Improve apps v2 upgrade UX

remoting/resources/remoting_strings.grd

 <?xml version="1.0" encoding="UTF-8"?>
 
 <grit base_dir="." current_release="1" enc_check="möl" latest_public_release="0" source_lang_id="en">
   <outputs>
     <output filename="remoting/base/string_resources.h" type="rc_header">
       <emit emit_type="prepend"/>
     </output>
 
     <output filename="remoting/resources/am.pak" lang="am" type="data_package"/>
     <output filename="remoting/resources/ar.pak" lang="ar" type="data_package"/>
@@ skipping 298 matching lines @@
         </message>
         <message desc="Message displayed when the current computer is not accepting remote connections, instructing the user how to enable them." name="IDS_HOME_DAEMON_START_MESSAGE">
           You must enable remote connections if you want to use Chrome Remote Desktop to access this computer.
         </message>
         <message desc="Message displayed to the user if there are no hosts registered to their account, informing them how to set up a host on another computer." name="IDS_HOST_LIST_EMPTY_HOSTING_SUPPORTED">
           To enable remote connections to a different computer, install Chrome Remote Desktop there and click “<ph name="BUTTON_NAME">$1<ex>Enable remote connections</ex></ph>”.
         </message>
         <message desc="Message displayed to the user if there are no hosts registered to their account, informing them how to set up a host on another computer." name="IDS_HOST_LIST_EMPTY_HOSTING_UNSUPPORTED">
           You have no computers registered. To enable remote connections to a computer, install Chrome Remote Desktop there and click “<ph name="BUTTON_NAME">$1<ex>Enable remote connections</ex></ph>”.
         </message>
+        <message desc="Message displayed to the user if there are no hosts registered to her account.  If the user has previously signed-in to the v1 app with an account other than her profile, she will lose access to all her hosts once they upgrade to the v2 app.  This message informs her to sign in to the chrome with that account and re-install Chromoting." name="IDS_HOST_LIST_EMPTY_V2_MIGRATION">
+          You have previously signed in as <ph name="USER_NAME">$1<ex>John Doe</ex></ph> (<ph name="USER_EMAIL">$2<ex>john.doe@gmail.com</ex></ph>).  To access your computers in that account, <ph name="LINK_BEGIN">$3<ex>&lt;a href="https://support.google.com/chrome/answer/2364824?hl=en"&gt;</ex></ph>sign in to Google Chrome<ph name="LINK_END">$4<ex>&lt;/a&gt;</ex></ph> with that account and re-install Chrome Remote Desktop.
+        </message>
         <message desc="Message displayed next to the checkbox that the user can select to allow crash dump collection and reporting." name="IDS_HOST_SETUP_CRASH_REPORTING_MESSAGE">
           Help us improve Chrome Remote Desktop by allowing us to collect usage statistics and crash reports.
         </message>
         <message desc="Message shown when user is asked to manually install the Host components." name="IDS_HOST_SETUP_INSTALL">
           Chrome is downloading the Chrome Remote Desktop Host installer.  Once the download is complete, please run the installer before continuing.
         </message>
         <message desc="Message displayed when the client or host has disconnected." name="IDS_MESSAGE_SESSION_FINISHED">
           Your Chrome Remote Desktop session has ended.
         </message>
         <message desc="The product name. Displayed in various Chrome pages, including the New Tab page, and displayed prominently on the app's main page." name="IDS_PRODUCT_NAME">
@@ skipping 82 matching lines @@
         </message>
         <message desc="Message displayed when the current computer is not accepting remote connections, instructing the user how to enable them." name="IDS_HOME_DAEMON_START_MESSAGE">
           You must enable remote connections if you want to use Chromoting to access this computer.
         </message>
         <message desc="Message displayed to the user if there are no hosts registered to their account, informing them how to set up a host on another computer." name="IDS_HOST_LIST_EMPTY_HOSTING_SUPPORTED">
           To enable remote connections to a different computer, install Chromoting there and click “<ph name="BUTTON_NAME">$1<ex>Enable remote connections</ex></ph>”.
         </message>
         <message desc="Message displayed to the user if there are no hosts registered to their account, informing them how to set up a host on another computer." name="IDS_HOST_LIST_EMPTY_HOSTING_UNSUPPORTED">
           You have no computers registered. To enable remote connections to a computer, install Chromoting there and click “<ph name="BUTTON_NAME">$1<ex>Enable remote connections</ex></ph>”.
         </message>
+        <message desc="Message displayed to the user if there are no hosts registered to her account.  If the user has previously signed-in to the v1 app with an account other than her profile, she will lose access to all her hosts once they upgrade to the v2 app.  This message informs her to sign in to the chrome with that account and re-install Chromoting." name="IDS_HOST_LIST_EMPTY_V2_MIGRATION">
+          You have previously signed in as <ph name="USER_NAME">$1<ex>John Doe</ex></ph> (<ph name="USER_EMAIL">$2<ex>john.doe@gmail.com</ex></ph>).  To access your computers in that account, <ph name="LINK_BEGIN">$3<ex>&lt;a href="https://support.google.com/chrome/answer/2364824?hl=en"&gt;</ex></ph>sign in to Chromium<ph name="LINK_END">$4<ex>&lt;/a&gt;</ex></ph> with that account and re-install Chromoting.
+        </message>
         <message desc="Message displayed next to the checkbox that the user can select to allow crash dump collection and reporting." name="IDS_HOST_SETUP_CRASH_REPORTING_MESSAGE">
           Help us improve Chromoting by allowing us to collect usage statistics and crash reports.
         </message>
         <message desc="Message shown when user is asked to manually install the Host components." name="IDS_HOST_SETUP_INSTALL">
           Chrome is downloading the Chromoting Host installer.  Once the download is complete, please run the installer before continuing.
         </message>
         <message desc="Message displayed when the client or host has disconnected." name="IDS_MESSAGE_SESSION_FINISHED">
           Your Chromoting session has ended.
         </message>
         <message desc="The product name. Displayed in various Chrome pages, including the New Tab page, and displayed prominently on the app's main page." name="IDS_PRODUCT_NAME">
@@ skipping 539 matching lines @@
       </message>
       <message desc="Label for the button to accept sharing the computer in 'It2Me' mode." name="IDS_SHARE_CONFIRM_DIALOG_CONFIRM" >
         Share
       </message>
       <message desc="Label for the button to decline sharing the computer in 'It2Me' mode." name="IDS_SHARE_CONFIRM_DIALOG_DECLINE" >
         Cancel
       </message>
     </messages>
   </release>
 </grit>