Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/modules/webmidi/MIDIAccess.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 22 matching lines @@
 
 #include "bindings/core/v8/ActiveScriptWrappable.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "core/dom/ActiveDOMObject.h"
 #include "modules/EventTargetModules.h"
 #include "modules/webmidi/MIDIAccessInitializer.h"
 #include "modules/webmidi/MIDIAccessor.h"
 #include "modules/webmidi/MIDIAccessorClient.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Vector.h"
-#include <memory>
 
 namespace blink {
 
 class ExecutionContext;
 class MIDIInput;
 class MIDIInputMap;
 class MIDIOutput;
 class MIDIOutputMap;
 
 class MIDIAccess final : public EventTargetWithInlineData, public ActiveScriptWrappable, public ActiveDOMObject, public MIDIAccessorClient {
     DEFINE_WRAPPERTYPEINFO();
     USING_GARBAGE_COLLECTED_MIXIN(MIDIAccess);
     USING_PRE_FINALIZER(MIDIAccess, dispose);
 public:
-    static MIDIAccess* create(std::unique_ptr<MIDIAccessor> accessor, bool sysexEnabled, const Vector<MIDIAccessInitializer::PortDescriptor>& ports, ExecutionContext* executionContext)
+    static MIDIAccess* create(PassOwnPtr<MIDIAccessor> accessor, bool sysexEnabled, const Vector<MIDIAccessInitializer::PortDescriptor>& ports, ExecutionContext* executionContext)
     {
         MIDIAccess* access = new MIDIAccess(std::move(accessor), sysexEnabled, ports, executionContext);
         access->suspendIfNeeded();
         return access;
     }
     ~MIDIAccess() override;
 
     MIDIInputMap* inputs() const;
     MIDIOutputMap* outputs() const;
 
@@ skipping 27 matching lines @@
 
     // |timeStampInMilliseconds| is in the same time coordinate system as performance.now().
     void sendMIDIData(unsigned portIndex, const unsigned char* data, size_t length, double timeStampInMilliseconds);
 
     // Eager finalization needed to promptly release m_accessor. Otherwise
     // its client back reference could end up being unsafely used during
     // the lazy sweeping phase.
     DECLARE_VIRTUAL_TRACE();
 
 private:
-    MIDIAccess(std::unique_ptr<MIDIAccessor>, bool sysexEnabled, const Vector<MIDIAccessInitializer::PortDescriptor>&, ExecutionContext*);
+    MIDIAccess(PassOwnPtr<MIDIAccessor>, bool sysexEnabled, const Vector<MIDIAccessInitializer::PortDescriptor>&, ExecutionContext*);
     void dispose();
 
-    std::unique_ptr<MIDIAccessor> m_accessor;
+    OwnPtr<MIDIAccessor> m_accessor;
     bool m_sysexEnabled;
     bool m_hasPendingActivity;
     HeapVector<Member<MIDIInput>> m_inputs;
     HeapVector<Member<MIDIOutput>> m_outputs;
 };
 
 } // namespace blink
 
 #endif // MIDIAccess_h