ChromeOS OOBE: fix focus flow in MD-OOBE.

chrome/browser/resources/chromeos/login/oobe_i18n_dropdown.js

Index: chrome/browser/resources/chromeos/login/oobe_i18n_dropdown.js
diff --git a/chrome/browser/resources/chromeos/login/oobe_i18n_dropdown.js b/chrome/browser/resources/chromeos/login/oobe_i18n_dropdown.js
index bcd062d59a198e9bcdf37f3579b184aa0a50b0ad..7e7253a9c29968655705b965733c6115178607b5 100644
--- a/chrome/browser/resources/chromeos/login/oobe_i18n_dropdown.js
+++ b/chrome/browser/resources/chromeos/login/oobe_i18n_dropdown.js
@@ -30,7 +30,7 @@ Polymer({
     /**
      * ARIA-label for the selection menu.
      */
-    ariaLabel: String,
+    labelForAria: String,
   },
 
   /**
@@ -39,6 +39,10 @@ Polymer({
    */
   idToItem_: null,
 
+  focus: function() {
+    this.$.select.focus();
+  },
+
   /**
    * @param {string} value Option value.
    * @private