Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/modules/webdatabase/DatabaseThread.h

 /*
  * Copyright (C) 2007, 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
@@ skipping 13 matching lines @@
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 #ifndef DatabaseThread_h
 #define DatabaseThread_h
 
 #include "platform/WebThreadSupportingGC.h"
 #include "platform/heap/Handle.h"
 #include "wtf/HashMap.h"
+#include "wtf/OwnPtr.h"
+#include "wtf/PassOwnPtr.h"
 #include "wtf/ThreadingPrimitives.h"
-#include <memory>
 
 namespace blink {
 
 class Database;
 class DatabaseTask;
 class SQLTransactionClient;
 class SQLTransactionCoordinator;
 class TaskSynchronizer;
 
 class DatabaseThread : public GarbageCollectedFinalized<DatabaseThread> {
 public:
     static DatabaseThread* create() { return new DatabaseThread; }
     ~DatabaseThread();
     DECLARE_TRACE();
 
     // Callable only from the main thread.
     void start();
     void terminate();
 
     // Callable from the main thread or the database thread.
-    void scheduleTask(std::unique_ptr<DatabaseTask>);
+    void scheduleTask(PassOwnPtr<DatabaseTask>);
     bool isDatabaseThread() const;
 
     // Callable only from the database thread.
     void recordDatabaseOpen(Database*);
     void recordDatabaseClosed(Database*);
     bool isDatabaseOpen(Database*);
 
     SQLTransactionClient* transactionClient() { return m_transactionClient.get(); }
     SQLTransactionCoordinator* transactionCoordinator() { return m_transactionCoordinator.get(); }
 
 private:
     DatabaseThread();
 
     void setupDatabaseThread();
     void cleanupDatabaseThread();
     void cleanupDatabaseThreadCompleted();
 
-    std::unique_ptr<WebThreadSupportingGC> m_thread;
+    OwnPtr<WebThreadSupportingGC> m_thread;
 
     // This set keeps track of the open databases that have been used on this thread.
     // This must be updated in the database thread though it is constructed and
     // destructed in the context thread.
     HashSet<CrossThreadPersistent<Database>> m_openDatabaseSet;
 
-    std::unique_ptr<SQLTransactionClient> m_transactionClient;
+    OwnPtr<SQLTransactionClient> m_transactionClient;
     CrossThreadPersistent<SQLTransactionCoordinator> m_transactionCoordinator;
     TaskSynchronizer* m_cleanupSync;
 
     Mutex m_terminationRequestedMutex;
     bool m_terminationRequested;
 };
 
 } // namespace blink
 
 #endif // DatabaseThread_h