Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/clipboard/DataTransfer.h

 /*
  * Copyright (C) 2001 Peter Kelly (pmk@post.com)
  * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2008 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 14 matching lines @@
 #define DataTransfer_h
 
 #include "bindings/core/v8/ScriptWrappable.h"
 #include "core/CoreExport.h"
 #include "core/clipboard/DataTransferAccessPolicy.h"
 #include "core/fetch/ImageResource.h"
 #include "core/page/DragActions.h"
 #include "platform/geometry/IntPoint.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Forward.h"
-#include <memory>
 
 namespace blink {
 
 class DataObject;
 class DataTransferItemList;
 class DragImage;
 class Element;
 class FileList;
 class FrameSelection;
 class LocalFrame;
@@ skipping 31 matching lines @@
     // extensions beyond IE's API
     Vector<String> types() const;
     FileList* files() const;
 
     IntPoint dragLocation() const { return m_dragLoc; }
     void setDragImage(Element*, int x, int y);
     void clearDragImage();
     void setDragImageResource(ImageResource*, const IntPoint&);
     void setDragImageElement(Node*, const IntPoint&);
 
-    std::unique_ptr<DragImage> createDragImage(IntPoint& dragLocation, LocalFrame*) const;
+    PassOwnPtr<DragImage> createDragImage(IntPoint& dragLocation, LocalFrame*) const;
     void declareAndWriteDragImage(Element*, const KURL&, const String& title);
     void writeURL(Node*, const KURL&, const String&);
     void writeSelection(const FrameSelection&);
 
     void setAccessPolicy(DataTransferAccessPolicy);
     bool canReadTypes() const;
     bool canReadData() const;
     bool canWriteData() const;
     // Note that the spec doesn't actually allow drag image modification outside the dragstart
     // event. This capability is maintained for backwards compatiblity for ports that have
@@ skipping 33 matching lines @@
     Member<ImageResource> m_dragImage;
     Member<Node> m_dragImageElement;
 };
 
 DragOperation convertDropZoneOperationToDragOperation(const String& dragOperation);
 String convertDragOperationToDropZoneOperation(DragOperation);
 
 } // namespace blink
 
 #endif // DataTransfer_h