Added fix that Gaia should be reloaded when proxy settings were changed.

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.
  */
 
 cr.define('login', function() {
   // Screens that should have offline message overlay.
@@ skipping 143 matching lines @@
       var offlineMessage = this;
       var isOnline = (state == NET_STATE.ONLINE);
       var isUnderCaptivePortal = (state == NET_STATE.PORTAL);
       var isProxyError = reason == ERROR_REASONS.PROXY_AUTH_CANCELLED ||
           reason == ERROR_REASONS.PROXY_CONNECTION_FAILED;
       var shouldOverlay = MANAGED_SCREENS.indexOf(currentScreen.id) != -1 &&
           !currentScreen.isLocal;
       var isTimeout = false;
       var isShown = !offlineMessage.classList.contains('hidden') &&
           !offlineMessage.classList.contains('faded');
+      var currentScreenReloaded = false;
 
       if (reason == ERROR_REASONS.PROXY_CONFIG_CHANGED && shouldOverlay &&
-          isShown) {
+          !currentScreenReloaded) {
         // Schedules a immediate retry.
         currentScreen.doReload();
+        currentScreenReloaded = true;
         console.log('Retry page load since proxy settings has been changed');
       }
 
       // Fake portal state for loading timeout.
       if (reason == ERROR_REASONS.LOADING_TIMEOUT) {
         isOnline = false;
         isUnderCaptivePortal = true;
         isTimeout = true;
       }
 
@@ skipping 92 matching lines @@
             offlineMessage.classList.add('hidden');
           }
 
           currentScreen.classList.remove('hidden');
           currentScreen.classList.remove('faded');
 
           if (Oobe.getInstance().isNewOobe())
             Oobe.getInstance().updateInnerContainerSize_(currentScreen);
 
           // Forces a reload for Gaia screen on hiding error message.
-          if (currentScreen.id == 'gaia-signin')
+          if (currentScreen.id == 'gaia-signin' && !currentScreenReloaded) {
             currentScreen.doReload();
+            currentScreenReloaded = true;
+          }
         }
       }
     },
 
     // Request network state update with loading timeout as reason.
     showLoadingTimeoutError: function() {
       // Shows error message if it is not shown already.
       if (this.classList.contains('hidden')) {
         chrome.send('loginRequestNetworkState',
                     ['login.ErrorMessageScreen.updateState',
@@ skipping 60 matching lines @@
    * via template.
    */
   ErrorMessageScreen.updateLocalizedContent = function() {
     $('error-message').updateLocalizedContent_();
   };
 
   return {
     ErrorMessageScreen: ErrorMessageScreen
   };
 });