Eliminate kAshNotifyDisabled and SystemNotification

chrome/browser/chromeos/power/low_battery_observer.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_POWER_LOW_BATTERY_OBSERVER_H_
-#define CHROME_BROWSER_CHROMEOS_POWER_LOW_BATTERY_OBSERVER_H_
-
-#include "base/basictypes.h"
-#include "base/compiler_specific.h"
-#include "base/time.h"
-#include "chrome/browser/chromeos/notifications/system_notification.h"
-#include "chromeos/dbus/power_manager_client.h"
-
-class Profile;
-
-namespace chromeos {
-
-// Displays a system notification when the battery is low.
-class LowBatteryObserver : public PowerManagerClient::Observer {
- public:
-  explicit LowBatteryObserver(Profile* profile);
-  virtual ~LowBatteryObserver();
-
- private:
-  virtual void PowerChanged(const PowerSupplyStatus& power_status) OVERRIDE;
-
-  void Show(base::TimeDelta remaining, bool urgent);
-  void Hide();
-
-  SystemNotification notification_;
-  int remaining_;  // Last displayed remaining time in minutes
-
-  DISALLOW_COPY_AND_ASSIGN(LowBatteryObserver);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_POWER_LOW_BATTERY_OBSERVER_H_