CallbackPromiseAdapter types should be more compatible with WebCallbacks (3/3).

Source/modules/bluetooth/BluetoothError.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef BluetoothError_h
 #define BluetoothError_h
 
 #include "platform/heap/Handle.h"
 #include "public/platform/modules/bluetooth/WebBluetoothError.h"
-#include "wtf/OwnPtr.h"
-#include "wtf/PassOwnPtr.h"
 
 namespace blink {
 
 class DOMException;
 class ScriptPromiseResolver;
 
 // BluetoothError is used with CallbackPromiseAdapter to receive
 // WebBluetoothError responses. See CallbackPromiseAdapter class comments.
 class BluetoothError {
     WTF_MAKE_NONCOPYABLE(BluetoothError);
 public:
     // Interface required by CallbackPromiseAdapter:
-    using WebType = OwnPtr<WebBluetoothError>;
-    static DOMException* take(ScriptPromiseResolver*, PassOwnPtr<WebBluetoothError>);
+    using WebType = const WebBluetoothError&;
+    static DOMException* take(ScriptPromiseResolver*, const WebBluetoothError&);
 
 private:
     BluetoothError() = delete;
 };
 
 } // namespace blink
 
 #endif // BluetoothError_h