Update frame around SAML IdP pages to new GAIA style

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.
  */
 
 login.createScreen('GaiaSigninScreen', 'gaia-signin', function() {
   // Gaia loading time after which error message must be displayed and
@@ skipping 320 matching lines @@
      * @param {Object} data Extension parameters bag.
      * @private
      */
     loadAuthExtension: function(data) {
       this.isNewGaiaFlow = data.useNewGaiaFlow;
       this.isLocal = data.isLocal;
       this.email = '';
 
       // Reset SAML
       this.classList.toggle('full-width', false);
+      if (Oobe.getInstance().currentScreen === this)
+        Oobe.getInstance().updateScreenSize(this);
       this.samlPasswordConfirmAttempt_ = 0;
 
       this.updateAuthExtension(data);
 
       var params = {};
       for (var i in cr.login.GaiaAuthHost.SUPPORTED_PARAMS) {
         var name = cr.login.GaiaAuthHost.SUPPORTED_PARAMS[i];
         if (data[name])
           params[name] = data[name];
       }
@@ skipping 498 matching lines @@
       }
 
       this.classList.toggle('whitelist-error', show);
       this.loading = !show;
 
       if (!show)
         Oobe.showSigninUI();
     },
   };
 });