arc: Add splash screen for ARC++ Kiosk startup

chrome/browser/chromeos/login/arc_kiosk_controller.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_ARC_KIOSK_CONTROLLER_H_
+#define CHROME_BROWSER_CHROMEOS_LOGIN_ARC_KIOSK_CONTROLLER_H_
+
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "chrome/browser/chromeos/app_mode/arc/arc_kiosk_app_service.h"
+#include "chrome/browser/chromeos/login/screens/arc_kiosk_splash_screen_actor.h"
+#include "chrome/browser/chromeos/login/session/user_session_manager.h"
+#include "chromeos/login/auth/login_performer.h"
+
+class AccountId;
+class Profile;
+
+namespace base {
+class OneShotTimer;
+}  // namespace base

[achuithb, 2017/02/03 00:35:00]

nit: drop comment

[Sergey Poromov, 2017/02/03 15:15:36]

Done.

+
+namespace chromeos {
+
+class LoginDisplayHost;
+class OobeUI;
+class UserContext;
+
+// Controller for the ARC kiosk launch process, responsible for
+// coordinating loading the ARC kiosk profile, and
+// updating the splash screen UI.
+class ArcKioskController : public LoginPerformer::Delegate,
+                           public UserSessionManagerDelegate,
+                           public ArcKioskAppService::Delegate,
+                           public ArcKioskSplashScreenActor::Delegate {
+ public:
+  ArcKioskController(LoginDisplayHost* host, OobeUI* oobe_ui);
+
+  ~ArcKioskController() override;
+
+  // Starts ARC kiosk splash screen.
+  void StartArcKiosk(const AccountId& account_id);
+
+ private:
+  void CleanUp();
+  void CloseSplashScreen();
+
+  // LoginPerformer::Delegate implementation:
+  void OnAuthFailure(const AuthFailure& error) override;
+  void OnAuthSuccess(const UserContext& user_context) override;
+  void WhiteListCheckFailed(const std::string& email) override;
+  void PolicyLoadFailed() override;
+  void SetAuthFlowOffline(bool offline) override;
+
+  // UserSessionManagerDelegate implementation:
+  void OnProfilePrepared(Profile* profile, bool browser_launched) override;
+
+  // ArcKioskAppService::Delegate implementation:
+  void OnAppStarted() override;
+  void OnAppWindowLaunched() override;
+
+  // ArcKioskSplashScreenActor::Delegate implementation:
+  void OnCancelArcKioskLaunch() override;
+
+  // LoginDisplayHost owns itself.
+  LoginDisplayHost* const host_;
+  // Owned by OobeUI.
+  ArcKioskSplashScreenActor* const arc_kiosk_splash_screen_actor_;
+  // Not owning here.
+  Profile* profile_ = nullptr;
+
+  // Used to execute login operations.
+  std::unique_ptr<LoginPerformer> login_performer_ = nullptr;
+
+  // A timer to ensure the app splash is shown for a minimum amount of time.
+  base::OneShotTimer splash_wait_timer_;
+  bool launched_ = false;
+  base::WeakPtrFactory<ArcKioskController> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(ArcKioskController);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_ARC_KIOSK_CONTROLLER_H_