Add support for cellular geolocation

chrome/browser/chromeos/system/timezone_resolver_manager.h

 // Copyright 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_SYSTEM_TIMEZONE_RESOLVER_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_SYSTEM_TIMEZONE_RESOLVER_MANAGER_H_
 
 #include "base/macros.h"
 #include "chromeos/timezone/timezone_resolver.h"
 #include "components/prefs/pref_change_registrar.h"
 
 class PrefService;
 
 namespace chromeos {
 namespace system {
 
 class TimeZoneResolverManager : public TimeZoneResolver::Delegate {
  public:
   TimeZoneResolverManager();
   ~TimeZoneResolverManager() override;
 
   // This sets primary_user_prefs_.
   void SetPrimaryUserPrefs(PrefService* pref_service);
 
   // TimeZoneResolver::Delegate overrides:
   bool ShouldSendWiFiGeolocationData() override;
 
+  // TimeZoneResolver::Delegate overrides:
+  bool ShouldSendCellularGeolocationData() override;
+
   // Starts or stops TimezoneResolver according to currect settings.
   void UpdateTimezoneResolver();
 
   // Returns true if result of timezone resolve should be applied to
   // system timezone (preferences might have changed since request was started).
   bool ShouldApplyResolvedTimezone();
 
   // Returns the result of the provate call for tests.
   bool TimeZoneResolverShouldBeRunningForTests();
 
  private:
   // Returns true if TimeZoneResolver should be running and taking in account
   // all configuration data.
   bool TimeZoneResolverShouldBeRunning();
 
+  int GetTimezoneManagementSetting();
+
   // This is non-null only after user logs in.
   PrefService* primary_user_prefs_;
 
   // This is used to subscribe to policy preference.
   PrefChangeRegistrar local_state_pref_change_registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(TimeZoneResolverManager);
 };
 
 }  // namespace system
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_SYSTEM_TIMEZONE_RESOLVER_MANAGER_H_