Remove OwnPtr from Blink.

third_party/WebKit/Source/modules/webmidi/MIDIClient.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 15 matching lines @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef MIDIClient_h
 #define MIDIClient_h
 
 #include "modules/ModulesExport.h"
 #include "platform/heap/Handle.h"
+#include <memory>
 
 namespace blink {
 
 class LocalFrame;
 class MIDIAccessInitializer;
 class MIDIOptions;
 
 class MODULES_EXPORT MIDIClient {
 public:
     virtual void requestPermission(MIDIAccessInitializer*, const MIDIOptions&) = 0;
     virtual void cancelPermissionRequest(MIDIAccessInitializer*) = 0;
 
     virtual ~MIDIClient() { }
 };
 
-MODULES_EXPORT void provideMIDITo(LocalFrame&, PassOwnPtr<MIDIClient>);
+MODULES_EXPORT void provideMIDITo(LocalFrame&, std::unique_ptr<MIDIClient>);
 
 } // namespace blink
 
 #endif // MIDIClient_h