Convert a few components from scoped_ptr to std::unique_ptr

components/storage_monitor/storage_monitor_mac.mm

 // 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.
 
 #include "components/storage_monitor/storage_monitor_mac.h"
 
 #include <stdint.h>
 
 #include "base/mac/foundation_util.h"
 #include "base/mac/mac_util.h"
@@ skipping 117 matching lines @@
 
 struct EjectDiskOptions {
   std::string bsd_name;
   base::Callback<void(StorageMonitor::EjectStatus)> callback;
   base::ScopedCFTypeRef<DADiskRef> disk;
 };
 
 void PostEjectCallback(DADiskRef disk,
                        DADissenterRef dissenter,
                        void* context) {
-  scoped_ptr<EjectDiskOptions> options_deleter(
+  std::unique_ptr<EjectDiskOptions> options_deleter(
       static_cast<EjectDiskOptions*>(context));
   if (dissenter) {
     options_deleter->callback.Run(StorageMonitor::EJECT_IN_USE);
     return;
   }
 
   options_deleter->callback.Run(StorageMonitor::EJECT_OK);
 }
 
 void PostUnmountCallback(DADiskRef disk,
                          DADissenterRef dissenter,
                          void* context) {
-  scoped_ptr<EjectDiskOptions> options_deleter(
+  std::unique_ptr<EjectDiskOptions> options_deleter(
       static_cast<EjectDiskOptions*>(context));
   if (dissenter) {
     options_deleter->callback.Run(StorageMonitor::EJECT_IN_USE);
     return;
   }
 
   DADiskEject(options_deleter->disk.get(), kDADiskEjectOptionDefault,
               PostEjectCallback, options_deleter.release());
 }
 
@@ skipping 222 matching lines @@
     }
   }
   return false;
 }
 
 StorageMonitor* StorageMonitor::CreateInternal() {
   return new StorageMonitorMac();
 }
 
 }  // namespace storage_monitor