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

chrome/browser/chromeos/login/user_selection_screen_proxy.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_USER_SELECTION_SCREEN_PROXY_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_USER_SELECTION_SCREEN_PROXY_H_
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/chromeos/login/ui/views/user_board_view.h"
@@ skipping 13 matching lines @@
   void SetPublicSessionLocales(const AccountId& account_id,
                                std::unique_ptr<base::ListValue> locales,
                                const std::string& default_locale,
                                bool multiple_recommended_locales) override{};
   void ShowBannerMessage(const base::string16& message) override{};
   void ShowUserPodCustomIcon(
       const AccountId& account_id,
       const proximity_auth::ScreenlockBridge::UserPodCustomIconOptions& icon)
       override;
   void HideUserPodCustomIcon(const AccountId& account_id) override;
-  void SetAuthType(
-      const AccountId& account_id,
-      proximity_auth::ScreenlockBridge::LockHandler::AuthType auth_type,
-      const base::string16& initial_value) override;
+  void SetAuthType(const AccountId& account_id,
+                   proximity_auth::mojom::AuthType auth_type,
+                   const base::string16& initial_value) override;
   void Bind(chromeos::UserSelectionScreen* screen) override{};
   void Unbind() override{};
   base::WeakPtr<UserBoardView> GetWeakPtr() override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(UserSelectionScreenProxy);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_USER_SELECTION_SCREEN_PROXY_H_