Compute a more correct "screen scope" transform for SVGSVGElement

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

 /*
  * Copyright (C) 2004, 2005, 2006, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
  * Copyright (C) 2009, 2014 Apple Inc. All rights reserved.
  *
  * 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 62 matching lines @@
     return !m_elementsWithRelativeLengths.isEmpty();
   }
   static bool isAnimatableCSSProperty(const QualifiedName&);
 
   enum ApplyMotionTransform { ExcludeMotionTransform, IncludeMotionTransform };
   bool hasTransform(ApplyMotionTransform) const;
   AffineTransform calculateTransform(ApplyMotionTransform) const;
 
   enum CTMScope {
     NearestViewportScope,  // Used by SVGGraphicsElement::getCTM()
-    ScreenScope,           // Used by SVGGraphicsElement::getScreenCTM()
     AncestorScope  // Used by SVGSVGElement::get{Enclosure|Intersection}List()
   };
-  virtual AffineTransform localCoordinateSpaceTransform(CTMScope) const;
+  virtual AffineTransform localCoordinateSpaceTransform() const;
   virtual bool needsPendingResourceHandling() const { return true; }
 
   bool instanceUpdatesBlocked() const;
   void setInstanceUpdatesBlocked(bool);
 
   // Records the SVG element as having a Web Animation on an SVG attribute that
   // needs applying.
   void setWebAnimationsPending();
   void applyActiveWebAnimations();
 
@@ skipping 240 matching lines @@
   inline bool isElementOfType<const thisType>(const SVGElement& element) { \
     return is##thisType(element);                                          \
   }                                                                        \
   DEFINE_ELEMENT_TYPE_CASTS_WITH_FUNCTION(thisType)
 
 }  // namespace blink
 
 #include "core/SVGElementTypeHelpers.h"
 
 #endif  // SVGElement_h