Revert "Extract ContextLifecycleNotifier from ScriptExecutionContext."

Source/core/workers/WorkerContext.h

 /*
  * Copyright (C) 2008, 2009 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 61 matching lines @@
         virtual String userAgent(const KURL&) const;
 
         virtual void disableEval(const String& errorMessage) OVERRIDE;
 
         WorkerScriptController* script() { return m_script.get(); }
         void clearScript() { m_script.clear(); }
         void clearInspector();
 
         WorkerThread* thread() const { return m_thread; }
 
+        bool hasPendingActivity() const;
+
         virtual void postTask(PassOwnPtr<Task>) OVERRIDE; // Executes the task on context's thread asynchronously.
 
         // WorkerGlobalScope
         WorkerContext* self() { return this; }
         WorkerLocation* location() const;
         void close();
 
         DEFINE_ATTRIBUTE_EVENT_LISTENER(error);
 
         // WorkerUtils
@@ skipping 87 matching lines @@
         OwnPtr<WorkerEventQueue> m_eventQueue;
 
         RefPtr<SecurityOrigin> m_topOrigin;
 
         double m_timeOrigin;
     };
 
 } // namespace WebCore
 
 #endif // WorkerContext_h