Oilpan: move SVG property hierarchy to the heap.

Source/core/svg/RadialGradientAttributes.h

 /*
  * Copyright (C) 2006 Nikolas Zimmermann <zimmermann@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 RadialGradientAttributes_h
 #define RadialGradientAttributes_h
 
 #include "core/svg/GradientAttributes.h"
 
 namespace blink {
-struct RadialGradientAttributes : GradientAttributes {
+struct RadialGradientAttributes final : GradientAttributes {
+    DISALLOW_ALLOCATION();
+public:
     RadialGradientAttributes()
         : m_cx(SVGLength::create(LengthModeWidth))
         , m_cy(SVGLength::create(LengthModeHeight))
         , m_r(SVGLength::create(LengthModeOther))
         , m_fx(SVGLength::create(LengthModeWidth))
         , m_fy(SVGLength::create(LengthModeHeight))
         , m_fr(SVGLength::create(LengthModeOther))
         , m_cxSet(false)
         , m_cySet(false)
         , m_rSet(false)
         , m_fxSet(false)
         , m_fySet(false)
         , m_frSet(false)
     {
         m_cx->setValueAsString("50%", IGNORE_EXCEPTION);
         m_cy->setValueAsString("50%", IGNORE_EXCEPTION);
         m_r->setValueAsString("50%", IGNORE_EXCEPTION);
     }
 
     SVGLength* cx() const { return m_cx.get(); }
     SVGLength* cy() const { return m_cy.get(); }
     SVGLength* r() const { return m_r.get(); }
     SVGLength* fx() const { return m_fx.get(); }
     SVGLength* fy() const { return m_fy.get(); }
     SVGLength* fr() const { return m_fr.get(); }
 
-    void setCx(PassRefPtr<SVGLength> value) { m_cx = value; m_cxSet = true; }
-    void setCy(PassRefPtr<SVGLength> value) { m_cy = value; m_cySet = true; }
-    void setR(PassRefPtr<SVGLength> value) { m_r = value; m_rSet = true; }
-    void setFx(PassRefPtr<SVGLength> value) { m_fx = value; m_fxSet = true; }
-    void setFy(PassRefPtr<SVGLength> value) { m_fy = value; m_fySet = true; }
-    void setFr(PassRefPtr<SVGLength> value) { m_fr = value; m_frSet = true; }
+    void setCx(PassRefPtrWillBeRawPtr<SVGLength> value) { m_cx = value; m_cxSet = true; }
+    void setCy(PassRefPtrWillBeRawPtr<SVGLength> value) { m_cy = value; m_cySet = true; }
+    void setR(PassRefPtrWillBeRawPtr<SVGLength> value) { m_r = value; m_rSet = true; }
+    void setFx(PassRefPtrWillBeRawPtr<SVGLength> value) { m_fx = value; m_fxSet = true; }
+    void setFy(PassRefPtrWillBeRawPtr<SVGLength> value) { m_fy = value; m_fySet = true; }
+    void setFr(PassRefPtrWillBeRawPtr<SVGLength> value) { m_fr = value; m_frSet = true; }
 
     bool hasCx() const { return m_cxSet; }
     bool hasCy() const { return m_cySet; }
     bool hasR() const { return m_rSet; }
     bool hasFx() const { return m_fxSet; }
     bool hasFy() const { return m_fySet; }
     bool hasFr() const { return m_frSet; }
 
+    void trace(Visitor* visitor)
+    {
+        visitor->trace(m_cx);
+        visitor->trace(m_cy);
+        visitor->trace(m_r);
+        visitor->trace(m_fx);
+        visitor->trace(m_fy);
+        visitor->trace(m_fr);
+    }
+
 private:
     // Properties
-    RefPtr<SVGLength> m_cx;
-    RefPtr<SVGLength> m_cy;
-    RefPtr<SVGLength> m_r;
-    RefPtr<SVGLength> m_fx;
-    RefPtr<SVGLength> m_fy;
-    RefPtr<SVGLength> m_fr;
+    RefPtrWillBeMember<SVGLength> m_cx;
+    RefPtrWillBeMember<SVGLength> m_cy;
+    RefPtrWillBeMember<SVGLength> m_r;
+    RefPtrWillBeMember<SVGLength> m_fx;
+    RefPtrWillBeMember<SVGLength> m_fy;
+    RefPtrWillBeMember<SVGLength> m_fr;
 
     // Property states
     bool m_cxSet : 1;
     bool m_cySet : 1;
     bool m_rSet : 1;
     bool m_fxSet : 1;
     bool m_fySet : 1;
     bool m_frSet : 1;
 };
 
 } // namespace blink
 
 #endif