CrOS online EULA: support localization, change timeout

chrome/app/chromeos_strings.grdp

 <?xml version="1.0" encoding="utf-8"?>
 <!-- ChromeOS-specific strings (included from generated_resources.grd).
      Everything in this file is wrapped in <if expr="pp_ifdef('chromeos')">. -->
 <grit-part>
   <message name="IDS_EMPTY_STRING" desc="Empty string, exist only to make code generic. No translation required.">
   </message>
   <!-- Idle logout dialog for retail mode -->
   <message name="IDS_IDLE_LOGOUT_TITLE" desc="Dialog title for the idle logout dialog. Used in retail mode only.">
     Are you still there?
   </message>
@@ skipping 1457 matching lines @@
   <message name="IDS_SIM_UNLOCK_SIM_DISABLED_MESSAGE" desc="Message shown when there're not PUK tries left and SIM card is disabled.">
     This SIM card is disabled and cannot be used. Please contact your service provider for a replacement.
   </message>
 
   <message name="IDS_EULA_BACK_BUTTON" desc="Back button shown on EULA screen.">
     Back
   </message>
   <message name="IDS_EULA_ACCEPT_AND_CONTINUE_BUTTON" desc="Accept button text below EULA terms of service">
     Accept and continue
   </message>
-  <message name="IDS_EULA_POLICY_URL" desc="Link to online ChromeOS Terms of Service">
-    https://www.google.com/intl/[GRITLANGCODE]/chromebook/tos_text.html
-  </message>
   <message name="IDS_EULA_SYSTEM_SECURITY_SETTING" desc="Link from the EULA wizard screen and title of the TPM info dialog">
     System security setting
   </message>
   <message name="IDS_EULA_SYSTEM_INSTALLATION_SETTINGS" desc="Link from the EULA wizard screen and title of the TPM and RLZ info dialog">
     System installation settings
   </message>
   <message name="IDS_EULA_TPM_DESCRIPTION" desc="Dialog box text">
     Your computer contains a Trusted Platform Module (TPM) security device, which is used to implement many critical security features in Chrome OS.
   </message>
   <message name="IDS_EULA_TPM_KEY_DESCRIPTION" desc="Dialog box text">
@@ skipping 2115 matching lines @@
   <message name="IDS_KIOSK_APP_ERROR_UNABLE_TO_MOUNT" desc="Error message used when a kiosk app fails to launch due to cryptohome error.">
     Kryptonite! The cryptohome for the kiosk application could not be mounted.
   </message>
   <message name="IDS_KIOSK_APP_ERROR_UNABLE_TO_INSTALL" desc="Error message used when a kiosk app fails to launch due to install failure.">
     Kiosk application could not be installed.
   </message>
   <message name="IDS_KIOSK_APP_ERROR_USER_CANCEL" desc="Error message used when a kiosk app launch is canceled by user.">
     Kiosk application launch canceled.
   </message>
 </grit-part>