Put back code that was incorrectly removed in r342867.

chrome/browser/resources/gaia_auth_host/authenticator.js

 // Copyright 2014 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.
 
 <include src="saml_handler.js">
 
 /**
  * @fileoverview An UI component to authenciate to Chrome. The component hosts
  * IdP web pages in a webview. A client who is interested in monitoring
  * authentication events should pass a listener object of type
@@ skipping 494 matching lines @@
    * @param {object} e Payload of the received HTML5 message.
    * @private
    */
   Authenticator.prototype.onMessageFromWebview_ = function(e) {
     if (!this.isGaiaMessage(e))
       return;
 
     var msg = e.data;
     if (msg.method == 'attemptLogin') {
       this.email_ = msg.email;
+      if (this.authMode == AuthMode.DESKTOP)
+        this.password_ = msg.password;
+
       this.chooseWhatToSync_ = msg.chooseWhatToSync;
       // We need to dispatch only first event, before user enters password.
       this.dispatchEvent(
           new CustomEvent('attemptLogin', {detail: msg.email}));
     } else if (msg.method == 'dialogShown') {
       this.dispatchEvent(new Event('dialogShown'));
     } else if (msg.method == 'dialogHidden') {
       this.dispatchEvent(new Event('dialogHidden'));
     } else if (msg.method == 'backButton') {
       this.dispatchEvent(new CustomEvent('backButton', {detail: msg.show}));
@@ skipping 242 matching lines @@
   Authenticator.AuthMode = AuthMode;
   Authenticator.SUPPORTED_PARAMS = SUPPORTED_PARAMS;
 
   return {
     // TODO(guohui, xiyuan): Rename GaiaAuthHost to Authenticator once the old
     // iframe-based flow is deprecated.
     GaiaAuthHost: Authenticator,
     Authenticator: Authenticator
   };
 });