Convert device to std::unique_ptr

device/udev_linux/udev_linux.h

 // Copyright (c) 2012 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.
 
 // UdevLinux listens for device change notifications from udev and runs
 // callbacks when notifications occur.
 //
 // UdevLinux must be created on a MessageLoop of TYPE_IO.
 // UdevLinux is not thread-safe.
 //
@@ skipping 10 matching lines @@
 //                               base::Bind(&Foo::Notify, this)));
 //   }
 //
 //   // Called when a "block" device attaches/detaches.
 //   // To hold on to |device|, call udev_device_ref(device).
 //   void Notify(udev_device* device) {
 //     // Do something with |device|.
 //   }
 //
 //  private:
-//   scoped_ptr<UdevLinux> udev_;
+//   std::unique_ptr<UdevLinux> udev_;
 //
 //   DISALLOW_COPY_AND_ASSIGN(Foo);
 // };
 
 #ifndef DEVICE_UDEV_LINUX_UDEV_LINUX_H_
 #define DEVICE_UDEV_LINUX_UDEV_LINUX_H_
 
 #include <vector>
 
 #include "base/callback.h"
@@ skipping 44 matching lines @@
   int monitor_fd_;
   base::MessagePumpLibevent::FileDescriptorWatcher monitor_watcher_;
   const UdevNotificationCallback callback_;
 
   DISALLOW_COPY_AND_ASSIGN(UdevLinux);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_UDEV_LINUX_UDEV_LINUX_H_