Revert of Split LivenessService out from LibCrosService.

chromeos/dbus/services/liveness_service_provider.cc

 // 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.
 
 #include "chromeos/dbus/services/liveness_service_provider.h"
 
 #include "base/bind.h"
 #include "dbus/bus.h"
 #include "dbus/message.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 
 namespace chromeos {
 
-LivenessServiceProvider::LivenessServiceProvider(
-    const std::string& service_interface)
-    : service_interface_(service_interface), weak_ptr_factory_(this) {}
+LivenessServiceProvider::LivenessServiceProvider() : weak_ptr_factory_(this) {}
 
 LivenessServiceProvider::~LivenessServiceProvider() {}
 
 void LivenessServiceProvider::Start(
     scoped_refptr<dbus::ExportedObject> exported_object) {
   exported_object->ExportMethod(
-      service_interface_, kLivenessServiceCheckLivenessMethod,
+      kLibCrosServiceInterface,
+      kCheckLiveness,
       base::Bind(&LivenessServiceProvider::CheckLiveness,
                  weak_ptr_factory_.GetWeakPtr()),
       base::Bind(&LivenessServiceProvider::OnExported,
                  weak_ptr_factory_.GetWeakPtr()));
 }
 
 void LivenessServiceProvider::OnExported(const std::string& interface_name,
                                          const std::string& method_name,
                                          bool success) {
   if (!success) {
     LOG(ERROR) << "Failed to export " << interface_name << "."
                << method_name;
   }
 }
 
 void LivenessServiceProvider::CheckLiveness(
     dbus::MethodCall* method_call,
     dbus::ExportedObject::ResponseSender response_sender) {
   response_sender.Run(dbus::Response::FromMethodCall(method_call));
 }
 
 }  // namespace chromeos