Rename renderer() to layoutObject().

Source/core/html/HTMLOptGroupElement.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, 2010 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 91 matching lines @@
 {
     RefPtrWillBeRawPtr<HTMLSelectElement> select = ownerSelectElement();
     if (select && select->usesMenuList())
         return false;
     return HTMLElement::supportsFocus();
 }
 
 void HTMLOptGroupElement::updateNonLayoutStyle()
 {
     m_style = originalStyleForRenderer();
-    if (renderer()) {
+    if (layoutObject()) {
         if (HTMLSelectElement* select = ownerSelectElement())
             select->updateListOnRenderer();
     }
 }
 
 LayoutStyle* HTMLOptGroupElement::nonRendererStyle() const
 {
     return m_style.get();
 }
 
@@ skipping 52 matching lines @@
     label.setTextContent(labelText);
     label.setAttribute(aria_labelAttr, AtomicString(labelText));
 }
 
 HTMLDivElement& HTMLOptGroupElement::optGroupLabelElement() const
 {
     return *toHTMLDivElement(closedShadowRoot()->getElementById(ShadowElementNames::optGroupLabel()));
 }
 
 } // namespace