base::ListValue::Append cleanup: pass unique_ptr instead of the released pointer.

extensions/browser/api/system_info/system_info_api.cc

 // Copyright 2013 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 "extensions/browser/api/system_info/system_info_api.h"
 
 #include <stdint.h>
 
 #include <memory>
 #include <set>
@@ skipping 149 matching lines @@
       has_storage_monitor_observer_ = false;
     }
   }
 }
 
 void SystemInfoEventRouter::OnRemovableStorageAttached(
     const storage_monitor::StorageInfo& info) {
   StorageUnitInfo unit;
   systeminfo::BuildStorageUnitInfo(info, &unit);
   std::unique_ptr<base::ListValue> args(new base::ListValue);
-  args->Append(unit.ToValue().release());
+  args->Append(unit.ToValue());
   DispatchEvent(events::SYSTEM_STORAGE_ON_ATTACHED,
                 system_storage::OnAttached::kEventName, std::move(args));
 }
 
 void SystemInfoEventRouter::OnRemovableStorageDetached(
     const storage_monitor::StorageInfo& info) {
   std::unique_ptr<base::ListValue> args(new base::ListValue);
   std::string transient_id =
       StorageMonitor::GetInstance()->GetTransientIdForDeviceId(
           info.device_id());
@@ skipping 79 matching lines @@
 void SystemInfoAPI::OnListenerRemoved(const EventListenerInfo& details) {
   if (IsSystemStorageEvent(details.event_name)) {
     StorageMonitor::GetInstance()->EnsureInitialized(
         base::Bind(&RemoveEventListener, details.event_name));
   } else {
     RemoveEventListener(details.event_name);
   }
 }
 
 }  // namespace extensions