Oilpan: Remove most WillBe types from the code base

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 46 matching lines @@
 //
 // Because this object controls the lifetime of the WebContentDecryptionModuleSession,
 // it may outlive any JavaScript references as long as the MediaKeys object is alive.
 // The WebContentDecryptionModuleSession has the same lifetime as this object.
 class MediaKeySession final
     : public RefCountedGarbageCollectedEventTargetWithInlineData<MediaKeySession>
     , public ActiveDOMObject
     , private WebContentDecryptionModuleSession::Client {
     REFCOUNTED_GARBAGE_COLLECTED_EVENT_TARGET(MediaKeySession);
     DEFINE_WRAPPERTYPEINFO();
-    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(MediaKeySession);
+    USING_GARBAGE_COLLECTED_MIXIN(MediaKeySession);
 public:
     static MediaKeySession* create(ScriptState*, MediaKeys*, WebEncryptedMediaSessionType);
     ~MediaKeySession() override;
 
     String sessionId() const;
     double expiration() const { return m_expiration; }
     ScriptPromise closed(ScriptState*);
     MediaKeyStatusMap* keyStatuses();
 
     ScriptPromise generateRequest(ScriptState*, const String& initDataType, const DOMArrayPiece& initData);
@@ skipping 30 matching lines @@
     void close() override;
     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();
 
-    OwnPtrWillBeMember<GenericEventQueue> m_asyncEventQueue;
+    Member<GenericEventQueue> m_asyncEventQueue;
     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