Have DOMPatchSupport and DocumentFragment deal with Document references

Source/core/inspector/DOMEditor.cpp

 /*
  * Copyright (C) 2012 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 203 matching lines @@
         , m_html(html)
         , m_newNode(0)
         , m_history(adoptPtr(new InspectorHistory()))
         , m_domEditor(adoptPtr(new DOMEditor(m_history.get())))
     {
     }
 
     virtual bool perform(ExceptionState& es)
     {
         m_oldHTML = createMarkup(m_node.get());
-        DOMPatchSupport domPatchSupport(m_domEditor.get(), m_node->ownerDocument());
+        ASSERT(m_node->ownerDocument());
+        DOMPatchSupport domPatchSupport(m_domEditor.get(), *m_node->ownerDocument());
         m_newNode = domPatchSupport.patchNode(m_node.get(), m_html, es);
         return !es.hadException();
     }
 
     virtual bool undo(ExceptionState& es)
     {
         return m_history->undo(es);
     }
 
     virtual bool redo(ExceptionState& es)
@@ skipping 216 matching lines @@
 bool DOMEditor::replaceWholeText(Text* textNode, const String& text, ErrorString* errorString)
 {
     TrackExceptionState es;
     bool result = replaceWholeText(textNode, text, es);
     populateErrorString(es, errorString);
     return result;
 }
 
 } // namespace WebCore