ChromeOS: implement per-user time zone preferences.

chrome/browser/chromeos/login/wizard_controller.cc

 // 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.
 
 #include "chrome/browser/chromeos/login/wizard_controller.h"
 
 #include <signal.h>
 #include <stddef.h>
 #include <stdlib.h>
 #include <sys/types.h>
@@ skipping 1409 matching lines @@
         !policy_timezone.empty()) {
       VLOG(1) << "Resolve TimeZone: TimeZone settings are overridden"
               << " by DevicePolicy.";
       return;
     }
   }
 
   if (!timezone->timeZoneId.empty()) {
     VLOG(1) << "Resolve TimeZone: setting timezone to '" << timezone->timeZoneId
             << "'";
-
-    system::TimezoneSettings::GetInstance()->SetTimezoneFromID(
-        base::UTF8ToUTF16(timezone->timeZoneId));
+    g_browser_process->local_state()->SetString(prefs::kSigninScreenTimezone,
+                                                timezone->timeZoneId);
+    CrosSettings::Get()->SetString(kSystemTimezone, timezone->timeZoneId);

[stevenjb, 2017/05/15 17:08:02]

Setting both of these in multiple places is a little confusing, maybe have a
helper function somewhere instead, maybe in timezone_util?

[Alexander Alekseev, 2017/05/16 01:11:56]

Done.

   }
 }
 
 TimeZoneProvider* WizardController::GetTimezoneProvider() {
   if (!timezone_provider_) {
     timezone_provider_.reset(
         new TimeZoneProvider(g_browser_process->system_request_context(),
                              DefaultTimezoneProviderURL()));
   }
   return timezone_provider_.get();
@@ skipping 97 matching lines @@
   SetCurrentScreen(screen);
 }
 
 AutoEnrollmentController* WizardController::GetAutoEnrollmentController() {
   if (!auto_enrollment_controller_)
     auto_enrollment_controller_ = base::MakeUnique<AutoEnrollmentController>();
   return auto_enrollment_controller_.get();
 }
 
 }  // namespace chromeos