Chromad: Add authentication flow

chromeos/dbus/fake_auth_policy_client.cc

 // Copyright (c) 2016 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/fake_auth_policy_client.h"
 
+#include "base/md5.h"
+
 namespace chromeos {
 
 FakeAuthPolicyClient::FakeAuthPolicyClient() {}
 
 FakeAuthPolicyClient::~FakeAuthPolicyClient() {}
 
 void FakeAuthPolicyClient::Init(dbus::Bus* bus) {}
 
 void FakeAuthPolicyClient::JoinAdDomain(const std::string& machine_name,
-                                        const std::string& user,
+                                        const std::string& user_principal_name,
                                         int password_fd,
                                         const JoinCallback& callback) {
   callback.Run(authpolicy::AD_JOIN_ERROR_NONE);
 }
 
+void FakeAuthPolicyClient::AuthenticateUser(
+    const std::string& user_principal_name,
+    int password_fd,
+    const AuthCallback& callback) {
+  callback.Run(authpolicy::AUTH_USER_ERROR_NONE,
+               base::MD5String(user_principal_name));
+}
+
 void FakeAuthPolicyClient::RefreshDevicePolicy(
     const RefreshPolicyCallback& callback) {
   callback.Run(true);
-};
+}
 
 void FakeAuthPolicyClient::RefreshUserPolicy(
     const std::string& account_id,
     const RefreshPolicyCallback& callback) {
   callback.Run(true);
-};
+}
 
 }  // namespace chromeos