Rewrite simple uses of base::ListValue::Append(base::Value*) on CrOS.

chromeos/network/network_state_handler_unittest.cc

 // Copyright (c) 2012 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 "chromeos/network/network_state_handler.h"
 
 #include <stddef.h>
 
 #include <map>
 #include <memory>
@@ skipping 769 matching lines @@
   EXPECT_EQ(0, test_observer_->PropertyUpdatesForService(
       kShillManagerClientStubDefaultWifi));
 
   // Change IPConfigs property.
   ShillIPConfigClient::TestInterface* ip_config_test =
       DBusThreadManager::Get()->GetShillIPConfigClient()->GetTestInterface();
   const std::string kIPConfigPath = "test_ip_config";
   base::DictionaryValue ip_config_properties;
   ip_config_test->AddIPConfig(kIPConfigPath, ip_config_properties);
   base::ListValue device_ip_configs;
-  device_ip_configs.Append(new base::StringValue(kIPConfigPath));
+  device_ip_configs.AppendString(kIPConfigPath);
   device_test_->SetDeviceProperty(
       kShillManagerClientStubWifiDevice, shill::kIPConfigsProperty,
       device_ip_configs);
   service_test_->SetServiceProperty(
       kShillManagerClientStubDefaultWifi, shill::kIPConfigProperty,
       base::StringValue(kIPConfigPath));
   UpdateManagerProperties();
   EXPECT_EQ(1, test_observer_->PropertyUpdatesForDevice(
       kShillManagerClientStubWifiDevice));
   EXPECT_EQ(1, test_observer_->PropertyUpdatesForService(
       kShillManagerClientStubDefaultWifi));
 }
 
 }  // namespace chromeos