Remove OwnPtr from Blink.

third_party/WebKit/Source/core/loader/ImageLoader.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2009 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 13 matching lines @@
 #define ImageLoader_h
 
 #include "core/CoreExport.h"
 #include "core/fetch/ImageResource.h"
 #include "core/fetch/ImageResourceObserver.h"
 #include "core/fetch/ResourceClient.h"
 #include "platform/heap/Handle.h"
 #include "wtf/HashSet.h"
 #include "wtf/WeakPtr.h"
 #include "wtf/text/AtomicString.h"
+#include <memory>
 
 namespace blink {
 
 class IncrementLoadEventDelayCount;
 class FetchRequest;
 class Document;
 class Element;
 class ImageLoader;
 class LayoutImageResource;
 
@@ skipping 107 matching lines @@
     Member<Element> m_element;
     Member<ImageResource> m_image;
     // FIXME: Oilpan: We might be able to remove this Persistent hack when
     // ImageResourceClient is traceable.
     GC_PLUGIN_IGNORE("http://crbug.com/383741")
     Persistent<Element> m_keepAlive;
 
     Timer<ImageLoader> m_derefElementTimer;
     AtomicString m_failedLoadURL;
     WeakPtr<Task> m_pendingTask; // owned by Microtask
-    OwnPtr<IncrementLoadEventDelayCount> m_loadDelayCounter;
+    std::unique_ptr<IncrementLoadEventDelayCount> m_loadDelayCounter;
     bool m_hasPendingLoadEvent : 1;
     bool m_hasPendingErrorEvent : 1;
     bool m_imageComplete : 1;
     bool m_loadingImageDocument : 1;
     bool m_elementIsProtected : 1;
     bool m_suppressErrorEvents : 1;
 };
 
 } // namespace blink
 
 #endif