If force-sign-in policy is enabled, popup warning dialog before window closing if auth token becom…

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. If you update this file, be sure also to update
 chromium_strings.grd. -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
       output_all_resource_defines="false" source_lang_id="en" enc_check="möl">
   <outputs>
     <output filename="grit/google_chrome_strings.h" type="rc_header">
@@ skipping 743 matching lines @@
           Link your Chrome data to this account?
         </message>
         <message name="IDS_ENTERPRISE_SIGNIN_EXPLANATION_WITHOUT_PROFILE_CREATION" desc="The warning message displayed to an enterprise user about to link their profile to their Google account. This message is followed by a 'Learn more' link.">
           You are signing in with a managed account and giving its administrator control over your Google Chrome profile. Your Chrome data, such as your apps, bookmarks, history, passwords, and other settings will become permanently tied to <ph name="USER_NAME">$1<ex>pat@example.com</ex></ph>. You will be able to delete this data via the Google Accounts Dashboard, but you will not be able to associate this data with another account. <ph name="LEARN_MORE">$2<ex>Learn more</ex></ph>
         </message>
         <message name="IDS_ENTERPRISE_SIGNIN_EXPLANATION_WITH_PROFILE_CREATION" desc="The warning message displayed to an enterprise user about to link their profile to their Google account. Additionally notifies the user that they can create a new profile instead. This message is followed by a 'Learn more' link.">
           You are signing in with a managed account and giving its administrator control over your Google Chrome profile. Your Chrome data, such as your apps, bookmarks, history, passwords, and other settings will become permanently tied to <ph name="USER_NAME">$1<ex>pat@example.com</ex></ph>. You will be able to delete this data via the Google Accounts Dashboard, but you will not be able to associate this data with another account. You can optionally create a new profile to keep your existing Chrome data separate. <ph name="LEARN_MORE">$2<ex>Learn more</ex></ph>
         </message>
       </if>
 
+      <if expr="toolkit_views">
+        <message name="IDS_ENTERPRISE_FORCE_SIGNOUT_EXPLANATION" desc="Text of the reason to sign out">
+          Authentication certificate failed. Please sign in to Google Chrome again as <ph name="USER_NAME">$1<ex>pat@example.com</ex></ph> or contact your administrator for more information. <ph name="ADDITIONAL_EXPLANATION">$2</ph>
+        </message>
+        <message name="IDS_ENTERPRISE_FORCE_SIGNOUT_EXPLANATION_WITHOUT_USER_NAME" desc="Text of the reason to sign out when there is no valid email address">
+          Authentication certificate failed. Please sign in to Google Chrome again or contact your administrator for more information. <ph name="ADDITIONAL_EXPLANATION">$2</ph>
+      </message>
+      </if>
+
       <!-- Signin Email Confirmation tab modal dialog -->
       <if expr="not chromeos">
         <message name="IDS_SIGNIN_EMAIL_CONFIRMATION_TITLE" desc="Title of the signin email confirmation tab modal dialog.">
           <ph name="USER_EMAIL_ADDRESS">$1<ex>foo@gmail.com</ex></ph> was previously using Chrome
         </message>
       </if>
 
       <!-- SRT bubble messages.
            This string is for the old Chrome Cleanup version and should be
            deleted as soon as all Chrome Cleanup UI is fully integrated into
@@ skipping 513 matching lines @@
         <message name="IDS_WIN10_WELCOME_PIN_SUBHEADING" desc="A subheading on a section which gives instructions on how to pin Chrome to the Windows 10 taskbar.">
           Pin Chrome to your taskbar
         </message>
         <message name="IDS_WIN10_WELCOME_SELECT" desc="An instruction asking the user to select Chrome from an external list of apps.">
           Select <ph name="SMALL_PRODUCT_LOGO">&lt;div class="logo-small"&gt;&lt;/div&gt;</ph> <ph name="BEGIN_BOLD">&lt;strong&gt;</ph>Google Chrome<ph name="END_BOLD">&lt;/strong&gt;</ph>
         </message>
       </if>
     </messages>
   </release>
 </grit>