Oilpan: move core/workers to oilpan's heap.

Source/core/workers/WorkerNavigator.cpp

 /*
  * Copyright (C) 2008 Apple 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 12 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  */
 
 #include "config.h"
 
 #include "core/workers/WorkerNavigator.h"
 
 namespace WebCore {
 
+DEFINE_GC_INFO(WorkerNavigator);
+
 WorkerNavigator::WorkerNavigator(const String& userAgent)
     : m_userAgent(userAgent)
 {
     ScriptWrappable::init(this);
 }
 
 WorkerNavigator::~WorkerNavigator()
 {
 }
 
 String WorkerNavigator::userAgent() const
 {
     return m_userAgent;
 }
 
 } // namespace WebCore