Have NodeWithIndex deal with references instead of pointers

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 3649 matching lines @@
         HashSet<Range*>::const_iterator end = m_ranges.end();
         for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
             (*it)->didRemoveText(text, offset, length);
     }
 
     // Update the markers for spelling and grammar checking.
     m_markers->removeMarkers(text, offset, length);
     m_markers->shiftMarkers(text, offset + length, 0 - length);
 }
 
-void Document::didMergeTextNodes(Text* oldNode, unsigned offset)
+void Document::didMergeTextNodes(Text& oldNode, unsigned offset)
 {
     if (!m_ranges.isEmpty()) {
         NodeWithIndex oldNodeWithIndex(oldNode);
         HashSet<Range*>::const_iterator end = m_ranges.end();
         for (HashSet<Range*>::const_iterator it = m_ranges.begin(); it != end; ++it)
             (*it)->didMergeTextNodes(oldNodeWithIndex, offset);
     }
 
     if (m_frame)
-        m_frame->selection().didMergeTextNodes(*oldNode, offset);
+        m_frame->selection().didMergeTextNodes(oldNode, offset);
 
     // FIXME: This should update markers for spelling and grammar checking.
 }
 
-void Document::didSplitTextNode(Text* oldNode)
+void Document::didSplitTextNode(Text& oldNode)
 {
     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)->didSplitTextNode(oldNode);
     }
 
     if (m_frame)
-        m_frame->selection().didSplitTextNode(*oldNode);
+        m_frame->selection().didSplitTextNode(oldNode);
 
     // FIXME: This should update markers for spelling and grammar checking.
 }
 
 void Document::setWindowAttributeEventListener(const AtomicString& eventType, PassRefPtr<EventListener> listener)
 {
     DOMWindow* domWindow = this->domWindow();
     if (!domWindow)
         return;
     domWindow->setAttributeEventListener(eventType, listener);
@@ skipping 1744 matching lines @@
 void Document::defaultEventHandler(Event* event)
 {
     if (frame() && frame()->remotePlatformLayer()) {
         frame()->chromeClient().forwardInputEvent(this, event);
         return;
     }
     Node::defaultEventHandler(event);
 }
 
 } // namespace WebCore