Remove unnecessary .get() in DOMEditor::ReplaceChildNodeAction.

Source/core/inspector/DOMEditor.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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 332 matching lines @@
     {
     }
 
     virtual bool perform(ExceptionState& exceptionState) OVERRIDE
     {
         return redo(exceptionState);
     }
 
     virtual bool undo(ExceptionState& exceptionState) OVERRIDE
     {
-        // FIXME: Oilpan: The first .get() is unnecessary if m_oldNode is a
-        // Persistent or a Member.
-        m_parentNode->replaceChild(m_oldNode.get(), m_newNode.get(), exceptionState);
+        m_parentNode->replaceChild(m_oldNode, m_newNode.get(), exceptionState);
         return !exceptionState.hadException();
     }
 
     virtual bool redo(ExceptionState& exceptionState) OVERRIDE
     {
-        // FIXME: Oilpan: The first .get() is unnecessary if m_newNode is a
-        // Persistent or a Member.
-        m_parentNode->replaceChild(m_newNode.get(), m_oldNode.get(), exceptionState);
+        m_parentNode->replaceChild(m_newNode, m_oldNode.get(), exceptionState);
         return !exceptionState.hadException();
     }
 
     virtual void trace(Visitor* visitor) OVERRIDE
     {
         visitor->trace(m_parentNode);
         visitor->trace(m_newNode);
         visitor->trace(m_oldNode);
         InspectorHistory::Action::trace(visitor);
     }
@@ skipping 144 matching lines @@
     return result;
 }
 
 void DOMEditor::trace(Visitor* visitor)
 {
     visitor->trace(m_history);
 }
 
 } // namespace WebCore