Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/SVGPathParser.h

 /*
  * Copyright (C) 2002, 2003 The Karbon Developers
  * Copyright (C) 2006 Alexander Kellett <lypanov@kde.org>
  * Copyright (C) 2006, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007, 2009 Apple Inc. All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. 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.
  *
  * 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 SVGPathParser_h
 #define SVGPathParser_h
 
 #include "core/svg/SVGPathConsumer.h"
 #include "core/svg/SVGPathSeg.h"
+#include "platform/heap/Handle.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class SVGPathSource;
 
-class SVGPathParser {
-    WTF_MAKE_NONCOPYABLE(SVGPathParser); WTF_MAKE_FAST_ALLOCATED;
+class SVGPathParser final : public NoBaseWillBeGarbageCollected<SVGPathParser> {
+    WTF_MAKE_NONCOPYABLE(SVGPathParser); WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
 public:
     SVGPathParser();
 
     bool parsePathDataFromSource(PathParsingMode, bool checkForInitialMoveTo = true);
     void setCurrentConsumer(SVGPathConsumer* consumer) { m_consumer = consumer; }
     void setCurrentSource(SVGPathSource* source) { m_source = source; }
     void cleanup();
 
+    void trace(Visitor*);
+
 private:
     bool decomposeArcToCubic(float, float, float, FloatPoint&, FloatPoint&, bool largeArcFlag, bool sweepFlag);
     void parseClosePathSegment();
     bool parseMoveToSegment();
     bool parseLineToSegment();
     bool parseLineToHorizontalSegment();
     bool parseLineToVerticalSegment();
     bool parseCurveToCubicSegment();
     bool parseCurveToCubicSmoothSegment();
     bool parseCurveToQuadraticSegment();
     bool parseCurveToQuadraticSmoothSegment();
     bool parseArcToSegment();
 
-    SVGPathSource* m_source;
-    SVGPathConsumer* m_consumer;
+    RawPtrWillBeMember<SVGPathSource> m_source;
+    RawPtrWillBeMember<SVGPathConsumer> m_consumer;
     PathCoordinateMode m_mode;
     PathParsingMode m_pathParsingMode;
     SVGPathSegType m_lastCommand;
     bool m_closePath;
     FloatPoint m_controlPoint;
     FloatPoint m_currentPoint;
     FloatPoint m_subPathPoint;
 };
 
 } // namespace blink
 
 #endif // SVGPathParser_h