show notification on locale change

chrome/app/generated_resources.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <!-- This file contains definitions of resources that will be translated for
 each locale. -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
       source_lang_id="en" enc_check="möl">
   <outputs>
     <output filename="grit/generated_resources.h" type="rc_header">
       <emit emit_type='prepend'></emit>
@@ skipping 4317 matching lines @@
       <!-- Session Crashed Info Bar-->
       <message name="IDS_SESSION_CRASHED_VIEW_RESTORE_BUTTON" desc="Title of the restore button in the session crashed view.">
         Restore
       </message>
 
       <!-- Bad Flags Info Bar-->
       <message name="IDS_BAD_FLAGS_WARNING_MESSAGE" desc="Message shown when an unsupported command-line flag is used. [Keep it short so it fits in the infobar.]">
         You are using an unsupported command-line flag: <ph name="BAD_FLAG">$1<ex>--no-sandbox</ex></ph>. Stability and security will suffer.
       </message>
 
+      <!-- Locale Change Notification-->
+      <if expr="pp_ifdef('chromeos')">
+        <message name="IDS_LOCALE_CHANGE_MESSAGE" desc="Message shown when locale was changed based on profile content.">
+          Interface language was changed: "<ph name="FROM_LOCALE">$1</ph>" => "<ph name="TO_LOCALE">$2</ph>" based on your preference.
+        </message>
+        <message name="IDS_LOCALE_CHANGE_REVERT_MESSAGE" desc="Link to revert a change.">
+          If you are unhappy about it: click here to close browser, sign out and revert.
+        </message>
+      </if>
+ 
       <if expr="pp_ifdef('chromeos')">
         <!-- about:system strings -->
         <message name="IDS_ABOUT_SYS_TITLE" desc="about:system page title">
           About System
         </message>
         <message name="IDS_ABOUT_SYS_DESC" desc="about:system page description">
           System diagnostic data
         </message>
         <message name="IDS_ABOUT_SYS_TABLE_TITLE" desc="Title of a table that contains system details">
           Details
@@ skipping 7317 matching lines @@
     </includes>
     <structures fallback_to_english="true">
       <structure name="IDD_CHROME_FRAME_FIND_DIALOG" file="cf_resources.rc" type="dialog" >
       </structure>
       <structure name="IDD_CHROME_FRAME_READY_PROMPT" file="cf_resources.rc" type="dialog" >
       </structure>
     </structures>
 
   </release>
 </grit>