Oilpan: move DOMWindow object to the oilpan heap.

Source/core/frame/Frame.h

 /*
  * Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
  *                     1999-2001 Lars Knoll <knoll@kde.org>
  *                     1999-2001 Antti Koivisto <koivisto@kde.org>
  *                     2000-2001 Simon Hausmann <hausmann@kde.org>
  *                     2000-2001 Dirk Mueller <mueller@kde.org>
  *                     2000 Stefan Schimanski <1Stein@gmx.de>
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2008 Eric Seidel <eric@webkit.org>
@@ skipping 10 matching lines @@
  *
  * 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 Frame_h
 #define Frame_h
 
+#include "heap/Handle.h"
 #include "wtf/Forward.h"
 #include "wtf/HashSet.h"
 #include "wtf/RefCounted.h"
 
 namespace blink {
 class WebLayer;
 }
 
 namespace WebCore {
 
@@ skipping 23 matching lines @@
     // NOTE: Page is moving out of Blink up into the browser process as
     // part of the site-isolation (out of process iframes) work.
     // FrameHost should be used instead where possible.
     Page* page() const;
     FrameHost* host() const; // Null when the frame is detached.
 
     bool isMainFrame() const;
 
     // FIXME: DOMWindow and Document should both be moved to LocalFrame
     // after RemoteFrame is complete enough to exist without them.
-    virtual void setDOMWindow(PassRefPtr<DOMWindow>);
+    virtual void setDOMWindow(PassRefPtrWillBeRawPtr<DOMWindow>);
     DOMWindow* domWindow() const;
     Document* document() const;
 
     ChromeClient& chromeClient() const;
 
     RenderView* contentRenderer() const; // Root of the render tree for the document contained in this frame.
 
     int64_t frameID() const { return m_frameID; }
 
     // FIXME: These should move to RemoteFrame when that is instantiated.
     void setRemotePlatformLayer(blink::WebLayer* remotePlatformLayer) { m_remotePlatformLayer = remotePlatformLayer; }
     blink::WebLayer* remotePlatformLayer() const { return m_remotePlatformLayer; }
 
     Settings* settings() const; // can be null
 
 protected:
     Frame(FrameHost*, HTMLFrameOwnerElement*);
 
     FrameHost* m_host;
     HTMLFrameOwnerElement* m_ownerElement;
 
-    RefPtr<DOMWindow> m_domWindow;
+    RefPtrWillBePersistent<DOMWindow> m_domWindow;
 
 private:
 
     HashSet<FrameDestructionObserver*> m_destructionObservers;
 
     // Temporary hack for history.
     int64_t m_frameID;
 
     blink::WebLayer* m_remotePlatformLayer;
 };
 
 inline DOMWindow* Frame::domWindow() const
 {
     return m_domWindow.get();
 }
 } // namespace WebCore
 
 #endif // Frame_h