Tried using CrossThreadPersistent for workerDebuggerAgents

Source/modules/webdatabase/DatabaseClient.cpp

 /*
  * Copyright (C) 2013 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 48 matching lines @@
 
 void DatabaseClient::didOpenDatabase(PassRefPtrWillBeRawPtr<Database> database, const String& domain, const String& name, const String& version)
 {
     if (m_inspectorAgent)
         m_inspectorAgent->didOpenDatabase(database, domain, name, version);
 }
 
 void DatabaseClient::createInspectorAgentFor(Page* page)
 {
     ASSERT(!m_inspectorAgent);
-    OwnPtr<InspectorDatabaseAgent> inspectorAgent = InspectorDatabaseAgent::create();
+    OwnPtrWillBeRawPtr<InspectorDatabaseAgent> inspectorAgent = InspectorDatabaseAgent::create();
     m_inspectorAgent = inspectorAgent.get();
     page->inspectorController().registerModuleAgent(inspectorAgent.release());
 }
 
 void provideDatabaseClientTo(Page& page, PassOwnPtrWillBeRawPtr<DatabaseClient> client)
 {
     DatabaseClient* clientPtr = client.get();
     page.provideSupplement(DatabaseClient::supplementName(), client);
     clientPtr->createInspectorAgentFor(&page);
 }
 
 void provideDatabaseClientToWorker(WorkerClients* workerClients, PassOwnPtrWillBeRawPtr<DatabaseClient> client)
 {
     workerClients->provideSupplement(DatabaseClient::supplementName(), client);
 }
 
 } // namespace WebCore