Fixed button focusing in OOBE screens.

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

Index: chrome/browser/resources/chromeos/login/display_manager.js
diff --git a/chrome/browser/resources/chromeos/login/display_manager.js b/chrome/browser/resources/chromeos/login/display_manager.js
index 07fbab324a5f892494c0627e997d152c466f0c94..8d21ebc362ddd21b6eddd642b4629b7dcfba375d 100644
--- a/chrome/browser/resources/chromeos/login/display_manager.js
+++ b/chrome/browser/resources/chromeos/login/display_manager.js
@@ -259,6 +259,11 @@ cr.define('cr.ui.login', function() {
       this.currentStep_ = nextStepIndex;
       $('oobe').className = nextStepId;
 
+      // Focus the default control (if specified).
+      var defaultControl = newStep.defaultControl;
+      if (defaultControl)
+        defaultControl.focus();
+
       $('step-logo').hidden = newStep.classList.contains('no-logo');
 
       chrome.send('updateCurrentScreen', [this.currentScreen.id]);