Oilpan: Prepare to move select and option elements to Oilpan heap.

Source/core/accessibility/AXNodeObject.cpp

 /*
 * Copyright (C) 2012, 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
@@ skipping 995 matching lines @@
             staticText = textUnderElement();
         return staticText;
     }
 
     if (node->isTextNode())
         return textUnderElement();
 
     if (isHTMLSelectElement(*node)) {
         HTMLSelectElement& selectElement = toHTMLSelectElement(*node);
         int selectedIndex = selectElement.selectedIndex();
-        const Vector<HTMLElement*> listItems = selectElement.listItems();
+        const WillBeHeapVector<RawPtrWillBeMember<HTMLElement> >& listItems = selectElement.listItems();
         if (selectedIndex >= 0 && static_cast<size_t>(selectedIndex) < listItems.size()) {
             const AtomicString& overriddenDescription = listItems[selectedIndex]->fastGetAttribute(aria_labelAttr);
             if (!overriddenDescription.isNull())
                 return overriddenDescription;
         }
         if (!selectElement.multiple())
             return selectElement.value();
         return String();
     }
 
@@ skipping 654 matching lines @@
     float range = maxValueForRange() - minValueForRange();
     float value = valueForRange();
 
     value += range * (percentChange / 100);
     setValue(String::number(value));
 
     axObjectCache()->postNotification(node(), AXObjectCache::AXValueChanged, true);
 }
 
 } // namespace WebCore