Revert "Remove OwnPtr from Blink."

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

 /*
  * Copyright (C) 2006, 2007, 2008 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 25 matching lines @@
 #include "core/fileapi/FileList.h"
 #include "core/frame/LocalFrame.h"
 #include "core/html/HTMLImageElement.h"
 #include "core/html/HTMLTextFormControlElement.h"
 #include "core/layout/LayoutImage.h"
 #include "core/layout/LayoutObject.h"
 #include "platform/DragImage.h"
 #include "platform/MIMETypeRegistry.h"
 #include "platform/clipboard/ClipboardMimeTypes.h"
 #include "platform/clipboard/ClipboardUtilities.h"
-#include <memory>
 
 namespace blink {
 
 static DragOperation convertEffectAllowedToDragOperation(const String& op)
 {
     // Values specified in http://www.whatwg.org/specs/web-apps/current-work/multipage/dnd.html#dom-datatransfer-effectallowed
     if (op == "uninitialized")
         return DragOperationEvery;
     if (op == "none")
         return DragOperationNone;
@@ skipping 180 matching lines @@
 void DataTransfer::setDragImageResource(ImageResource* img, const IntPoint& loc)
 {
     setDragImage(img, 0, loc);
 }
 
 void DataTransfer::setDragImageElement(Node* node, const IntPoint& loc)
 {
     setDragImage(0, node, loc);
 }
 
-std::unique_ptr<DragImage> DataTransfer::createDragImage(IntPoint& loc, LocalFrame* frame) const
+PassOwnPtr<DragImage> DataTransfer::createDragImage(IntPoint& loc, LocalFrame* frame) const
 {
     if (m_dragImageElement) {
         loc = m_dragLoc;
 
         return frame->nodeImage(*m_dragImageElement);
     }
     if (m_dragImage) {
         loc = m_dragLoc;
         return DragImage::create(m_dragImage->getImage());
     }
@@ skipping 252 matching lines @@
 }
 
 DEFINE_TRACE(DataTransfer)
 {
     visitor->trace(m_dataObject);
     visitor->trace(m_dragImage);
     visitor->trace(m_dragImageElement);
 }
 
 } // namespace blink