Add 'Updated just now' timestamp to the Previews infobar

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.  The variables is_win, is_macosx, is_linux, and is_posix are available
 for making strings OS specific.  Other platform defines such as use_titlecase
 are declared in build/common.gypi.
 -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
@@ skipping 4965 matching lines @@
          Show original
       </message>
       <message name="IDS_PREVIEWS_INFOBAR_TIMESTAMP_MINUTES" desc="The desciption stating how old a preview version of a page is in minutes. This is shown on the infobar notifying the user that a preview page has been shown.">
          Updated <ph name="MINUTES">$1<ex>30</ex></ph>min ago
       </message>
       <message name="IDS_PREVIEWS_INFOBAR_TIMESTAMP_ONE_HOUR" desc="The desciption stating a preview version of a page is one hour old. This is shown on the infobar notifying the user that a preview page has been shown.">
          Updated 1hr ago
       </message>
       <message name="IDS_PREVIEWS_INFOBAR_TIMESTAMP_HOURS" desc="The desciption stating how old a preview version of a page is in hours. This is shown on the infobar notifying the user that a preview page has been shown.">
          Updated <ph name="HOURS">$1<ex>4</ex></ph>hrs ago
+      </message>      
+      <message name="IDS_PREVIEWS_INFOBAR_TIMESTAMP_UPDATED_NOW" desc="The desciption stating that a preview version of a page was just updated. This is shown on the infobar notifying the user that a preview page has been shown.">
+         Updated just now
       </message>
 
       <!-- WebRTC logs -->
       <message name="IDS_WEBRTC_LOGS_TITLE" desc="Title for the chrome://webrtc-logs page.">
         WebRTC logs
       </message>
       <message name="IDS_WEBRTC_LOGS_LOG_COUNT_BANNER_FORMAT" desc="Format for WebRTC log count banner on chrome://webrtc-logs">
         WebRTC logs (<ph name="WEBRTC_LOG_COUNT">$1<ex>3</ex></ph>)
       </message>
       <message name="IDS_WEBRTC_LOGS_LOG_HEADER_FORMAT" desc="Format for uploaded log entry headings on chrome://webrtc-logs">
@@ skipping 7348 matching lines @@
 
     <!-- VR specific strings -->
     <if expr="enable_vr">
       <message name="IDS_PRESS_APP_TO_EXIT" desc="Text displayed in a transient bubble to tell users how to return from cinema mode (where the page displayed in a cinema like environment) or presentation mode (where the WebVR page occupies the entire screen) to normal mode.">
         Press App button to exit
       </message>
     </if>
   </messages>
  </release>
 </grit>