Implementation of Device End of Life Notification

chrome/browser/chromeos/eol_notification.h

+// Copyright (c) 2016 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_EOL_NOTIFICATION_H_
+#define CHROME_BROWSER_CHROMEOS_EOL_NOTIFICATION_H_
+
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "base/strings/string16.h"
+#include "chrome/browser/profiles/profile.h"
+
+namespace message_center {
+class MessageCenter;
+}
+
+namespace chromeos {
+
+// EolNotification is created when user logs in. It is
+// used to check current EndOfLife Status of the device,
+// and show notification accordingly.
+class EolNotification {
+ public:
+  explicit EolNotification(Profile* profile);
+  ~EolNotification();
+
+  // Check Eol status from update engine.
+  void CheckEolStatus();
+
+ private:
+  // Callback invoked when |GetEolStatus()| has finished.
+  void OnEolStatus(int status);
+
+  // Create or updates the notfication.
+  void Update();
+
+  // Returns messages that applys to this eol status.
+  base::string16 GetEolMessage();
+
+  // Profile which is associated with the EndOfLife notification.
+  Profile* const profile_;
+
+  // Device Eol status.
+  int status_;
+
+  // Factory of callbacks.
+  base::WeakPtrFactory<EolNotification> weak_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(EolNotification);
+};
+
+}  // namespace chromeos
+
+#endif  // CHROME_BROWSER_CHROMEOS_EOL_NOTIFICATION_H_