dbus: add ObjectPath type

chrome/browser/chromeos/dbus/update_engine_client.cc

Index: chrome/browser/chromeos/dbus/update_engine_client.cc
diff --git a/chrome/browser/chromeos/dbus/update_engine_client.cc b/chrome/browser/chromeos/dbus/update_engine_client.cc
index ed5cecb7df0762377d4fe3b2e9cf76bf275d9d1d..93523758affbf24071c3af1942f70273b80e7af5 100644
--- a/chrome/browser/chromeos/dbus/update_engine_client.cc
+++ b/chrome/browser/chromeos/dbus/update_engine_client.cc
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -10,6 +10,7 @@
 #include "chrome/browser/chromeos/system/runtime_environment.h"
 #include "dbus/bus.h"
 #include "dbus/message.h"
+#include "dbus/object_path.h"
 #include "dbus/object_proxy.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 
@@ -54,7 +55,7 @@ class UpdateEngineClientImpl : public UpdateEngineClient {
         last_status_() {
     update_engine_proxy_ = bus->GetObjectProxy(
         update_engine::kUpdateEngineServiceName,
-        update_engine::kUpdateEngineServicePath);
+        dbus::ObjectPath(update_engine::kUpdateEngineServicePath));
 
     // Monitor the D-Bus signal for brightness changes. Only the power
     // manager knows the actual brightness level. We don't cache the