[Extensions Views] Update the extension installed bubble's sync promo

chrome/app/chromium_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 <!-- This file contains definitions of strings that are distribution specific.
 If you update this file, be sure also to update google_chrome_strings.grd. -->
 
 <grit base_dir="." latest_public_release="0" current_release="1"
       source_lang_id="en" enc_check="möl">
   <outputs>
     <output filename="grit/chromium_strings.h" type="rc_header">
       <emit emit_type='prepend'></emit>
     </output>
@@ skipping 629 matching lines @@
       <!-- Extension/App install prompt -->
       <message name="IDS_EXTENSION_INLINE_INSTALL_PROMPT_TITLE" desc="Titlebar of the extension or app inline installation prompt window">
         Add to Chromium
       </message>
 
       <if expr="enable_extensions">
         <!-- Extension installed bubble -->
         <message name="IDS_EXTENSION_INSTALLED_HEADING" desc="First line in the content area of the extension installed bubble. Instructs that the extension was installed.">
           <ph name="EXTENSION_NAME">$1<ex>Gmail Checker</ex></ph> has been added to Chromium.
         </message>
+        <message name="IDS_EXTENSION_INSTALLED_SYNC_PROMO_LINK_NEW" desc="Text of the link to sign in to Chromium from the extension installed bubble. This will be converted to a link, with additional text around it.">
+          sign in to Chromium
+        </message>
         <message name="IDS_EXTENSION_INSTALLED_SIGNIN_PROMO_LINK" desc="The first part of the sign-in promo paragraph. This part will be converted to a link and will get more text appended to it (see IDS_EXTENSION_INSTALLED_SIGNIN_PROMO). Keep this text short.">
           Sign in to Chromium
         </message>
 
         <!-- Extension context menu -->
         <if expr="not use_titlecase">
           <message name="IDS_EXTENSIONS_HIDE_BUTTON_IN_MENU" desc="The extension context menu item to hide the button in the application menu (sentence case).">
             Hide in Chromium menu
           </message>
         </if>
@@ skipping 615 matching lines @@
         </message>
         <message name="IDS_WIN_PROMPT_TO_CLOSE_APPS_FOR_DESKTOP"
                  desc="Modal message box prompt shown to the user after requesting to relaunch in Desktop mode while packaged apps are running, which will require all packaged apps to be closed and then restarted. Dialog is shown with choices: OK, Cancel.">
           Relaunching in Desktop mode will close and relaunch your Chromium apps.
         </message>
       </if>
 
     </messages>
   </release>
 </grit>