Tried using CrossThreadPersistent for workerDebuggerAgents

Source/core/inspector/WorkerConsoleAgent.h

 /*
  * Copyright (C) 2011 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 21 matching lines @@
 #define WorkerConsoleAgent_h
 
 #include "core/inspector/InspectorConsoleAgent.h"
 #include "wtf/PassOwnPtr.h"
 
 namespace WebCore {
 
 class WorkerConsoleAgent FINAL : public InspectorConsoleAgent {
     WTF_MAKE_NONCOPYABLE(WorkerConsoleAgent);
 public:
-    static PassOwnPtr<WorkerConsoleAgent> create(InspectorTimelineAgent* timelineAgent, InjectedScriptManager* injectedScriptManager)
+    static PassOwnPtrWillBeRawPtr<WorkerConsoleAgent> create(InspectorTimelineAgent* timelineAgent, InjectedScriptManager* injectedScriptManager)
     {
-        return adoptPtr(new WorkerConsoleAgent(timelineAgent, injectedScriptManager));
+        return adoptPtrWillBeNoop(new WorkerConsoleAgent(timelineAgent, injectedScriptManager));
     }
     virtual ~WorkerConsoleAgent();
 
     virtual bool isWorkerAgent() OVERRIDE { return true; }
 
 private:
     WorkerConsoleAgent(InspectorTimelineAgent*, InjectedScriptManager*);
     virtual void addInspectedNode(ErrorString*, int nodeId) OVERRIDE;
 };
 
 } // namespace WebCore
 
 #endif // !defined(WorkerConsoleAgent_h)