This converts the Shill clients to allow propagation of shill errors

chromeos/dbus/dbus_method_call_status.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_DBUS_METHOD_CALL_STATUS_H_
 #define CHROMEOS_DBUS_DBUS_METHOD_CALL_STATUS_H_
 
 #include "base/callback.h"
 
 namespace dbus {
@@ skipping 21 matching lines @@
 // A callback to handle responses of methods returning a string value.
 typedef base::Callback<void(
     DBusMethodCallStatus call_status,
     const std::string& result)> StringDBusMethodCallback;
 
 // A callback to handle responses of methods returning a ObjectPath value.
 typedef base::Callback<void(
     DBusMethodCallStatus call_status,
     const dbus::ObjectPath& result)> ObjectPathDBusMethodCallback;
 
+// A callback to handle responses of methods returning a ObjectPath value that
+// doens't get call status.
+typedef base::Callback<void(const dbus::ObjectPath& result)> ObjectPathCallback;
+
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_DBUS_METHOD_CALL_STATUS_H_