Add IDS_ASH_STATUS_TRAY_ACCESSIBILITY_TURNED_ON_BUBBLE

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 190 matching lines @@
       </message>
 
       <message name="IDS_ASH_KEYBOARD_OVERLAY_TITLE" desc="The title of the keyboard overlay.">
         Keyboard Overlay
       </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_ACCESSIBILITY_TURNED_ON_BUBBLE" desc="The message shown on a bubble when accessibility is turned on">
+Accessibility features are enabled.
+Press Ctrl+Alt+Z to cancel.
+      </message>
       <message name="IDS_ASH_STATUS_TRAY_SETTINGS" desc="The label used for the settings item in the status tray.">
         Settings
       </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 192 matching lines @@
       <message name="IDS_ASH_WEB_NOTFICATION_TRAY_SETTINGS" desc="The menu entry or button for visiting the appropriate settings page.">
         Settings...
       </message>
       <message name="IDS_ASH_WEB_NOTFICATION_TRAY_CLEAR_ALL" desc="The button for clearing all notifications.">
         Clear All
       </message>
     </messages>
   </release>
 </grit>