Clean up creation of "detached" SVG* data type objects

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

 /*
  * Copyright (C) 2004, 2005, 2006 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2010 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Apple Inc. All rights reserved.
  * 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 112 matching lines @@
 
   void CommitChange() override {
     DCHECK(contextElement());
     toSVGSVGElement(contextElement())->UpdateUserTransform();
   }
 
  private:
   SVGCurrentTranslateTearOff(SVGSVGElement* context_element)
       : SVGPointTearOff(context_element->translation_,
                         context_element,
-                        kPropertyIsNotAnimVal) {}
+                        kPropertyIsNotAnimVal,
+                        QualifiedName::Null()) {}
 };
 
 SVGPointTearOff* SVGSVGElement::currentTranslateFromJavascript() {
   return SVGCurrentTranslateTearOff::Create(this);
 }
 
 void SVGSVGElement::SetCurrentTranslate(const FloatPoint& point) {
   translation_->SetValue(point);
   UpdateUserTransform();
 }
@@ skipping 270 matching lines @@
   return CheckIntersectionOrEnclosure(*element, rect->Target()->Value(),
                                       kCheckEnclosure);
 }
 
 void SVGSVGElement::deselectAll() {
   if (LocalFrame* frame = GetDocument().GetFrame())
     frame->Selection().Clear();
 }
 
 SVGNumberTearOff* SVGSVGElement::createSVGNumber() {
-  return SVGNumberTearOff::Create(SVGNumber::Create(0.0f), 0,
-                                  kPropertyIsNotAnimVal);
+  return SVGNumberTearOff::CreateDetached();
 }
 
 SVGLengthTearOff* SVGSVGElement::createSVGLength() {
-  return SVGLengthTearOff::Create(SVGLength::Create(), 0,
-                                  kPropertyIsNotAnimVal);
+  return SVGLengthTearOff::CreateDetached();
 }
 
 SVGAngleTearOff* SVGSVGElement::createSVGAngle() {
-  return SVGAngleTearOff::Create(SVGAngle::Create(), 0, kPropertyIsNotAnimVal);
+  return SVGAngleTearOff::CreateDetached();
 }
 
 SVGPointTearOff* SVGSVGElement::createSVGPoint() {
-  return SVGPointTearOff::Create(SVGPoint::Create(), 0, kPropertyIsNotAnimVal);
+  return SVGPointTearOff::CreateDetached(FloatPoint(0, 0));
 }
 
 SVGMatrixTearOff* SVGSVGElement::createSVGMatrix() {
   return SVGMatrixTearOff::Create(AffineTransform());
 }
 
 SVGRectTearOff* SVGSVGElement::createSVGRect() {
-  return SVGRectTearOff::Create(SVGRect::Create(), 0, kPropertyIsNotAnimVal);
+  return SVGRectTearOff::CreateDetached(FloatRect(0, 0, 0, 0));
 }
 
 SVGTransformTearOff* SVGSVGElement::createSVGTransform() {
-  return SVGTransformTearOff::Create(SVGTransform::Create(kSvgTransformMatrix),
-                                     0, kPropertyIsNotAnimVal);
+  return SVGTransformTearOff::CreateDetached();
 }
 
 SVGTransformTearOff* SVGSVGElement::createSVGTransformFromMatrix(
     SVGMatrixTearOff* matrix) {
   return SVGTransformTearOff::Create(matrix);
 }
 
 AffineTransform SVGSVGElement::LocalCoordinateSpaceTransform(
     CTMScope mode) const {
   AffineTransform transform;
@@ skipping 302 matching lines @@
   visitor->Trace(width_);
   visitor->Trace(height_);
   visitor->Trace(translation_);
   visitor->Trace(time_container_);
   visitor->Trace(view_spec_);
   SVGGraphicsElement::Trace(visitor);
   SVGFitToViewBox::Trace(visitor);
 }
 
 }  // namespace blink