bluetooth: Remove deep copying of structs by using OwnPtr.

Source/modules/bluetooth/BluetoothGATTService.cpp

 // Copyright 2015 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.
 
 #include "config.h"
 #include "modules/bluetooth/BluetoothGATTService.h"
 
 #include "public/platform/modules/bluetooth/WebBluetoothGATTRemoteServer.h"
 #include "wtf/OwnPtr.h"
 
 namespace blink {
 
-BluetoothGATTService::BluetoothGATTService(const WebBluetoothGATTService& webService)
+BluetoothGATTService::BluetoothGATTService(PassOwnPtr<WebBluetoothGATTService> webService)
     : m_webService(webService)
 {
 }
 
 BluetoothGATTService* BluetoothGATTService::take(ScriptPromiseResolver*, WebBluetoothGATTService* webServiceRawPointer)
 {
     if (!webServiceRawPointer) {
         return nullptr;
     }
-    OwnPtr<WebBluetoothGATTService> webService = adoptPtr(webServiceRawPointer);
-    return new BluetoothGATTService(*webService);
+    return new BluetoothGATTService(adoptPtr(webServiceRawPointer));
 }
 
 void BluetoothGATTService::dispose(WebBluetoothGATTService* webService)
 {
     delete webService;
 }
 
 } // namespace blink