This is the first pass at making GetIPConfigs asynchronous.

chromeos/dbus/shill_client_unittest_base.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_DBUS_SHILL_CLIENT_UNITTEST_BASE_H_
 #define CHROMEOS_DBUS_SHILL_CLIENT_UNITTEST_BASE_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
@@ skipping 130 matching lines @@
 
   // Checks the result and expects the call status to be SUCCESS.
   static void ExpectObjectPathResultWithoutStatus(
       const dbus::ObjectPath& expected_result,
       const dbus::ObjectPath& result);
 
   // Checks the result and expects the call status to be SUCCESS.
   static void ExpectDictionaryValueResult(
       const base::DictionaryValue* expected_result,
       DBusMethodCallStatus call_status,
-      const base::DictionaryValue& result);
+      scoped_ptr<base::DictionaryValue> result);
 
   // Expects the |expected_result| to match the |result|.
   static void ExpectDictionaryValueResultWithoutStatus(
       const base::DictionaryValue* expected_result,
-      const base::DictionaryValue& result);
+      scoped_ptr<base::DictionaryValue> result);
 
   // A message loop to emulate asynchronous behavior.
   MessageLoop message_loop_;
   // The mock bus.
   scoped_refptr<dbus::MockBus> mock_bus_;
 
  private:
   // Checks the requested interface name and signal name.
   // Used to implement the mock proxy.
   void OnConnectToSignal(
@@ skipping 34 matching lines @@
   std::string expected_method_name_;
   // The response which the mock object proxy returns.
   dbus::Response* response_;
   // A callback to intercept and check the method call arguments.
   ArgumentCheckCallback argument_checker_;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_SHILL_CLIENT_UNITTEST_BASE_H_