Update to test scripts to work with both ModemManager and Cromo

test/mm-factory-reset

Index: test/mm-factory-reset
diff --git a/test/mm-factory-reset b/test/mm-factory-reset
index 2a6196dcbd0c83d3d6cfd6acc2b92cd10efb536b..bc3593ca31ac94677d01fc7377ee99ea35223ce9 100644
--- a/test/mm-factory-reset
+++ b/test/mm-factory-reset
@@ -1,5 +1,9 @@
 #!/usr/bin/python
 
+# Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
 import dbus
 import mm
 import sys
@@ -19,7 +23,6 @@ if len(sys.argv) < 3:
 else:
 	modem_pattern = sys.argv[2]
 
-manager = mm.ModemManager()
-target = mm.PickOneModem(manager, modem_pattern)
-modem = manager.Modem(target)
+manager, path = mm.PickOneModem(modem_pattern)
+modem = manager.Modem(path)
 modem.FactoryReset(spc)