Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/SVGGraphicsElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 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 26 matching lines @@
     , SVGTests(this)
     , m_transform(SVGAnimatedTransformList::create(this, SVGNames::transformAttr, SVGTransformList::create()))
 {
     addToPropertyMap(m_transform);
 }
 
 SVGGraphicsElement::~SVGGraphicsElement()
 {
 }
 
-PassRefPtr<SVGMatrixTearOff> SVGGraphicsElement::getTransformToElement(SVGElement* target, ExceptionState& exceptionState)
+void SVGGraphicsElement::trace(Visitor* visitor)
+{
+    visitor->trace(m_transform);
+    SVGElement::trace(visitor);
+    SVGTests::trace(visitor);
+}
+
+PassRefPtrWillBeRawPtr<SVGMatrixTearOff> SVGGraphicsElement::getTransformToElement(SVGElement* target, ExceptionState& exceptionState)
 {
     AffineTransform ctm = getCTM(AllowStyleUpdate);
 
     if (target && target->isSVGGraphicsElement()) {
         AffineTransform targetCTM = toSVGGraphicsElement(target)->getCTM(AllowStyleUpdate);
         if (!targetCTM.isInvertible()) {
             exceptionState.throwDOMException(InvalidStateError, "The target transformation is not invertable.");
             return nullptr;
         }
         ctm = targetCTM.inverse() * ctm;
@@ skipping 47 matching lines @@
 AffineTransform SVGGraphicsElement::getCTM(StyleUpdateStrategy styleUpdateStrategy)
 {
     return computeCTM(NearestViewportScope, styleUpdateStrategy);
 }
 
 AffineTransform SVGGraphicsElement::getScreenCTM(StyleUpdateStrategy styleUpdateStrategy)
 {
     return computeCTM(ScreenScope, styleUpdateStrategy);
 }
 
-PassRefPtr<SVGMatrixTearOff> SVGGraphicsElement::getCTMFromJavascript()
+PassRefPtrWillBeRawPtr<SVGMatrixTearOff> SVGGraphicsElement::getCTMFromJavascript()
 {
     return SVGMatrixTearOff::create(getCTM());
 }
 
-PassRefPtr<SVGMatrixTearOff> SVGGraphicsElement::getScreenCTMFromJavascript()
+PassRefPtrWillBeRawPtr<SVGMatrixTearOff> SVGGraphicsElement::getScreenCTMFromJavascript()
 {
     return SVGMatrixTearOff::create(getScreenCTM());
 }
 
 AffineTransform SVGGraphicsElement::animatedLocalTransform() const
 {
     AffineTransform matrix;
     RenderStyle* style = renderer() ? renderer()->style() : 0;
 
     // If CSS property was set, use that, otherwise fallback to attribute (if set).
@@ skipping 102 matching lines @@
 {
     document().updateLayoutIgnorePendingStylesheets();
 
     // FIXME: Eventually we should support getBBox for detached elements.
     if (!renderer())
         return FloatRect();
 
     return renderer()->objectBoundingBox();
 }
 
-PassRefPtr<SVGRectTearOff> SVGGraphicsElement::getBBoxFromJavascript()
+PassRefPtrWillBeRawPtr<SVGRectTearOff> SVGGraphicsElement::getBBoxFromJavascript()
 {
     return SVGRectTearOff::create(SVGRect::create(getBBox()), 0, PropertyIsNotAnimVal);
 }
 
 RenderObject* SVGGraphicsElement::createRenderer(RenderStyle*)
 {
     // By default, any subclass is expected to do path-based drawing
     return new RenderSVGPath(this);
 }
 
 void SVGGraphicsElement::toClipPath(Path& path)
 {
     updatePathFromGraphicsElement(this, path);
     // FIXME: How do we know the element has done a layout?
     path.transform(animatedLocalTransform());
 }
 
 }