Fix ASSERTS in worker code in OSX....

third_party/WebKit/WebCore/bindings/v8/WorkerScriptController.cpp

 /*
  * Copyright (C) 2009 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 37 matching lines @@
 
 WorkerScriptController::WorkerScriptController(WorkerContext* workerContext)
     : m_workerContext(workerContext)
     , m_proxy(new WorkerContextExecutionProxy(workerContext))
     , m_executionForbidden(false)
 {
 }
 
 WorkerScriptController::~WorkerScriptController()
 {
+    removeAllDOMObjectsInCurrentThread();
 }
 
 ScriptValue WorkerScriptController::evaluate(const ScriptSourceCode& sourceCode)
 {
     {
         MutexLocker lock(m_sharedDataMutex);
         if (m_executionForbidden)
             return ScriptValue();
     }
 
@@ skipping 16 matching lines @@
 }
 
 void WorkerScriptController::setException(ScriptValue /* exception */)
 {
     notImplemented();
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(WORKERS)