Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/modules/indexeddb/IDBDatabase.h

 /*
  * Copyright (C) 2010 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 25 matching lines @@
 #include "modules/ModulesExport.h"
 #include "modules/indexeddb/IDBDatabaseCallbacks.h"
 #include "modules/indexeddb/IDBHistograms.h"
 #include "modules/indexeddb/IDBMetadata.h"
 #include "modules/indexeddb/IDBObjectStore.h"
 #include "modules/indexeddb/IDBObjectStoreParameters.h"
 #include "modules/indexeddb/IDBTransaction.h"
 #include "modules/indexeddb/IndexedDB.h"
 #include "platform/heap/Handle.h"
 #include "public/platform/modules/indexeddb/WebIDBDatabase.h"
+#include "wtf/OwnPtr.h"
+#include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
-#include <memory>
 
 namespace blink {
 
 class DOMException;
 class ExceptionState;
 class ExecutionContext;
 
 class MODULES_EXPORT IDBDatabase final
     : public EventTargetWithInlineData
     , public ActiveScriptWrappable
     , public ActiveDOMObject {
     USING_GARBAGE_COLLECTED_MIXIN(IDBDatabase);
     DEFINE_WRAPPERTYPEINFO();
 public:
-    static IDBDatabase* create(ExecutionContext*, std::unique_ptr<WebIDBDatabase>, IDBDatabaseCallbacks*);
+    static IDBDatabase* create(ExecutionContext*, PassOwnPtr<WebIDBDatabase>, IDBDatabaseCallbacks*);
     ~IDBDatabase() override;
     DECLARE_VIRTUAL_TRACE();
 
     void setMetadata(const IDBDatabaseMetadata& metadata) { m_metadata = metadata; }
     void indexCreated(int64_t objectStoreId, const IDBIndexMetadata&);
     void indexDeleted(int64_t objectStoreId, int64_t indexId);
     void transactionCreated(IDBTransaction*);
     void transactionFinished(const IDBTransaction*);
 
     // Implement the IDL
@@ skipping 58 matching lines @@
     static const char transactionReadOnlyErrorMessage[];
     static const char databaseClosedErrorMessage[];
 
     static void recordApiCallsHistogram(IndexedDatabaseMethods);
 
 protected:
     // EventTarget
     DispatchEventResult dispatchEventInternal(Event*) override;
 
 private:
-    IDBDatabase(ExecutionContext*, std::unique_ptr<WebIDBDatabase>, IDBDatabaseCallbacks*);
+    IDBDatabase(ExecutionContext*, PassOwnPtr<WebIDBDatabase>, IDBDatabaseCallbacks*);
 
     IDBObjectStore* createObjectStore(const String& name, const IDBKeyPath&, bool autoIncrement, ExceptionState&);
     void closeConnection();
 
     IDBDatabaseMetadata m_metadata;
-    std::unique_ptr<WebIDBDatabase> m_backend;
+    OwnPtr<WebIDBDatabase> m_backend;
     Member<IDBTransaction> m_versionChangeTransaction;
     HeapHashMap<int64_t, Member<IDBTransaction>> m_transactions;
 
     bool m_closePending = false;
     bool m_contextStopped = false;
 
     // Keep track of the versionchange events waiting to be fired on this
     // database so that we can cancel them if the database closes.
     HeapVector<Member<Event>> m_enqueuedEvents;
 
     Member<IDBDatabaseCallbacks> m_databaseCallbacks;
 };
 
 } // namespace blink
 
 #endif // IDBDatabase_h