Preference dis/allowing supervised users creation is now available as owner setting, not only as de…

chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc

 // Copyright (c) 2013 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/ui/webui/chromeos/login/signin_screen_handler.h"
 
 #include <algorithm>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 310 matching lines @@
   gaia_screen_handler_->SetSigninScreenHandler(this);
   network_state_informer_->AddObserver(this);
   allow_new_user_subscription_ = CrosSettings::Get()->AddSettingsObserver(
       kAccountsPrefAllowNewUser,
       base::Bind(&SigninScreenHandler::UserSettingsChanged,
                  base::Unretained(this)));
   allow_guest_subscription_ = CrosSettings::Get()->AddSettingsObserver(
       kAccountsPrefAllowGuest,
       base::Bind(&SigninScreenHandler::UserSettingsChanged,
                  base::Unretained(this)));
+  allow_supervised_subscription_ = CrosSettings::Get()->AddSettingsObserver(
+      kAccountsPrefSupervisedUsersEnabled,
+      base::Bind(&SigninScreenHandler::UserSettingsChanged,

[Nikita (slow), 2014/04/08 14:02:09]

nit: Please double check the code that changing this setting is actually
reflected when UserSettingsChanged() is called.

[merkulova, 2014/04/09 15:24:19]

Removed as discussed offline because we have duplicated subscriptions with
ExistingUserController that exists all along SigninScreenHandler lifetime.

+                 base::Unretained(this)));
 
   registrar_.Add(this,
                  chrome::NOTIFICATION_AUTH_NEEDED,
                  content::NotificationService::AllSources());
   registrar_.Add(this,
                  chrome::NOTIFICATION_AUTH_SUPPLIED,
                  content::NotificationService::AllSources());
   registrar_.Add(this,
                  chrome::NOTIFICATION_AUTH_CANCELLED,
                  content::NotificationService::AllSources());
@@ skipping 1450 matching lines @@
   DCHECK(gaia_screen_handler_);
   return gaia_screen_handler_->frame_state();
 }
 
 net::Error SigninScreenHandler::FrameError() const {
   DCHECK(gaia_screen_handler_);
   return gaia_screen_handler_->frame_error();
 }
 
 }  // namespace chromeos