Convert //chrome/browser/chromeos from scoped_ptr to std::unique_ptr

chrome/browser/chromeos/power/peripheral_battery_observer.h

 // Copyright (c) 2013 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 CHROME_BROWSER_CHROMEOS_POWER_PERIPHERAL_BATTERY_OBSERVER_H_
 #define CHROME_BROWSER_CHROMEOS_POWER_PERIPHERAL_BATTERY_OBSERVER_H_
 
 #include <map>
 
 #include "base/compiler_specific.h"
@@ skipping 76 matching lines @@
   // PeripheralBatteryObserver is an observer of |bluetooth_adapter_| for
   // bluetooth device change/remove events.
   scoped_refptr<device::BluetoothAdapter> bluetooth_adapter_;
 
   // Used only for helping test. Not owned and can be NULL.
   base::SimpleTestTickClock* testing_clock_;
 
   // Record the profile used when adding message center notifications.
   Profile* notification_profile_;
 
-  scoped_ptr<base::WeakPtrFactory<PeripheralBatteryObserver> > weakptr_factory_;
+  std::unique_ptr<base::WeakPtrFactory<PeripheralBatteryObserver>>
+      weakptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(PeripheralBatteryObserver);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_POWER_PERIPHERAL_BATTERY_OBSERVER_H_