Convert device to std::unique_ptr

device/battery/battery_status_manager.h

Index: device/battery/battery_status_manager.h
diff --git a/device/battery/battery_status_manager.h b/device/battery/battery_status_manager.h
index 5d8d8b81f428fbbf0fbbc2723b7fbae63d2f2cd2..b80579bc6a3028c5bffafc1c6d75b7d19ae4f651 100644
--- a/device/battery/battery_status_manager.h
+++ b/device/battery/battery_status_manager.h
@@ -5,7 +5,8 @@
 #ifndef DEVICE_BATTERY_BATTERY_STATUS_MANAGER_H_
 #define DEVICE_BATTERY_BATTERY_STATUS_MANAGER_H_
 
-#include "base/memory/scoped_ptr.h"
+#include <memory>
+
 #include "device/battery/battery_status_service.h"
 
 namespace device {
@@ -15,7 +16,7 @@ class BatteryStatusManager {
  public:
   // Creates a BatteryStatusManager object. |callback| should be called when the
   // battery status changes.
-  static scoped_ptr<BatteryStatusManager> Create(
+  static std::unique_ptr<BatteryStatusManager> Create(
       const BatteryStatusService::BatteryUpdateCallback& callback);
 
   virtual ~BatteryStatusManager() {}