Add string for case when supervised user creation is disabled due to "only these users can log in" …

chrome/app/chromeos_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <!-- ChromeOS-specific strings (included from generated_resources.grd).
      Everything in this file is wrapped in <if expr="pp_ifdef('chromeos')">. -->
 <grit-part>
   <message name="IDS_EMPTY_STRING" desc="Empty string, exist only to make code generic. No translation required.">
   </message>
   <!-- Idle logout dialog for retail mode -->
   <message name="IDS_IDLE_LOGOUT_TITLE" desc="Dialog title for the idle logout dialog. Used in retail mode only.">
     Are you still there?
   </message>
@@ skipping 453 matching lines @@
   </message>
   <message name="IDS_CREATE_LOCALLY_MANAGED_USER_FEATURE_NAME" desc="Title close to icon shown on side of Google sign-in UI to create a supervised user.">
     Supervised user
   </message>
     <message name="IDS_CREATE_LOCALLY_MANAGED_USER_HTML" desc="Text with actual link shown on side of Google sign-in UI to create a supervised user.">
       <ph name="LINK_START">$1<ex>&gt;a&lt;</ex></ph>Create a supervised user<ph name="LINK_END">$2<ex>&gt;/a&lt;</ex></ph> for this device.
     </message>
   <message name="IDS_CREATE_LOCALLY_MANAGED_USER_NO_MANAGER_TEXT" desc="Text shown when supervised user can be created, but no users that can be manager exist.">
     At least one account must exist on this device before creating a supervised user.
   </message>
+  <message name="IDS_CREATE_LOCALLY_MANAGED_USER_CREATION_RESTRICTED_TEXT" desc="Text shown when supervised user can be created, but owner of the device restricted managed user creation or whitelist has been enabled for this device.">
+    Creation of supervised users is restricted by the owner of this device.
+  </message>
   <message name="IDS_CREATE_LOCALLY_MANAGED_INTRO_TEXT_TITLE" desc="Supervised user dialog, intro page, title">
     What is a supervised user?
   </message>
   <message name="IDS_CREATE_LOCALLY_MANAGED_INTRO_ALTERNATE_TEXT" desc="Supervised user dialog, intro page, first paragraph">
     A supervised user can explore the web with your guidance. As the manager of a supervised user, you can
     <ph name="BEGIN_BOLD">&lt;strong&gt;</ph>allow or prohibit<ph name="END_BOLD">&lt;/strong&gt;</ph> certain websites,
     <ph name="BEGIN_BOLD">&lt;strong&gt;</ph>review<ph name="END_BOLD">&lt;/strong&gt;</ph> websites the supervised user has visited, and
     <ph name="BEGIN_BOLD">&lt;strong&gt;</ph>manage<ph name="END_BOLD">&lt;/strong&gt;</ph> other settings.
   </message>
   <message name="IDS_CREATE_LOCALLY_MANAGED_INTRO_TEXT_1" desc="Supervised user dialog, intro page, first paragraph">
@@ skipping 3286 matching lines @@
     You are currently connected to the <ph name="NETWORK_TYPE">$1<ex>cellular</ex></ph> network.
   </message>
   <message name="IDS_UPGRADE_NETWORK_LIST_CELLULAR_ALLOWED" desc="Status label: for updates you need to connect to an Ethernet or Wi-Fi">
     To check for updates, please use Ethernet or Wi-Fi.
   </message>
   <message name="IDS_UPGRADE_NETWORK_LIST_CELLULAR_DISALLOWED" desc="Status label: for updates you need to connect to an Ethernet, mobile data or Wi-Fi">
     To check for updates, please use Ethernet, Wi-Fi or mobile data.
   </message>
 
 </grit-part>