Implemented screen notifying users about malformed HWID.

chrome/browser/chromeos/login/wrong_hwid_screen.h

+// Copyright (c) 2013 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_WRONG_HWID_SCREEN_H_
+#define CHROME_BROWSER_CHROMEOS_LOGIN_WRONG_HWID_SCREEN_H_
+
+#include <string>
+
+#include "base/basictypes.h"
+#include "base/compiler_specific.h"
+#include "chrome/browser/chromeos/login/wizard_screen.h"
+#include "chrome/browser/chromeos/login/wrong_hwid_screen_actor.h"
+
+namespace chromeos {
+
+// Representation independent class that controls screen showing warning about
+// malformed HWID to users.
+class WrongHWIDScreen : public WizardScreen,
+                        public WrongHWIDScreenActor::Delegate {
+ public:
+  WrongHWIDScreen(ScreenObserver* observer, WrongHWIDScreenActor* actor);
+  virtual ~WrongHWIDScreen();
+
+  // WizardScreen implementation:
+  virtual void PrepareToShow() OVERRIDE;
+  virtual void Show() OVERRIDE;
+  virtual void Hide() OVERRIDE;
+  virtual std::string GetName() const OVERRIDE;
+
+  // WrongHWIDScreenActor::Delegate implementation:
+  virtual void OnExit() OVERRIDE;
+  virtual void OnActorDestroyed(WrongHWIDScreenActor* actor) OVERRIDE;
+
+ private:
+  WrongHWIDScreenActor* actor_;
+
+  DISALLOW_COPY_AND_ASSIGN(WrongHWIDScreen);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_WRONG_HWID_SCREEN_H_
+