Convert DocumentParser code to Use more reference

Source/core/html/parser/HTMLViewSourceParser.cpp

 /*
  * Copyright (C) 2010 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:
  * 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/html/parser/HTMLViewSourceParser.h"
 
 #include "core/dom/DOMImplementation.h"
 #include "core/html/parser/HTMLParserIdioms.h"
 #include "core/html/parser/HTMLParserOptions.h"
 #include "core/html/parser/HTMLToken.h"
 
 namespace WebCore {
 
-// FIXME: HTMLViewSourceDocument should be a reference.
-HTMLViewSourceParser::HTMLViewSourceParser(HTMLViewSourceDocument* document, const String& mimeType)
-    : DecodedDataDocumentParser(*document)
-    , m_tokenizer(HTMLTokenizer::create(HTMLParserOptions(document)))
+HTMLViewSourceParser::HTMLViewSourceParser(HTMLViewSourceDocument& document, const String& mimeType)
+    : DecodedDataDocumentParser(document)
+    , m_tokenizer(HTMLTokenizer::create(HTMLParserOptions(&document)))
 {
     if (mimeType != "text/html" && !DOMImplementation::isXMLMIMEType(mimeType))
         m_tokenizer->setState(HTMLTokenizer::PLAINTEXTState);
 }
 
 void HTMLViewSourceParser::pumpTokenizer()
 {
     while (true) {
         m_sourceTracker.start(m_input.current(), m_tokenizer.get(), m_token);
         if (!m_tokenizer->nextToken(m_input.current(), m_token))
@@ skipping 17 matching lines @@
 
 void HTMLViewSourceParser::finish()
 {
     if (!m_input.haveSeenEndOfFile())
         m_input.markEndOfFile();
     pumpTokenizer();
     document()->finishedParsing();
 }
 
 }