cros: Change max users to be a constant

chrome/browser/ui/ash/system_tray_delegate_chromeos.cc

 // Copyright 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/ash/system_tray_delegate_chromeos.h"
 
 #include <stddef.h>
 
 #include <algorithm>
 #include <memory>
@@ skipping 316 matching lines @@
   if (!wm_shell->delegate()->IsMultiProfilesEnabled())
     return;
 
   // Only regular non-supervised users could add other users to current session.
   if (user_manager::UserManager::Get()->GetActiveUser()->GetType() !=
       user_manager::USER_TYPE_REGULAR) {
     return;
   }
 
   if (user_manager::UserManager::Get()->GetLoggedInUsers().size() >=
-      session_manager::SessionManager::Get()
-          ->GetMaximumNumberOfUserSessions()) {
+      session_manager::kMaxmiumNumberOfUserSessions) {
     return;
   }
 
   // Launch sign in screen to add another user to current session.
   if (user_manager::UserManager::Get()
           ->GetUsersAllowedForMultiProfile()
           .size()) {
     // Don't show dialog if any logged in user in multi-profiles session
     // dismissed it.
     bool show_intro = true;
@@ skipping 606 matching lines @@
   LOG(WARNING) << "SystemTrayDelegateChromeOS::GetChildUserMessage call while "
                << "ENABLE_SUPERVISED_USERS undefined.";
   return base::string16();
 }
 
 ash::SystemTrayDelegate* CreateSystemTrayDelegate() {
   return new SystemTrayDelegateChromeOS();
 }
 
 }  // namespace chromeos