Expand VPD initial_locale to a list of locales. Use the expanded VPD initial_locale on the OOBE.

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 323 matching lines @@
   </message>
   <message name="IDS_OOBE_LARGE_CURSOR_OPTION" desc="Large mouse cursor option shown on OOBE screens accessibility menu.">
     Large mouse cursor
   </message>
   <message name="IDS_OOBE_HIGH_CONTRAST_MODE_OPTION" desc="High contrast mode option shown on OOBE screens accessibility menu.">
     High contrast mode
   </message>
   <message name="IDS_OOBE_SCREEN_MAGNIFIER_OPTION" desc="Screen magnifier option shown on OOBE screens accessibility menu.">
     Screen magnifier
   </message>
+  <message name="IDS_OOBE_OTHER_LANGUAGES" desc="Option group name dividing vendor-configured languages from other available languages in OOBE 'Select language' select control.">

[Nikita (slow), 2014/01/30 13:23:28]

nit: OOBE > out-of-box

[Alexander Alekseev, 2014/01/31 12:46:54]

Done.

+    Other languages
+  </message>
   <message name="IDS_LOGIN_TITLE" desc="Title of sign in box">
     Sign in
   </message>
   <message name="IDS_LOGIN_TITLE_HINT" desc="Hint under title 'Sign in to Chrome OS'">
     with your Google Account
   </message>
   <message name="IDS_LOGIN_USERNAME">
     Email
   </message>
   <message name="IDS_LOGIN_PASSWORD">
@@ skipping 3673 matching lines @@
   <message name="IDS_CHARGER_REPLACEMENT_DIALOG_TITLE" desc="Title of the charger replacement UI dialg">
     Check charger
   </message>
   <message name="IDS_FLAGS_ENABLE_SYSTEM_SOUNDS_NAME" desc="Name of the flag to enable system sounds independently from ChromeVox.">
     Enable system sounds
   </message>
   <message name="IDS_FLAGS_ENABLE_SYSTEM_SOUNDS_DESCRIPTION" desc="Description of the flag to enable system sounds independently from ChromeVox.">
     System sounds will be played independently from ChromeVox.
   </message>
 </grit-part>