Give the system tray an accessible role and name so that something

ash/ash_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!--
 This file contains the strings for ash.
 -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
       source_lang_id="en" enc_check="möl">
   <outputs>
     <output filename="grit/ash_strings.h" type="rc_header">
@@ skipping 157 matching lines @@
         Applications
       </message>
       <message name="IDS_AURA_CYCLER_TITLE" desc="The title used for the Aura window cycler in the launcher">
         Window Cycler
       </message>
       <message name="IDS_AURA_LAUNCHER_OVERFLOW_NAME" desc="The title used for the Aura overflow button in the launcher">
         Overflow Button
       </message>
 
       <!-- Status tray items -->
+      <message name="IDS_ASH_STATUS_TRAY_ACCESSIBLE_NAME" desc="The accessible name of the status tray.">
+        Status tray
+      </message>
       <message name="IDS_ASH_STATUS_TRAY_SETTINGS_AND_HELP" desc="The label used for the help-and-settings item in the status tray.">
         Settings and Help
       </message>
       <message name="IDS_ASH_STATUS_TRAY_SHUT_DOWN" desc="The label used for the button in the status tray to shut down the system.">
         Shut down
       </message>
       <message name="IDS_ASH_STATUS_TRAY_SIGN_OUT" desc="The label used for the button in the status tray to sign out of the system.">
         Sign out
       </message>
       <message name="IDS_ASH_STATUS_TRAY_EXIT_GUEST" desc="The label used for the button in the status tray to terminate a guest session.">
@@ skipping 26 matching lines @@
       <message name="IDS_ASH_STATUS_TRAY_DISABLE_MOBILE" desc="The label used for the item to disable cellular networks.">
         Disable cellular
       </message>
       <message name="IDS_ASH_STATUS_TRAY_UPDATE" desc="The label used in the tray popup to notify that the user should restart to get system updates.">
         Restart to update
       </message>
     </messages>
   </release>
 </grit>