[DevTools] Added public method for async execution of scripts

Source/core/dom/ExecutionContext.h

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2012 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 134 matching lines @@
 
     bool dispatchErrorEvent(PassRefPtrWillBeRawPtr<ErrorEvent>, AccessControlStatus);
 
 #if !ENABLE(OILPAN)
     virtual void refExecutionContext() = 0;
     virtual void derefExecutionContext() = 0;
 #endif
     // LifecycleContext implementation.
 
     // Implementation details for DOMTimer. No other classes should call these functions.
-    int installNewTimeout(PassOwnPtr<ScheduledAction>, int timeout, bool singleShot);
+    int installNewTimeout(PassOwnPtr<ScheduledActionBase>, int timeout, bool singleShot);
     void removeTimeoutByID(int timeoutID); // This makes underlying DOMTimer instance destructed.
 
     SandboxFlags m_sandboxFlags;
 
     int m_circularSequentialID;
     typedef HashMap<int, OwnPtr<DOMTimer> > TimeoutMap;
     TimeoutMap m_timeouts;
 
     bool m_inDispatchErrorEvent;
     class PendingException;
     OwnPtrWillBeMember<WillBeHeapVector<OwnPtrWillBeMember<PendingException> > > m_pendingExceptions;
 
     bool m_activeDOMObjectsAreSuspended;
     bool m_activeDOMObjectsAreStopped;
 
     OwnPtr<PublicURLManager> m_publicURLManager;
 
     // The location of this member is important; to make sure contextDestroyed() notification on
     // ExecutionContext's members (notably m_timeouts) is called before they are destructed,
     // m_lifecycleNotifer should be placed *after* such members.
     OwnPtr<ContextLifecycleNotifier> m_lifecycleNotifier;
 };
 
 } // namespace blink
 
 #endif // ExecutionContext_h