Migrating UpdateScreen to ScreenContext

chrome/browser/ui/webui/chromeos/login/update_screen_handler.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_UI_WEBUI_CHROMEOS_LOGIN_UPDATE_SCREEN_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_UPDATE_SCREEN_HANDLER_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
-#include "chrome/browser/chromeos/login/screens/update_screen_actor.h"
+#include "chrome/browser/chromeos/login/screens/update_view.h"
 #include "chrome/browser/ui/webui/chromeos/login/base_screen_handler.h"
 #include "chrome/browser/ui/webui/chromeos/login/network_dropdown_handler.h"
 
 namespace chromeos {
 
-class UpdateScreenHandler : public UpdateScreenActor,
+class UpdateScreenHandler : public UpdateView,
                             public BaseScreenHandler,
                             public NetworkDropdownHandler::Observer {
  public:
   UpdateScreenHandler();
   ~UpdateScreenHandler() override;
 
-  // BaseScreenHandler implementation:
+  // UpdateView:
+  void PrepareToShow() override;
+  void Show() override;
+  void Hide() override;
+  void Bind(UpdateModel& model) override;
+  void Unbind() override;
+
+  // BaseScreenHandler:
   void DeclareLocalizedValues(LocalizedValuesBuilder* builder) override;
   void Initialize() override;
 
-  // UpdateScreenActor implementation:
-  void SetDelegate(UpdateScreenActor::Delegate* screen) override;
-  void Show() override;
-  void Hide() override;
-  void PrepareToShow() override;
-  void ShowManualRebootInfo() override;
-  void SetProgress(int progress) override;
-  void ShowEstimatedTimeLeft(bool visible) override;
-  void SetEstimatedTimeLeft(const base::TimeDelta& time) override;
-  void ShowProgressMessage(bool visible) override;
-  void SetProgressMessage(ProgressMessage message) override;
-  void ShowCurtain(bool visible) override;
-
-  // WebUIMessageHandler implementation:
-  void RegisterMessages() override;
-
  private:
   // NetworkDropdownHandler::Observer implementation:
   void OnConnectToNetworkRequested() override;
 
-#if !defined(OFFICIAL_BUILD)
-  // Called when user presses Escape to cancel update.
-  void HandleUpdateCancel();
-#endif
-
-  UpdateScreenActor::Delegate* screen_;
+  UpdateModel* model_;
 
   // Keeps whether screen should be shown right after initialization.
   bool show_on_init_;
 
   DISALLOW_COPY_AND_ASSIGN(UpdateScreenHandler);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_UPDATE_SCREEN_HANDLER_H_