Oilpan: move editing objects to the heap.

Source/core/editing/InsertListCommand.h

 /*
  * Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 18 matching lines @@
 #include "core/editing/CompositeEditCommand.h"
 
 namespace WebCore {
 
 class HTMLElement;
 
 class InsertListCommand FINAL : public CompositeEditCommand {
 public:
     enum Type { OrderedList, UnorderedList };
 
-    static PassRefPtr<InsertListCommand> create(Document& document, Type listType)
+    static PassRefPtrWillBeRawPtr<InsertListCommand> create(Document& document, Type listType)
     {
-        return adoptRef(new InsertListCommand(document, listType));
+        return adoptRefWillBeNoop(new InsertListCommand(document, listType));
     }
 
     virtual bool preservesTypingStyle() const OVERRIDE { return true; }
 
+    virtual void trace(Visitor*) OVERRIDE;
+
 private:
     InsertListCommand(Document&, Type);
 
     virtual void doApply() OVERRIDE;
     virtual EditAction editingAction() const OVERRIDE { return EditActionInsertList; }
 
     HTMLElement* fixOrphanedListChild(Node*);
     bool selectionHasListOfType(const VisibleSelection& selection, const QualifiedName&);
     PassRefPtrWillBeRawPtr<HTMLElement> mergeWithNeighboringLists(PassRefPtrWillBeRawPtr<HTMLElement>);
     void doApplyForSingleParagraph(bool forceCreateList, const QualifiedName&, Range& currentSelection);
     void unlistifyParagraph(const VisiblePosition& originalStart, HTMLElement* listNode, Node* listChildNode);
     PassRefPtrWillBeRawPtr<HTMLElement> listifyParagraph(const VisiblePosition& originalStart, const QualifiedName& listTag);
-    RefPtrWillBePersistent<HTMLElement> m_listElement;
+
+    RefPtrWillBeMember<HTMLElement> m_listElement;
     Type m_type;
 };
 
 } // namespace WebCore
 
 #endif // InsertListCommand_h