get rid of old options pages

chrome/browser/ui/webui/options/chromeos/system_settings_provider.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_UI_WEBUI_OPTIONS_CHROMEOS_SYSTEM_SETTINGS_PROVIDER_H_
-#define CHROME_BROWSER_UI_WEBUI_OPTIONS_CHROMEOS_SYSTEM_SETTINGS_PROVIDER_H_
-
-#include <vector>
-
-#include "base/callback.h"
-#include "base/string16.h"
-#include "chrome/browser/chromeos/cros_settings_provider.h"
-#include "chrome/browser/chromeos/system/timezone_settings.h"
-#include "third_party/icu/public/i18n/unicode/timezone.h"
-
-namespace base {
-class Value;
-class ListValue;
-}
-
-namespace chromeos {
-
-class SystemSettingsProvider : public CrosSettingsProvider,
-                               public system::TimezoneSettings::Observer {
- public:
-  explicit SystemSettingsProvider(const NotifyObserversCallback& notify_cb);
-  virtual ~SystemSettingsProvider();
-
-  // CrosSettingsProvider implementation.
-  virtual const base::Value* Get(const std::string& path) const OVERRIDE;
-  virtual bool PrepareTrustedValues(const base::Closure& callback) OVERRIDE;
-  virtual bool HandlesSetting(const std::string& path) const OVERRIDE;
-  virtual void Reload() OVERRIDE;
-
-  // TimezoneSettings::Observer implementation.
-  virtual void TimezoneChanged(const icu::TimeZone& timezone) OVERRIDE;
-
-  // Creates the map of timezones used by the options page.
-  base::ListValue* GetTimezoneList();
-
- private:
-  // CrosSettingsProvider implementation.
-  virtual void DoSet(const std::string& path,
-                     const base::Value& in_value) OVERRIDE;
-
-  // Gets timezone name.
-  static string16 GetTimezoneName(const icu::TimeZone& timezone);
-
-  // Gets timezone ID which is also used as timezone pref value.
-  static string16 GetTimezoneID(const icu::TimeZone& timezone);
-
-  // Gets timezone object from its id.
-  const icu::TimeZone* GetTimezone(const string16& timezone_id);
-
-  // Gets a timezone id from a timezone in |timezones_| that has the same
-  // rule of given |timezone|.
-  // One timezone could have multiple timezones,
-  // e.g.
-  //   US/Pacific == America/Los_Angeles
-  // We should always use the known timezone id when passing back as
-  // pref values.
-  string16 GetKnownTimezoneID(const icu::TimeZone& timezone) const;
-
-  // Timezones.
-  std::vector<icu::TimeZone*> timezones_;
-
-  scoped_ptr<base::Value> timezone_value_;
-
-  DISALLOW_COPY_AND_ASSIGN(SystemSettingsProvider);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS_CHROMEOS_SYSTEM_SETTINGS_PROVIDER_H_