[cros] update screen re-factoring pt.1

chrome/browser/chromeos/login/views_update_screen_actor.h

+// Copyright (c) 2011 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_VIEWS_UPDATE_SCREEN_ACTOR_H_
+#define CHROME_BROWSER_CHROMEOS_LOGIN_VIEWS_UPDATE_SCREEN_ACTOR_H_
+#pragma once
+
+#include "chrome/browser/chromeos/login/update_screen_actor.h"
+#include "chrome/browser/chromeos/login/update_view.h"
+#include "chrome/browser/chromeos/login/view_screen.h"
+#include "chrome/browser/chromeos/login/wizard_screen.h"
+
+namespace chromeos {
+
+class ViewsUpdateScreenActor : public DefaultViewScreen<chromeos::UpdateView>,
+                               public UpdateScreenActor {
+ public:
+  ViewsUpdateScreenActor(WizardScreenDelegate* delegate,
+                         int width,
+                         int height);
+
+  virtual ~ViewsUpdateScreenActor() {}
+
+  virtual void Show();
+  virtual void Hide();
+  virtual void ShowManualRebootInfo();
+  virtual void SetProgress(int progress);
+  virtual void ShowCurtain(bool enable);
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ViewsUpdateScreenActor);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_VIEWS_UPDATE_SCREEN_ACTOR_H_