Convert a few components from scoped_ptr to std::unique_ptr

components/storage_monitor/test_volume_mount_watcher_win.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.
 //
 // This file contains a subclass of VolumeMountWatcherWin to expose some
 // functionality for testing.
 
 #ifndef COMPONENTS_STORAGE_MONITOR_TEST_VOLUME_MOUNT_WATCHER_WIN_H_
 #define COMPONENTS_STORAGE_MONITOR_TEST_VOLUME_MOUNT_WATCHER_WIN_H_
 
 #include <stdint.h>
 
+#include <memory>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "base/strings/string16.h"
 #include "base/synchronization/waitable_event.h"
 #include "components/storage_monitor/volume_mount_watcher_win.h"
 
 namespace base {
 class FilePath;
@@ skipping 26 matching lines @@
 
   void ReleaseDeviceCheck();
 
   // VolumeMountWatcherWin:
   void DeviceCheckComplete(const base::FilePath& device_path) override;
   GetAttachedDevicesCallbackType GetAttachedDevicesCallback() const override;
   GetDeviceDetailsCallbackType GetDeviceDetailsCallback() const override;
 
  private:
   std::vector<base::FilePath> devices_checked_;
-  scoped_ptr<base::WaitableEvent> device_check_complete_event_;
+  std::unique_ptr<base::WaitableEvent> device_check_complete_event_;
   bool attached_devices_fake_;
 
   DISALLOW_COPY_AND_ASSIGN(TestVolumeMountWatcherWin);
 };
 
 }  // namespace storage_monitor
 
 #endif  // COMPONENTS_STORAGE_MONITOR_TEST_VOLUME_MOUNT_WATCHER_WIN_H_