Elevated install of recovery component (UI part).

chrome/app/google_chrome_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 <!-- This file contains definitions of strings that are specific to
 Google Chrome. These strings will be translated for each locale that Google
 Chrome supports. -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
       source_lang_id="en" enc_check="möl">
   <outputs>
     <output filename="grit/google_chrome_strings.h" type="rc_header">
       <emit emit_type='prepend'></emit>
@@ skipping 1145 matching lines @@
       <message name="IDS_UPGRADE_BUBBLE_TITLE" desc="Text for the title of the upgrade bubble view.">
         Chrome is out of date
       </message>
       <message name="IDS_UPGRADE_BUBBLE_TEXT" desc="Text for the upgrade bubble view full description.">
         Chrome could not update itself to the latest version, so you are missing out on awesome new features and security fixes. You need to manually reinstall Chrome.
       </message>
       <message name="IDS_UPGRADE_BUBBLE_REENABLE_TEXT" desc="Text for the upgrade bubble view full description.">
         Chrome could not update itself to the latest version, so you are missing out on awesome new features and security fixes. You need to update Chrome.
       </message>
 
+       <!-- Upgrade recovery bubble -->
+       <message name="IDS_RUN_RECOVERY" desc="Text for the button the user clicks to recover Chrome update channel.">
+         Fix Chrome
+       </message>
+       <message name="IDS_RECOVERY_BUBBLE_TITLE" desc="Text for the title of the upgrade recovery bubble view.">
+         Chrome upgrade channel is broken
+       </message>
+       <message name="IDS_RECOVERY_BUBBLE_TEXT" desc="Text for the upgrade recovery bubble view full description.">
+         Chrome upgrade channel is broken which will cause Chrome fail to update to the latest version. Administrative privileges is required to fix that. Do you want to fix it?
+       </message>
+
       <!-- Dialog that asks whether user wants to participate in Safe Browsing Extended Reporting -->
       <message name="IDS_FEEDBACK_SERVICE_DIALOG_TITLE" desc="Title of the dialog asking whether the user wants to upload suspected malicious files for analysis">
         Help make Chrome better
       </message>
       <message name="IDS_FEEDBACK_SERVICE_DIALOG_EXPLANATION" desc="Explanation of the dialog asking whether the user wants to upload suspected malicious files for analysis">
         You can help make Chrome safer and easier to use by automatically reporting details of possible security incidents to Google.
       </message>
 
       <!-- SSL Interstitial V2 strings -->
       <if expr="is_android or is_ios">
@@ skipping 19 matching lines @@
           Chrome updates automatically so you always have the freshest version. When this download completes, Chrome will restart and you'll be on your way.
         </message>
         <message name="IDS_EULA_SCREEN_ACCESSIBLE_TITLE" desc="Title to be spoken on opening the OOBE EULA screen">
           Chrome OS terms
         </message>
       </if>
 
     </messages>
   </release>
 </grit>