This is the first pass at making GetIPConfigs asynchronous.

chromeos/network/network_sms_handler.h

 // 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.
 
 #ifndef CHROMEOS_NETWORK_NETWORK_SMS_HANDLER_H_
 #define CHROMEOS_NETWORK_NETWORK_SMS_HANDLER_H_
 
 #include <string>
 
 #include "base/memory/scoped_vector.h"
@@ skipping 38 matching lines @@
  private:
   class NetworkSmsDeviceHandler;
   class ModemManagerNetworkSmsDeviceHandler;
   class ModemManager1NetworkSmsDeviceHandler;
 
   // Called from NetworkSmsDeviceHandler when a message is received.
   void NotifyMessageReceived(const base::DictionaryValue& message);
 
   // Callback to handle the manager properties with the list of devices.
   void ManagerPropertiesCallback(DBusMethodCallStatus call_status,
-                                 const base::DictionaryValue& properties);
+                                 scoped_ptr<base::DictionaryValue> properties);
 
   // Callback to handle the device properties for |device_path|.
   // A NetworkSmsDeviceHandler will be instantiated for each cellular device.
   void DevicePropertiesCallback(const std::string& device_path,
                                 DBusMethodCallStatus call_status,
-                                const base::DictionaryValue& properties);
+                                scoped_ptr<base::DictionaryValue> properties);
 
   ObserverList<Observer> observers_;
   ScopedVector<NetworkSmsDeviceHandler> device_handlers_;
   base::WeakPtrFactory<NetworkSmsHandler> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkSmsHandler);
 };
 
 }  // namespace
 
 #endif  // CHROMEOS_NETWORK_NETWORK_SMS_HANDLER_H_