Have EditCommand classes deal with Document references, not pointers

Source/core/editing/WrapContentsInDummySpanCommand.cpp

 /*
  * Copyright (C) 2005, 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 15 matching lines @@
 #include "config.h"
 #include "core/editing/WrapContentsInDummySpanCommand.h"
 
 #include "bindings/v8/ExceptionStatePlaceholder.h"
 #include "core/editing/ApplyStyleCommand.h"
 #include "core/html/HTMLElement.h"
 
 namespace WebCore {
 
 WrapContentsInDummySpanCommand::WrapContentsInDummySpanCommand(PassRefPtr<Element> element)
-    : SimpleEditCommand(&element->document())
+    : SimpleEditCommand(element->document())
     , m_element(element)
 {
     ASSERT(m_element);
 }
 
 void WrapContentsInDummySpanCommand::executeApply()
 {
     Vector<RefPtr<Node> > children;
     for (Node* child = m_element->firstChild(); child; child = child->nextSibling())
         children.append(child);
 
     size_t size = children.size();
     for (size_t i = 0; i < size; ++i)
         m_dummySpan->appendChild(children[i].release(), IGNORE_EXCEPTION);
 
     m_element->appendChild(m_dummySpan.get(), IGNORE_EXCEPTION);
 }
 
 void WrapContentsInDummySpanCommand::doApply()
 {
-    m_dummySpan = createStyleSpanElement(document());
+    m_dummySpan = createStyleSpanElement(&document());
 
     executeApply();
 }
 
 void WrapContentsInDummySpanCommand::doUnapply()
 {
     ASSERT(m_element);
 
     if (!m_dummySpan || !m_element->rendererIsEditable())
         return;
@@ skipping 21 matching lines @@
 
 #ifndef NDEBUG
 void WrapContentsInDummySpanCommand::getNodesInCommand(HashSet<Node*>& nodes)
 {
     addNodeAndDescendants(m_element.get(), nodes);
     addNodeAndDescendants(m_dummySpan.get(), nodes);
 }
 #endif
 
 } // namespace WebCore