This is the first pass at making GetIPConfigs asynchronous.

chromeos/dbus/shill_client_unittest_base.h

Index: chromeos/dbus/shill_client_unittest_base.h
diff --git a/chromeos/dbus/shill_client_unittest_base.h b/chromeos/dbus/shill_client_unittest_base.h
index 96f4e93b930ff7a36d7a4dade0dbb202901e552f..6d22645d28da2c1ddc5e8b8fa0616edc666081f5 100644
--- a/chromeos/dbus/shill_client_unittest_base.h
+++ b/chromeos/dbus/shill_client_unittest_base.h
@@ -148,12 +148,12 @@ class ShillClientUnittestBase : public testing::Test {
   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_;