ChromeOS: implement per-user time zone preferences.

chrome/browser/chromeos/login/users/chrome_user_manager_impl.cc

 // Copyright 2014 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/users/chrome_user_manager_impl.h"
 
 #include <stddef.h>
 
 #include <cstddef>
 #include <set>
@@ skipping 480 matching lines @@
         if (IsLoggedInAsUserWithGaiaAccount())
           ManagerPasswordServiceFactory::GetForProfile(profile);
 
         if (!profile->IsOffTheRecord()) {
           AuthSyncObserver* sync_observer =
               AuthSyncObserverFactory::GetInstance()->GetForProfile(profile);
           sync_observer->StartObserving();
           multi_profile_user_controller_->StartObserving(profile);
         }
       }
+      system::UpdateSystemTimezone(profile);
       UpdateUserTimeZoneRefresher(profile);
       break;
     }
     case chrome::NOTIFICATION_PROFILE_CREATED: {
       Profile* profile = content::Source<Profile>(source).ptr();
       user_manager::User* user =
           ProfileHelper::Get()->GetUserByProfile(profile);
       if (user != NULL) {
         user->set_profile_is_created();
 
@@ skipping 884 matching lines @@
       break;
     default:
       NOTREACHED();
       break;
   }
 
   return user;
 }
 
 }  // namespace chromeos