Oilpan: Remove guardRef and guardDeref from TreeScope.

Source/core/html/shadow/DateTimeEditElement.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
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 430 matching lines @@
 
 DateTimeEditElement::DateTimeEditElement(Document& document, EditControlOwner& editControlOwner)
     : HTMLDivElement(document)
     , m_editControlOwner(&editControlOwner)
 {
     setHasCustomStyleCallbacks();
 }
 
 DateTimeEditElement::~DateTimeEditElement()
 {
+#if !ENABLE(OILPAN)
     for (size_t fieldIndex = 0; fieldIndex < m_fields.size(); ++fieldIndex)
         m_fields[fieldIndex]->removeEventHandler();
+#endif
 }
 
 inline Element* DateTimeEditElement::fieldsWrapperElement() const
 {
     ASSERT(firstChild());
     return toElement(firstChild());
 }
 
 void DateTimeEditElement::addField(PassRefPtr<DateTimeFieldElement> field)
 {
@@ skipping 333 matching lines @@
 {
     DateTimeFieldsState dateTimeFieldsState;
     for (size_t fieldIndex = 0; fieldIndex < m_fields.size(); ++fieldIndex)
         m_fields[fieldIndex]->populateDateTimeFieldsState(dateTimeFieldsState);
     return dateTimeFieldsState;
 }
 
 } // namespace WebCore
 
 #endif