Merge 140483

Source/WebCore/workers/WorkerThread.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 249 matching lines @@
     // Mutex protection is necessary because stop() can be called before the context is fully created.
     MutexLocker lock(m_threadCreationMutex);
 
     // Ensure that tasks are being handled by thread event loop. If script execution weren't forbidden, a while(1) loop in JS could keep the thread alive forever.
     if (m_workerContext) {
         m_workerContext->script()->scheduleExecutionTermination();
 
 #if ENABLE(SQL_DATABASE)
         DatabaseManager::manager().interruptAllDatabasesForContext(m_workerContext.get());
 #endif
-        m_runLoop.postTask(WorkerThreadShutdownStartTask::create());
+        m_runLoop.postTaskAndTerminate(WorkerThreadShutdownStartTask::create());
+        return;
     }
     m_runLoop.terminate();
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(WORKERS)