Revert "Remove OwnPtr from Blink."

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

 /*
  * Copyright (C) 2013 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef PrerenderHandle_h
 #define PrerenderHandle_h
 
 #include "core/dom/ContextLifecycleObserver.h"
 #include "platform/heap/Handle.h"
 #include "platform/weborigin/KURL.h"
 #include "wtf/Noncopyable.h"
+#include "wtf/PassOwnPtr.h"
 #include "wtf/PassRefPtr.h"
 
 namespace blink {
 
 class Document;
 class Prerender;
 class PrerenderClient;
 
 class PrerenderHandle final : public GarbageCollectedFinalized<PrerenderHandle>, public ContextLifecycleObserver {
     USING_GARBAGE_COLLECTED_MIXIN(PrerenderHandle);
@@ skipping 16 matching lines @@
     PrerenderHandle(Document&, Prerender*);
 
     void detach();
 
     Member<Prerender> m_prerender;
 };
 
 } // namespace blink
 
 #endif // PrerenderHandle_h