Convert a few components from scoped_ptr to std::unique_ptr

components/storage_monitor/storage_monitor_mac.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.
 
 #ifndef COMPONENTS_STORAGE_MONITOR_STORAGE_MONITOR_MAC_H_
 #define COMPONENTS_STORAGE_MONITOR_STORAGE_MONITOR_MAC_H_
 
 #include <DiskArbitration/DiskArbitration.h>
+
 #include <map>
+#include <memory>
 
 #include "base/mac/scoped_cftyperef.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "components/storage_monitor/storage_monitor.h"
 
 namespace storage_monitor {
 
 class ImageCaptureDeviceManager;
 
@@ skipping 23 matching lines @@
                              StorageInfo* device_info) const override;
 
   void EjectDevice(const std::string& device_id,
                    base::Callback<void(EjectStatus)> callback) override;
 
  private:
   static void DiskAppearedCallback(DADiskRef disk, void* context);
   static void DiskDisappearedCallback(DADiskRef disk, void* context);
   static void DiskDescriptionChangedCallback(DADiskRef disk,
                                              CFArrayRef keys,
-                                             void *context);
+                                             void* context);
   void GetDiskInfoAndUpdate(DADiskRef disk, UpdateType update_type);
 
   bool ShouldPostNotificationForDisk(const StorageInfo& info) const;
   bool FindDiskWithMountPoint(const base::FilePath& mount_point,
                               StorageInfo* info) const;
 
   base::ScopedCFTypeRef<DASessionRef> session_;
   // Maps disk bsd names to disk info objects. This map tracks all mountable
   // devices on the system, though only notifications for removable devices are
   // posted.
   std::map<std::string, StorageInfo> disk_info_map_;
 
   int pending_disk_updates_;
 
-  scoped_ptr<ImageCaptureDeviceManager> image_capture_device_manager_;
+  std::unique_ptr<ImageCaptureDeviceManager> image_capture_device_manager_;
 
   DISALLOW_COPY_AND_ASSIGN(StorageMonitorMac);
 };
 
 }  // namespace storage_monitor
 
 #endif  // COMPONENTS_STORAGE_MONITOR_STORAGE_MONITOR_MAC_H_