Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/SVGTextContentElement.h

 /*
  * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2008 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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #ifndef SVGTextContentElement_h
 #define SVGTextContentElement_h
 
 #include "core/svg/SVGAnimatedBoolean.h"
 #include "core/svg/SVGAnimatedEnumeration.h"
 #include "core/svg/SVGAnimatedLength.h"
 #include "core/svg/SVGGraphicsElement.h"
 #include "core/svg/SVGPointTearOff.h"
+#include "platform/heap/Handle.h"
 
 namespace blink {
 
 class ExceptionState;
 
 enum SVGLengthAdjustType {
     SVGLengthAdjustUnknown,
     SVGLengthAdjustSpacing,
     SVGLengthAdjustSpacingAndGlyphs
 };
 template<> const SVGEnumerationStringEntries& getStaticStringEntries<SVGLengthAdjustType>();
 
 class SVGTextContentElement : public SVGGraphicsElement {
     DEFINE_WRAPPERTYPEINFO();
 public:
     // Forward declare enumerations in the W3C naming scheme, for IDL generation.
     enum {
         LENGTHADJUST_UNKNOWN = SVGLengthAdjustUnknown,
         LENGTHADJUST_SPACING = SVGLengthAdjustSpacing,
         LENGTHADJUST_SPACINGANDGLYPHS = SVGLengthAdjustSpacingAndGlyphs
     };
 
     unsigned getNumberOfChars();
     float getComputedTextLength();
     float getSubStringLength(unsigned charnum, unsigned nchars, ExceptionState&);
-    PassRefPtr<SVGPointTearOff> getStartPositionOfChar(unsigned charnum, ExceptionState&);
-    PassRefPtr<SVGPointTearOff> getEndPositionOfChar(unsigned charnum, ExceptionState&);
-    PassRefPtr<SVGRectTearOff> getExtentOfChar(unsigned charnum, ExceptionState&);
+    PassRefPtrWillBeRawPtr<SVGPointTearOff> getStartPositionOfChar(unsigned charnum, ExceptionState&);
+    PassRefPtrWillBeRawPtr<SVGPointTearOff> getEndPositionOfChar(unsigned charnum, ExceptionState&);
+    PassRefPtrWillBeRawPtr<SVGRectTearOff> getExtentOfChar(unsigned charnum, ExceptionState&);
     float getRotationOfChar(unsigned charnum, ExceptionState&);
-    int getCharNumAtPosition(PassRefPtr<SVGPointTearOff>, ExceptionState&);
+    int getCharNumAtPosition(PassRefPtrWillBeRawPtr<SVGPointTearOff>, ExceptionState&);
     void selectSubString(unsigned charnum, unsigned nchars, ExceptionState&);
 
     static SVGTextContentElement* elementFromRenderer(RenderObject*);
 
     SVGAnimatedLength* textLength() { return m_textLength.get(); }
     bool textLengthIsSpecifiedByUser() { return m_textLengthIsSpecifiedByUser; }
     SVGAnimatedEnumeration<SVGLengthAdjustType>* lengthAdjust() { return m_lengthAdjust.get(); }
 
+    virtual void trace(Visitor*) override;
+
 protected:
     SVGTextContentElement(const QualifiedName&, Document&);
 
     bool isSupportedAttribute(const QualifiedName&);
     virtual void parseAttribute(const QualifiedName&, const AtomicString&) override;
     virtual bool isPresentationAttribute(const QualifiedName&) const override final;
     virtual void collectStyleForPresentationAttribute(const QualifiedName&, const AtomicString&, MutableStylePropertySet*) override final;
     virtual void svgAttributeChanged(const QualifiedName&) override;
 
     virtual bool selfHasRelativeLengths() const override;
 
 private:
     virtual bool isTextContent() const override final { return true; }
 
-    RefPtr<SVGAnimatedLength> m_textLength;
+    RefPtrWillBeMember<SVGAnimatedLength> m_textLength;
     bool m_textLengthIsSpecifiedByUser;
-    RefPtr<SVGAnimatedEnumeration<SVGLengthAdjustType> > m_lengthAdjust;
+    RefPtrWillBeMember<SVGAnimatedEnumeration<SVGLengthAdjustType> > m_lengthAdjust;
 };
 
 inline bool isSVGTextContentElement(const SVGElement& element)
 {
     return element.isTextContent();
 }
 
 DEFINE_SVGELEMENT_TYPE_CASTS_WITH_FUNCTION(SVGTextContentElement);
 
 } // namespace blink
 
 #endif // SVGTextContentElement_h