Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/SVGFETileElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005 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 17 matching lines @@
 
 namespace blink {
 
 inline SVGFETileElement::SVGFETileElement(Document& document)
     : SVGFilterPrimitiveStandardAttributes(SVGNames::feTileTag, document)
     , m_in1(SVGAnimatedString::create(this, SVGNames::inAttr, SVGString::create()))
 {
     addToPropertyMap(m_in1);
 }
 
+void SVGFETileElement::trace(Visitor* visitor)
+{
+    visitor->trace(m_in1);
+    SVGFilterPrimitiveStandardAttributes::trace(visitor);
+}
+
 DEFINE_NODE_FACTORY(SVGFETileElement)
 
 void SVGFETileElement::parseAttribute(const QualifiedName& name, const AtomicString& value)
 {
     parseAttributeNew(name, value);
 }
 
 void SVGFETileElement::svgAttributeChanged(const QualifiedName& attrName)
 {
     if (attrName == SVGNames::inAttr) {
         SVGElement::InvalidationGuard invalidationGuard(this);
         invalidate();
         return;
     }
 
     SVGFilterPrimitiveStandardAttributes::svgAttributeChanged(attrName);
 }
 
-PassRefPtr<FilterEffect> SVGFETileElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
+PassRefPtrWillBeRawPtr<FilterEffect> SVGFETileElement::build(SVGFilterBuilder* filterBuilder, Filter* filter)
 {
     FilterEffect* input1 = filterBuilder->getEffectById(AtomicString(m_in1->currentValue()->value()));
 
     if (!input1)
         return nullptr;
 
-    RefPtr<FilterEffect> effect = FETile::create(filter);
+    RefPtrWillBeRawPtr<FilterEffect> effect = FETile::create(filter);
     effect->inputEffects().append(input1);
     return effect.release();
 }
 
 }