Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/modules/encryptedmedia/MediaKeySession.h

 /*
  * Copyright (C) 2013 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 18 matching lines @@
 #include "bindings/core/v8/ActiveScriptWrappable.h"
 #include "bindings/core/v8/ScriptPromiseProperty.h"
 #include "core/dom/ActiveDOMObject.h"
 #include "core/dom/DOMArrayPiece.h"
 #include "modules/EventTargetModules.h"
 #include "modules/encryptedmedia/MediaKeyStatusMap.h"
 #include "platform/Timer.h"
 #include "platform/heap/Handle.h"
 #include "public/platform/WebContentDecryptionModuleSession.h"
 #include "public/platform/WebEncryptedMediaTypes.h"
-#include <memory>
 
 namespace blink {
 
 class DOMException;
 class GenericEventQueue;
 class MediaKeys;
 
 // References are held by JS only. However, even if all JS references are
 // dropped, it won't be garbage collected until close event received or
 // MediaKeys goes away (as determined by a WeakMember reference). This allows
@@ skipping 62 matching lines @@
     void expirationChanged(double updatedExpiryTimeInMS) override;
     void keysStatusesChange(const WebVector<WebEncryptedMediaKeyInformation>&, bool hasAdditionalUsableKey) override;
 
     // Called by NewSessionResult when the new session has been created.
     void finishGenerateRequest();
 
     // Called by LoadSessionResult when the session has been loaded.
     void finishLoad();
 
     Member<GenericEventQueue> m_asyncEventQueue;
-    std::unique_ptr<WebContentDecryptionModuleSession> m_session;
+    OwnPtr<WebContentDecryptionModuleSession> m_session;
 
     // Used to determine if MediaKeys is still active.
     WeakMember<MediaKeys> m_mediaKeys;
 
     // Session properties.
     WebEncryptedMediaSessionType m_sessionType;
     double m_expiration;
     Member<MediaKeyStatusMap> m_keyStatusesMap;
 
     // Session states.
     bool m_isUninitialized;
     bool m_isCallable;
     bool m_isClosed; // Is the CDM finished with this session?
 
     // Keep track of the closed promise.
     typedef ScriptPromiseProperty<Member<MediaKeySession>, ToV8UndefinedGenerator, Member<DOMException>> ClosedPromise;
     Member<ClosedPromise> m_closedPromise;
 
     HeapDeque<Member<PendingAction>> m_pendingActions;
     Timer<MediaKeySession> m_actionTimer;
 };
 
 } // namespace blink
 
 #endif // MediaKeySession_h