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

chrome/browser/extensions/api/bluetooth_low_energy/bluetooth_low_energy_event_router.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 "chrome/browser/extensions/api/bluetooth_low_energy/bluetooth_low_energy_event_router.h"
 
 #include <algorithm>
 #include <iterator>
 #include <utility>
 
@@ skipping 1046 matching lines @@
          chrc_id_to_service_id_.end());
   DCHECK(chrc_id_to_service_id_[characteristic->GetIdentifier()] ==
          service->GetIdentifier());
 
   // Send the event; manually construct the arguments, instead of using
   // apibtle::OnCharacteristicValueChanged::Create, as it doesn't convert
   // lists of enums correctly.
   apibtle::Characteristic api_characteristic;
   PopulateCharacteristic(characteristic, &api_characteristic);
   std::unique_ptr<base::ListValue> args(new base::ListValue());
-  args->Append(apibtle::CharacteristicToValue(&api_characteristic).release());
+  args->Append(apibtle::CharacteristicToValue(&api_characteristic));
 
   DispatchEventToExtensionsWithPermission(
       events::BLUETOOTH_LOW_ENERGY_ON_CHARACTERISTIC_VALUE_CHANGED,
       apibtle::OnCharacteristicValueChanged::kEventName, service->GetUUID(),
       characteristic->GetIdentifier(), std::move(args));
 }
 
 void BluetoothLowEnergyEventRouter::GattDescriptorValueChanged(
     BluetoothAdapter* adapter,
     BluetoothRemoteGattDescriptor* descriptor,
@@ skipping 10 matching lines @@
          desc_id_to_chrc_id_.end());
   DCHECK(characteristic->GetIdentifier() ==
          desc_id_to_chrc_id_[descriptor->GetIdentifier()]);
 
   // Send the event; manually construct the arguments, instead of using
   // apibtle::OnDescriptorValueChanged::Create, as it doesn't convert
   // lists of enums correctly.
   apibtle::Descriptor api_descriptor;
   PopulateDescriptor(descriptor, &api_descriptor);
   std::unique_ptr<base::ListValue> args(new base::ListValue());
-  args->Append(apibtle::DescriptorToValue(&api_descriptor).release());
+  args->Append(apibtle::DescriptorToValue(&api_descriptor));
 
   DispatchEventToExtensionsWithPermission(
       events::BLUETOOTH_LOW_ENERGY_ON_DESCRIPTOR_VALUE_CHANGED,
       apibtle::OnDescriptorValueChanged::kEventName,
       characteristic->GetService()->GetUUID(), "" /* characteristic_id */,
       std::move(args));
 }
 
 void BluetoothLowEnergyEventRouter::OnCharacteristicReadRequest(
     const device::BluetoothDevice* device,
@@ skipping 811 matching lines @@
     requests_[extension_id] = std::move(new_request_id_map);
   } else {
     request_id_map = iter->second.get();
   }
 
   (*request_id_map)[++last_callback_request_id_] = std::move(request);
   return last_callback_request_id_;
 }
 
 }  // namespace extensions