Have EditCommand classes deal with Document references, not pointers

Source/core/editing/ReplaceNodeWithSpanCommand.cpp

 /*
  * Copyright (c) 2009 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 24 matching lines @@
 #include "bindings/v8/ExceptionStatePlaceholder.h"
 #include "core/editing/htmlediting.h"
 #include "core/html/HTMLElement.h"
 #include "wtf/Assertions.h"
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
 ReplaceNodeWithSpanCommand::ReplaceNodeWithSpanCommand(PassRefPtr<HTMLElement> element)
-    : SimpleEditCommand(&element->document())
+    : SimpleEditCommand(element->document())
     , m_elementToReplace(element)
 {
     ASSERT(m_elementToReplace);
 }
 
 static void swapInNodePreservingAttributesAndChildren(HTMLElement* newNode, HTMLElement* nodeToReplace)
 {
     ASSERT(nodeToReplace->inDocument());
     RefPtr<ContainerNode> parentNode = nodeToReplace->parentNode();
     parentNode->insertBefore(newNode, nodeToReplace);
@@ skipping 27 matching lines @@
 
 #ifndef NDEBUG
 void ReplaceNodeWithSpanCommand::getNodesInCommand(HashSet<Node*>& nodes)
 {
     addNodeAndDescendants(m_elementToReplace.get(), nodes);
     addNodeAndDescendants(m_spanElement.get(), nodes);
 }
 #endif
 
 } // namespace WebCore