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

extensions/browser/api/hid/hid_device_manager.cc

 // 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 "extensions/browser/api/hid/hid_device_manager.h"
 
 #include <stdint.h>
 
 #include <limits>
 #include <utility>
@@ skipping 128 matching lines @@
     const std::vector<scoped_refptr<HidDeviceInfo>>& devices) {
   DCHECK(thread_checker_.CalledOnValidThread());
   std::unique_ptr<base::ListValue> device_list(new base::ListValue());
   for (const auto& device : devices) {
     const auto device_entry = resource_ids_.find(device->device_id());
     DCHECK(device_entry != resource_ids_.end());
 
     hid::HidDeviceInfo device_info;
     device_info.device_id = device_entry->second;
     PopulateHidDeviceInfo(&device_info, device);
-    device_list->Append(device_info.ToValue().release());
+    device_list->Append(device_info.ToValue());
   }
   return device_list;
 }
 
 scoped_refptr<HidDeviceInfo> HidDeviceManager::GetDeviceInfo(int resource_id) {
   DCHECK(thread_checker_.CalledOnValidThread());
   HidService* hid_service = device::DeviceClient::Get()->GetHidService();
   DCHECK(hid_service);
 
   ResourceIdToDeviceIdMap::const_iterator device_iter =
@@ skipping 175 matching lines @@
     std::unique_ptr<base::ListValue> event_args,
     scoped_refptr<HidDeviceInfo> device_info) {
   std::unique_ptr<Event> event(
       new Event(histogram_value, event_name, std::move(event_args)));
   event->will_dispatch_callback = base::Bind(
       &WillDispatchDeviceEvent, weak_factory_.GetWeakPtr(), device_info);
   event_router_->BroadcastEvent(std::move(event));
 }
 
 }  // namespace extensions