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// 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_SYSTEM_TIMEZONE_SETTINGS_H_
#define CHROME_BROWSER_CHROMEOS_SYSTEM_TIMEZONE_SETTINGS_H_
#pragma once
#include <string>
#include "chrome/browser/cancelable_request.h"
#include "unicode/timezone.h"
namespace chromeos {
namespace system {
// This interface provides access to Chrome OS timezone settings.
class TimezoneSettings : public CancelableRequestProvider {
public:
class Observer {
public:
// Called when the timezone has changed. |timezone| is non-null.
virtual void TimezoneChanged(const icu::TimeZone& timezone) = 0;
};
static TimezoneSettings* GetInstance();
// Returns the current timezone as an icu::Timezone object.
virtual const icu::TimeZone& GetTimezone() = 0;
// Sets the current timezone. |timezone| must be non-null.
virtual void SetTimezone(const icu::TimeZone& timezone) = 0;
virtual void AddObserver(Observer* observer) = 0;
virtual void RemoveObserver(Observer* observer) = 0;
protected:
virtual ~TimezoneSettings() {}
};
} // namespace system
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_SYSTEM_TIMEZONE_SETTINGS_H_
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