Added chrome switch that lets tests override URL path, moved GAIA auth extension from CrOS

chrome/browser/resources/chromeos/login/screen_gaia_signin.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 Oobe signin screen implementation.
  */
 
 cr.define('login', function() {
   // Gaia loading time after which portal check should be fired.
@@ skipping 170 matching lines @@
       // Offline sign-in is only allowed for the case when users aren't shown
       // because there is no other way for an user to enter when device is
       // offline.
       this.isOfflineAllowed = !data.isShowUsers;
 
       this.updateAuthExtension_(data);
 
       var params = [];
       if (data.gaiaOrigin)
         params.push('gaiaOrigin=' + encodeURIComponent(data.gaiaOrigin));
+      if (data.gaiaUrlPath)
+        params.push('gaiaUrlPath=' + encodeURIComponent(data.gaiaUrlPath));
       if (data.hl)
         params.push('hl=' + encodeURIComponent(data.hl));
       if (data.localizedStrings) {
         var strings = data.localizedStrings;
         for (var name in strings) {
           params.push(name + '=' + encodeURIComponent(strings[name]));
         }
       }
       if (data.email)
         params.push('email=' + encodeURIComponent(data.email));
       if (data.test_email)
         params.push('test_email=' + encodeURIComponent(data.test_email));
       if (data.test_password)
         params.push('test_password=' + encodeURIComponent(data.test_password));
 
       var url = data.startUrl;
       if (params.length)
         url += '?' + params.join('&');
 
       if (data.forceReload || this.extensionUrl_ != url) {
-        console.log('Opening extension: ' + data.startUrl +
+        console.log('Opening extension: ' + data.url +
                     ', opt_email=' + data.email);
 
         this.error_ = 0;
         this.frame_.src = url;
         this.extensionUrl_ = url;
 
         this.loading = true;
         this.clearRetry_();
         this.startLoadingTimer_();
       } else if (this.loading) {
@@ skipping 203 matching lines @@
    * @param {Object} data New extension parameters bag.
    */
   GaiaSigninScreen.updateAuthExtension = function(data) {
     $('gaia-signin').updateAuthExtension_(data);
   };
 
   return {
     GaiaSigninScreen: GaiaSigninScreen
   };
 });