Create Mojo Struct for user information used in login/lock screen.

chrome/browser/chromeos/login/user_selection_screen_proxy.cc

 // Copyright 2017 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 "chrome/browser/chromeos/login/user_selection_screen_proxy.h"
 
 #include <utility>
 
 #include "chrome/browser/ui/ash/lock_screen_client.h"
 
@@ skipping 44 matching lines @@
   LockScreenClient::Get()->ShowUserPodCustomIcon(account_id, std::move(icon));
 }
 
 void UserSelectionScreenProxy::HideUserPodCustomIcon(
     const AccountId& account_id) {
   LockScreenClient::Get()->HideUserPodCustomIcon(account_id);
 }
 
 void UserSelectionScreenProxy::SetAuthType(
     const AccountId& account_id,
-    proximity_auth::ScreenlockBridge::LockHandler::AuthType auth_type,
+    proximity_auth::mojom::AuthType auth_type,
     const base::string16& initial_value) {
-  LockScreenClient::Get()->SetAuthType(
-      account_id, static_cast<ash::mojom::AuthType>(auth_type), initial_value);
+  LockScreenClient::Get()->SetAuthType(account_id, auth_type, initial_value);
 }
 
 base::WeakPtr<chromeos::UserBoardView> UserSelectionScreenProxy::GetWeakPtr() {
   return base::WeakPtr<chromeos::UserBoardView>();
 }
 
 }  // namespace chromeos