Migrating UpdateScreen to ScreenContext

chrome/browser/chromeos/login/screens/update_screen_actor.h

-// 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.
-
-#ifndef CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_UPDATE_SCREEN_ACTOR_H_
-#define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_UPDATE_SCREEN_ACTOR_H_
-
-#include "base/time/time.h"
-
-namespace chromeos {
-
-class UpdateScreenActor {
- public:
-  // Indices for corresponding info messages during update stage.
-  enum ProgressMessage {
-    PROGRESS_MESSAGE_UPDATE_AVAILABLE = 0,
-    PROGRESS_MESSAGE_INSTALLING_UPDATE,
-    PROGRESS_MESSAGE_VERIFYING,
-    PROGRESS_MESSAGE_FINALIZING
-  };
-
-  class Delegate {
-   public:
-    virtual ~Delegate() {}
-
-    // Force cancel update.
-    virtual void CancelUpdate() = 0;
-
-    // Called prior to destroying |actor|.
-    virtual void OnActorDestroyed(UpdateScreenActor* actor) = 0;
-
-    // Called any time a new network connect request occurs.
-    virtual void OnConnectToNetworkRequested() = 0;
-  };
-
-  virtual ~UpdateScreenActor() {}
-
-  // Sets screen this actor belongs to.
-  virtual void SetDelegate(Delegate* screen) = 0;
-
-  // Shows the screen.
-  virtual void Show() = 0;
-
-  // Hides the screen.
-  virtual void Hide() = 0;
-
-  virtual void PrepareToShow() = 0;
-
-  // Shows manual reboot info message.
-  virtual void ShowManualRebootInfo() = 0;
-
-  // Sets current progress in percents.
-  virtual void SetProgress(int progress) = 0;
-
-  // Shows estimated time left message.
-  virtual void ShowEstimatedTimeLeft(bool visible) = 0;
-
-  // Sets current estimation for time left in the downloading stage.
-  virtual void SetEstimatedTimeLeft(const base::TimeDelta& time) = 0;
-
-  // Shows message under progress bar.
-  virtual void ShowProgressMessage(bool visible) = 0;
-
-  // Sets message under progress bar.
-  virtual void SetProgressMessage(ProgressMessage message) = 0;
-
-  // Shows screen curtains.
-  virtual void ShowCurtain(bool visible) = 0;
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_UPDATE_SCREEN_ACTOR_H_