Oilpan: remove unnecessary ENABLE(OILPAN) protections of trace() calls.

Source/modules/indexeddb/IDBRequest.cpp

 /*
  * Copyright (C) 2010 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 69 matching lines @@
 {
     ASSERT(m_readyState == DONE || m_readyState == EarlyDeath || !executionContext());
 }
 
 DEFINE_TRACE(IDBRequest)
 {
     visitor->trace(m_transaction);
     visitor->trace(m_source);
     visitor->trace(m_result);
     visitor->trace(m_error);
-#if ENABLE(OILPAN)
     visitor->trace(m_enqueuedEvents);
-#endif
     visitor->trace(m_pendingCursor);
     visitor->trace(m_cursorKey);
     visitor->trace(m_cursorPrimaryKey);
     RefCountedGarbageCollectedEventTargetWithInlineData<IDBRequest>::trace(visitor);
     ActiveDOMObject::trace(visitor);
 }
 
 ScriptValue IDBRequest::result(ExceptionState& exceptionState)
 {
     if (m_readyState != DONE) {
@@ skipping 438 matching lines @@
 
 void IDBRequest::dequeueEvent(Event* event)
 {
     for (size_t i = 0; i < m_enqueuedEvents.size(); ++i) {
         if (m_enqueuedEvents[i].get() == event)
             m_enqueuedEvents.remove(i);
     }
 }
 
 } // namespace blink