Oilpan: Move all supplements of Page, Document, and WorkerClients to the managed heap.

Source/core/dom/Document.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2006 Alexey Proskuryakov (ap@webkit.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2008, 2009, 2011, 2012 Google Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) Research In Motion Limited 2010-2011. All rights reserved.
@@ skipping 5652 matching lines @@
     // perform weak processing of the registry when the document is active.
     if (registry && isActive())
         registry->clearWeakMembers(visitor);
 }
 
 void Document::trace(Visitor* visitor)
 {
     visitor->trace(m_styleSheetList);
     visitor->trace(m_visibilityObservers);
     visitor->registerWeakMembers<Document, &Document::clearWeakMembers>(this);
-    Supplementable<Document>::trace(visitor);
+    WillBeHeapSupplementable<Document>::trace(visitor);

[sof, 2014/04/29 13:40:21]

nit: DocumentSupplementable::trace() would be shorter.

[zerny-chromium, 2014/04/29 15:10:36]

Done.

     TreeScope::trace(visitor);
     ContainerNode::trace(visitor);
 }
 
 } // namespace WebCore