Have ReplaceSelectionCommand::InsertedNodes API take references in argument

Source/core/editing/ReplaceSelectionCommand.h

 /*
  * Copyright (C) 2005, 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 42 matching lines @@
     }
 
 private:
     ReplaceSelectionCommand(Document&, PassRefPtr<DocumentFragment>, CommandOptions, EditAction);
 
     virtual void doApply();
     virtual EditAction editingAction() const;
 
     class InsertedNodes {
     public:
-        void respondToNodeInsertion(Node*);
-        void willRemoveNodePreservingChildren(Node*);
-        void willRemoveNode(Node*);
-        void didReplaceNode(Node*, Node* newNode);
+        void respondToNodeInsertion(Node&);
+        void willRemoveNodePreservingChildren(Node&);
+        void willRemoveNode(Node&);
+        void didReplaceNode(Node&, Node& newNode);
 
         Node* firstNodeInserted() const { return m_firstNodeInserted.get(); }
         Node& lastLeafInserted() const { ASSERT(m_lastNodeInserted); return m_lastNodeInserted->lastDescendant(); }
         Node* pastLastLeaf() const { return m_lastNodeInserted ? NodeTraversal::next(&lastLeafInserted()) : 0; }
 
     private:
         RefPtr<Node> m_firstNodeInserted;
         RefPtr<Node> m_lastNodeInserted;
     };
 
@@ skipping 36 matching lines @@
     bool m_preventNesting;
     bool m_movingParagraph;
     EditAction m_editAction;
     bool m_sanitizeFragment;
     bool m_shouldMergeEnd;
 };
 
 } // namespace WebCore
 
 #endif // ReplaceSelectionCommand_h