Have CharacterData constructor take a Document reference in argument

Source/core/dom/ProcessingInstruction.cpp

 /*
  * Copyright (C) 2000 Peter Kelly (pmk@post.com)
  * Copyright (C) 2006, 2008, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 18 matching lines @@
 #include "core/dom/StyleSheetCollections.h"
 #include "core/fetch/CSSStyleSheetResource.h"
 #include "core/fetch/FetchRequest.h"
 #include "core/fetch/ResourceFetcher.h"
 #include "core/fetch/XSLStyleSheetResource.h"
 #include "core/xml/XSLStyleSheet.h"
 #include "core/xml/parser/XMLDocumentParser.h" // for parseAttributes()
 
 namespace WebCore {
 
-inline ProcessingInstruction::ProcessingInstruction(Document* document, const String& target, const String& data)
+inline ProcessingInstruction::ProcessingInstruction(Document& document, const String& target, const String& data)
     : CharacterData(document, data, CreateOther)
     , m_target(target)
     , m_resource(0)
     , m_loading(false)
     , m_alternate(false)
     , m_createdByParser(false)
     , m_isCSS(false)
     , m_isXSL(false)
 {
     ScriptWrappable::init(this);
 }
 
-PassRefPtr<ProcessingInstruction> ProcessingInstruction::create(Document* document, const String& target, const String& data)
+PassRefPtr<ProcessingInstruction> ProcessingInstruction::create(Document& document, const String& target, const String& data)
 {
     return adoptRef(new ProcessingInstruction(document, target, data));
 }
 
 ProcessingInstruction::~ProcessingInstruction()
 {
     if (m_sheet)
         m_sheet->clearOwnerNode();
 
     if (m_resource)
@@ skipping 10 matching lines @@
 
 Node::NodeType ProcessingInstruction::nodeType() const
 {
     return PROCESSING_INSTRUCTION_NODE;
 }
 
 PassRefPtr<Node> ProcessingInstruction::cloneNode(bool /*deep*/)
 {
     // FIXME: Is it a problem that this does not copy m_localHref?
     // What about other data members?
-    return create(&document(), m_target, m_data);
+    return create(document(), m_target, m_data);
 }
 
 void ProcessingInstruction::checkStyleSheet()
 {
     if (m_target == "xml-stylesheet" && document().frame() && parentNode() == &document()) {
         // see http://www.w3.org/TR/xml-stylesheet/
         // ### support stylesheet included in a fragment of this (or another) document
         // ### make sure this gets called when adding from javascript
         bool attrsOk;
         const HashMap<String, String> attrs = parseAttributes(m_data, attrsOk);
@@ skipping 180 matching lines @@
         document().removedStyleSheet(removedSheet.get());
 }
 
 void ProcessingInstruction::finishParsingChildren()
 {
     m_createdByParser = false;
     CharacterData::finishParsingChildren();
 }
 
 } // namespace