Move chromeos code to namespace chromeos.

chrome/browser/chromeos/cros_power_library.h

-// Copyright (c) 2009 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_CROS_POWER_LIBRARY_H_
-#define CHROME_BROWSER_CHROMEOS_CROS_POWER_LIBRARY_H_
-
-#include "base/observer_list.h"
-#include "base/singleton.h"
-#include "base/time.h"
-#include "third_party/cros/chromeos_power.h"
-
-// This class handles the interaction with the ChromeOS power library APIs.
-// Classes can add themselves as observers. Users can get an instance of this
-// library class like this: CrosPowerLibrary::Get()
-class CrosPowerLibrary {
- public:
-  class Observer {
-   public:
-    virtual void PowerChanged(CrosPowerLibrary* obj) = 0;
-  };
-
-  // This gets the singleton CrosPowerLibrary
-  static CrosPowerLibrary* Get();
-
-  // Returns true if the ChromeOS library was loaded.
-  static bool loaded();
-
-  void AddObserver(Observer* observer);
-  void RemoveObserver(Observer* observer);
-
-  // Whether or not the line power is connected.
-  bool line_power_on() const;
-
-  // Whether or not the battery is fully charged..
-  bool battery_fully_charged() const;
-
-  // The percentage (0-100) of remaining battery.
-  double battery_percentage() const;
-
-  // Whether there is a battery present.
-  bool battery_is_present() const;
-
-  // The amount of time until battery is empty.
-  base::TimeDelta battery_time_to_empty() const;
-
-  // The amount of time until battery is full.
-  base::TimeDelta battery_time_to_full() const;
-
- private:
-  friend struct DefaultSingletonTraits<CrosPowerLibrary>;
-
-  CrosPowerLibrary();
-  ~CrosPowerLibrary();
-
-  // This method is called when there's a change in power status.
-  // This method is called on a background thread.
-  static void PowerStatusChangedHandler(void* object,
-                                        const chromeos::PowerStatus& status);
-
-  // This methods starts the monitoring of power changes.
-  void Init();
-
-  // Called by the handler to update the power status.
-  // This will notify all the Observers.
-  void UpdatePowerStatus(const chromeos::PowerStatus& status);
-
-  ObserverList<Observer> observers_;
-
-  // A reference to the battery power api, to allow callbacks when the battery
-  // status changes.
-  chromeos::PowerStatusConnection power_status_connection_;
-
-  // The latest power status.
-  chromeos::PowerStatus status_;
-
-  DISALLOW_COPY_AND_ASSIGN(CrosPowerLibrary);
-};
-
-#endif  // CHROME_BROWSER_CHROMEOS_CROS_POWER_LIBRARY_H_