Have Frame::loader() return a reference

Source/core/html/parser/HTMLConstructionSite.cpp

 /*
  * Copyright (C) 2010 Google, Inc. All Rights Reserved.
  * Copyright (C) 2011 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
@@ skipping 280 matching lines @@
 
 PassRefPtr<HTMLFormElement> HTMLConstructionSite::takeForm()
 {
     return m_form.release();
 }
 
 void HTMLConstructionSite::dispatchDocumentElementAvailableIfNeeded()
 {
     ASSERT(m_document);
     if (m_document->frame() && !m_isParsingFragment)
-        m_document->frame()->loader()->dispatchDocumentElementAvailable();
+        m_document->frame()->loader().dispatchDocumentElementAvailable();
 }
 
 void HTMLConstructionSite::insertHTMLHtmlStartTagBeforeHTML(AtomicHTMLToken* token)
 {
     ASSERT(m_document);
     RefPtr<HTMLHtmlElement> element = HTMLHtmlElement::create(*m_document);
     setAttributes(element.get(), token, m_parserContentPolicy);
     attachLater(m_attachmentRoot, element);
     m_openElements.pushHTMLHtmlElement(HTMLStackItem::create(element, token));
 
@@ skipping 197 matching lines @@
     m_openElements.pushHTMLHeadElement(m_head);
 }
 
 void HTMLConstructionSite::insertHTMLBodyElement(AtomicHTMLToken* token)
 {
     ASSERT(!shouldFosterParent());
     RefPtr<Element> body = createHTMLElement(token);
     attachLater(currentNode(), body);
     m_openElements.pushHTMLBodyElement(HTMLStackItem::create(body.release(), token));
     if (Frame* frame = m_document->frame())
-        frame->loader()->client()->dispatchWillInsertBody();
+        frame->loader().client()->dispatchWillInsertBody();
 }
 
 void HTMLConstructionSite::insertHTMLFormElement(AtomicHTMLToken* token, bool isDemoted)
 {
     RefPtr<Element> element = createHTMLElement(token);
     ASSERT(element->hasTagName(formTag));
     m_form = static_pointer_cast<HTMLFormElement>(element.release());
     m_form->setDemoted(isDemoted);
     attachLater(currentNode(), m_form);
     m_openElements.push(HTMLStackItem::create(m_form, token));
@@ skipping 288 matching lines @@
 void HTMLConstructionSite::fosterParent(PassRefPtr<Node> node)
 {
     HTMLConstructionSiteTask task(HTMLConstructionSiteTask::Insert);
     findFosterSite(task);
     task.child = node;
     ASSERT(task.parent);
     queueTask(task);
 }
 
 }