Oilpan: move editing objects to the heap.

Source/core/editing/MoveSelectionCommand.h

Index: Source/core/editing/MoveSelectionCommand.h
diff --git a/Source/core/editing/MoveSelectionCommand.h b/Source/core/editing/MoveSelectionCommand.h
index 60a06b34b5f95cb7661b3e4c02c0e00dfbb85e13..dd55c6f759234e0432b7854c81a45b416b214ba2 100644
--- a/Source/core/editing/MoveSelectionCommand.h
+++ b/Source/core/editing/MoveSelectionCommand.h
@@ -34,18 +34,20 @@ class DocumentFragment;
 
 class MoveSelectionCommand FINAL : public CompositeEditCommand {
 public:
-    static PassRefPtr<MoveSelectionCommand> create(PassRefPtrWillBeRawPtr<DocumentFragment> fragment, const Position& position, bool smartInsert = false, bool smartDelete = false)
+    static PassRefPtrWillBeRawPtr<MoveSelectionCommand> create(PassRefPtrWillBeRawPtr<DocumentFragment> fragment, const Position& position, bool smartInsert = false, bool smartDelete = false)
     {
-        return adoptRef(new MoveSelectionCommand(fragment, position, smartInsert, smartDelete));
+        return adoptRefWillBeNoop(new MoveSelectionCommand(fragment, position, smartInsert, smartDelete));
     }
 
+    virtual void trace(Visitor*) OVERRIDE;
+
 private:
     MoveSelectionCommand(PassRefPtrWillBeRawPtr<DocumentFragment>, const Position&, bool smartInsert, bool smartDelete);
 
     virtual void doApply() OVERRIDE;
     virtual EditAction editingAction() const OVERRIDE;
 
-    RefPtrWillBePersistent<DocumentFragment> m_fragment;
+    RefPtrWillBeMember<DocumentFragment> m_fragment;
     Position m_position;
     bool m_smartInsert;
     bool m_smartDelete;