Rob Buis <buis@kde.org>
  * Copyright (C) 2014 Google, Inc.
  *
  * 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.
  *
@@ skipping 138 matching lines @@
   StaticNodeList* collectIntersectionOrEnclosureList(
       const FloatRect&,
       SVGElement*,
       GeometryMatchingMode) const;
 
   Member<SVGAnimatedLength> m_x;
   Member<SVGAnimatedLength> m_y;
   Member<SVGAnimatedLength> m_width;
   Member<SVGAnimatedLength> m_height;
 
-  AffineTransform localCoordinateSpaceTransform(
-      SVGElement::CTMScope) const override;
+  AffineTransform localCoordinateSpaceTransform() const override;
 
   Member<SMILTimeContainer> m_timeContainer;
   Member<SVGPoint> m_translation;
   Member<SVGViewSpec> m_viewSpec;
   float m_currentScale;
 
   friend class SVGCurrentTranslateTearOff;
 };
 
 }  // namespace blink
 
 #endif  // SVGSVGElement_h