Have Document::nodeWillBeRemoved() take a reference

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 3480 matching lines @@
     NoEventDispatchAssertion assertNoEventDispatch;
     if (!m_ranges.isEmpty()) {
         HashSet<Range*>::const_iterator end = m_ranges.end();
         for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
             (*it)->nodeChildrenWillBeRemoved(container);
     }
 
     HashSet<NodeIterator*>::const_iterator nodeIteratorsEnd = m_nodeIterators.end();
     for (HashSet<NodeIterator*>::const_iterator it = m_nodeIterators.begin(); it != nodeIteratorsEnd; ++it) {
         for (Node* n = container->firstChild(); n; n = n->nextSibling())
-            (*it)->nodeWillBeRemoved(n);
+            (*it)->nodeWillBeRemoved(*n);
     }
 
     if (Frame* frame = this->frame()) {
         for (Node* n = container->firstChild(); n; n = n->nextSibling()) {
-            frame->eventHandler().nodeWillBeRemoved(n);
-            frame->selection().nodeWillBeRemoved(n);
-            frame->page()->dragCaretController().nodeWillBeRemoved(n);
+            frame->eventHandler().nodeWillBeRemoved(*n);
+            frame->selection().nodeWillBeRemoved(*n);
+            frame->page()->dragCaretController().nodeWillBeRemoved(*n);
         }
     }
 }
 
-void Document::nodeWillBeRemoved(Node* n)
+void Document::nodeWillBeRemoved(Node& n)
 {
     HashSet<NodeIterator*>::const_iterator nodeIteratorsEnd = m_nodeIterators.end();
     for (HashSet<NodeIterator*>::const_iterator it = m_nodeIterators.begin(); it != nodeIteratorsEnd; ++it)
         (*it)->nodeWillBeRemoved(n);
 
     if (!m_ranges.isEmpty()) {
         HashSet<Range*>::const_iterator rangesEnd = m_ranges.end();
         for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != rangesEnd; ++it)
             (*it)->nodeWillBeRemoved(n);
     }
@@ skipping 1734 matching lines @@
 void Document::modifiedStyleSheet(StyleSheet* sheet, RecalcStyleTime when, StyleResolverUpdateMode updateMode)
 {
     if (!isActive())
         return;
 
     styleEngine()->modifiedStyleSheet(sheet);
     styleResolverChanged(when, updateMode);
 }
 
 } // namespace WebCore