Oilpan: Prepare moving DateTimeChooser to Oilpan

Source/core/page/Chrome.cpp

 /*
  * Copyright (C) 2006, 2007, 2009, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2010 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 2012, Samsung Electronics. 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.
  *
@@ skipping 321 matching lines @@
 {
     m_client->enumerateChosenDirectory(fileChooser);
 }
 
 PassOwnPtr<ColorChooser> Chrome::createColorChooser(LocalFrame* frame, ColorChooserClient* client, const Color& initialColor)
 {
     notifyPopupOpeningObservers();
     return m_client->createColorChooser(frame, client, initialColor);
 }
 
-PassRefPtr<DateTimeChooser> Chrome::openDateTimeChooser(DateTimeChooserClient* client, const DateTimeChooserParameters& parameters)
+PassRefPtrWillBeRawPtr<DateTimeChooser> Chrome::openDateTimeChooser(DateTimeChooserClient* client, const DateTimeChooserParameters& parameters)
 {
     notifyPopupOpeningObservers();
     return m_client->openDateTimeChooser(client, parameters);
 }
 
 void Chrome::openTextDataListChooser(HTMLInputElement& input)
 {
     notifyPopupOpeningObservers();
     m_client->openTextDataListChooser(input);
 }
@@ skipping 52 matching lines @@
     for (size_t i = 0; i < observers.size(); ++i)
         observers[i]->willOpenPopup();
 }
 
 void Chrome::willBeDestroyed()
 {
     m_client->chromeDestroyed();
 }
 
 } // namespace WebCore