UMA: How often are different network error screens encountered during OOBE

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

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /**
  * @fileoverview Offline message screen implementation.
  */
 
 login.createScreen('ErrorMessageScreen', 'error-message', function() {
   // Link which starts guest session for captive portal fixing.
@@ skipping 35 matching lines @@
   };
 
   // Possible error states of the screen. Must be in the same order as
   // ErrorScreen::ErrorState enum values.
   /** @const */ var ERROR_STATES = [
     ERROR_STATE.UNKNOWN,
     ERROR_STATE.PORTAL,
     ERROR_STATE.OFFLINE,
     ERROR_STATE.PROXY,
     ERROR_STATE.AUTH_EXT_TIMEOUT,
-    ERROR_STATE.KIOSK_ONLINE
+    ERROR_STATE.NONE,
+    ERROR_STATE.KIOSK_ONLINE,
   ];
 
   return {
     EXTERNAL_API: [
       'updateLocalizedContent',
       'onBeforeShow',
       'onBeforeHide',
       'allowGuestSignin',
       'allowOfflineLogin',
       'setUIState',
@@ skipping 294 matching lines @@
     /**
      * Updates visibility of the label indicating we're reconnecting.
      * @param {boolean} show Whether the label should be shown.
      */
     showConnectingIndicator: function(show) {
       this.classList.toggle('show-connecting-indicator', show);
       this.onContentChange_();
     }
   };
 });