Have Frame::loader() return a reference

Source/core/html/HTMLFormElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  *
  * 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
@@ skipping 261 matching lines @@
 
     // Interactive validation must be done before dispatching the submit event.
     if (!validateInteractively(event)) {
         m_isSubmittingOrPreparingForSubmission = false;
         return false;
     }
 
     StringPairVector controlNamesAndValues;
     getTextFieldValues(controlNamesAndValues);
     RefPtr<FormState> formState = FormState::create(this, controlNamesAndValues, &document(), NotSubmittedByJavaScript);
-    frame->loader()->client()->dispatchWillSendSubmitEvent(formState.release());
+    frame->loader().client()->dispatchWillSendSubmitEvent(formState.release());
 
     if (dispatchEvent(Event::createCancelableBubble(EventTypeNames::submit)))
         m_shouldSubmit = true;
 
     m_isSubmittingOrPreparingForSubmission = false;
 
     if (m_shouldSubmit)
         submit(event, true, true, NotSubmittedByJavaScript);
 
     return m_shouldSubmit;
@@ skipping 98 matching lines @@
         document().addConsoleMessage(SecurityMessageSource, ErrorMessageLevel, "Blocked form submission to '" + submission->action().elidedString() + "' because the form's frame is sandboxed and the 'allow-forms' permission is not set.");
         return;
     }
 
     if (protocolIsJavaScript(submission->action())) {
         if (!document().contentSecurityPolicy()->allowFormAction(KURL(submission->action())))
             return;
         document().frame()->script().executeScriptIfJavaScriptURL(submission->action());
         return;
     }
-    submission->setReferrer(document().frame()->loader()->outgoingReferrer());
-    submission->setOrigin(document().frame()->loader()->outgoingOrigin());
+    submission->setReferrer(document().frame()->loader().outgoingReferrer());
+    submission->setOrigin(document().frame()->loader().outgoingOrigin());
 
     document().frame()->navigationScheduler().scheduleFormSubmission(submission);
 }
 
 void HTMLFormElement::reset()
 {
     Frame* frame = document().frame();
     if (m_isInResetFunction || !frame)
         return;
 
@@ skipping 19 matching lines @@
         return;
 
     if (!shouldAutocomplete() || !UserGestureIndicator::processingUserGesture()) {
         finishRequestAutocomplete(AutocompleteResultErrorDisabled);
         return;
     }
 
     StringPairVector controlNamesAndValues;
     getTextFieldValues(controlNamesAndValues);
     RefPtr<FormState> formState = FormState::create(this, controlNamesAndValues, &document(), SubmittedByJavaScript);
-    frame->loader()->client()->didRequestAutocomplete(formState.release());
+    frame->loader().client()->didRequestAutocomplete(formState.release());
 }
 
 void HTMLFormElement::finishRequestAutocomplete(AutocompleteResult result)
 {
     RefPtr<Event> event;
     if (result == AutocompleteResultSuccess)
         event = Event::create(EventTypeNames::autocomplete);
     else if (result == AutocompleteResultErrorDisabled)
         event = AutocompleteErrorEvent::create("disabled");
     else if (result == AutocompleteResultErrorCancel)
@@ skipping 353 matching lines @@
 }
 
 void HTMLFormElement::setDemoted(bool demoted)
 {
     if (demoted)
         UseCounter::count(document(), UseCounter::DemotedFormElement);
     m_wasDemoted = demoted;
 }
 
 } // namespace