This is the first pass at making GetIPConfigs asynchronous.

chromeos/dbus/shill_client_unittest_base.cc

Index: chromeos/dbus/shill_client_unittest_base.cc
diff --git a/chromeos/dbus/shill_client_unittest_base.cc b/chromeos/dbus/shill_client_unittest_base.cc
index 1907cb09bb63888025f657caa8e4ca672a21610e..514153795523f669b6383f0e9344c0a31780068a 100644
--- a/chromeos/dbus/shill_client_unittest_base.cc
+++ b/chromeos/dbus/shill_client_unittest_base.cc
@@ -235,11 +235,11 @@ void ShillClientUnittestBase::ExpectObjectPathResultWithoutStatus(
 // static
 void ShillClientUnittestBase::ExpectDictionaryValueResultWithoutStatus(
     const base::DictionaryValue* expected_result,
-    const base::DictionaryValue& result) {
+    scoped_ptr<base::DictionaryValue> result) {
   std::string expected_result_string;
   base::JSONWriter::Write(expected_result, &expected_result_string);
   std::string result_string;
-  base::JSONWriter::Write(&result, &result_string);
+  base::JSONWriter::Write(result.get(), &result_string);
   EXPECT_EQ(expected_result_string, result_string);
 }
 
@@ -247,9 +247,9 @@ void ShillClientUnittestBase::ExpectDictionaryValueResultWithoutStatus(
 void ShillClientUnittestBase::ExpectDictionaryValueResult(
     const base::DictionaryValue* expected_result,
     DBusMethodCallStatus call_status,
-    const base::DictionaryValue& result) {
+    scoped_ptr<base::DictionaryValue> result) {
   EXPECT_EQ(DBUS_METHOD_CALL_SUCCESS, call_status);
-  ExpectDictionaryValueResultWithoutStatus(expected_result, result);
+  ExpectDictionaryValueResultWithoutStatus(expected_result, result.Pass());
 }
 
 void ShillClientUnittestBase::OnConnectToSignal(