Use HTML messages to inform GAIA about deviceId.

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
   // lazy portal check should be fired.
   /** @const */ var GAIA_LOADING_PORTAL_SUSSPECT_TIME_SEC = 7;
 
   // Maximum Gaia loading time in seconds.
   /** @const */ var MAX_GAIA_LOADING_TIME_SEC = 60;
 
   /** @const */ var HELP_TOPIC_ENTERPRISE_REPORTING = 2535613;
 
   // The help topic regarding user not being in the whitelist.
   /** @const */ var HELP_CANT_ACCESS_ACCOUNT = 188036;
 
   return {
     EXTERNAL_API: [
       'loadAuthExtension',
       'updateAuthExtension',
       'doReload',
       'onWebviewError',
       'onFrameError',
       'updateCancelButtonState',
-      'showWhitelistCheckFailedError'
+      'showWhitelistCheckFailedError',
+      'updateDeviceId',
     ],
 
     /**
      * Frame loading error code (0 - no error).
      * @type {number}
      * @private
      */
     error_: 0,
 
     /**
@@ skipping 83 matching lines @@
       this.gaiaAuthHost_.addEventListener(
           'ready', this.onAuthReady_.bind(this));
       this.gaiaAuthHost_.addEventListener(
           'dialogShown', this.onDialogShown_.bind(this));
       this.gaiaAuthHost_.addEventListener(
           'dialogHidden', this.onDialogHidden_.bind(this));
       this.gaiaAuthHost_.addEventListener(
           'backButton', this.onBackButton_.bind(this));
       this.gaiaAuthHost_.addEventListener(
           'showView', this.onShowView_.bind(this));
+      this.gaiaAuthHost_.addEventListener('attemptLogin',
+                                          this.onAttemptLogin_.bind(this));
       this.gaiaAuthHost_.confirmPasswordCallback =
           this.onAuthConfirmPassword_.bind(this);
       this.gaiaAuthHost_.noPasswordCallback =
           this.onAuthNoPassword_.bind(this);
       this.gaiaAuthHost_.insecureContentBlockedCallback =
           this.onInsecureContentBlocked_.bind(this);
       this.gaiaAuthHost_.missingGaiaInfoCallback =
           this.missingGaiaInfo_.bind(this);
       this.gaiaAuthHost_.samlApiUsedCallback =
           this.samlApiUsed_.bind(this);
@@ skipping 396 matching lines @@
 
     /**
      * Invoked when the auth host emits 'showView' event.
      * @private
      */
     onShowView_: function(e) {
       $('signin-frame').classList.add('show');
     },
 
     /**
+     * Invoked when the auth host emits 'attemptLogin' event.

[Nikita (slow), 2015/04/22 16:51:52]

nit: Add information about parameter.

[Alexander Alekseev, 2015/04/22 17:58:07]

Done.

+     * @private
+     */
+    onAttemptLogin_: function(e) {
+      chrome.send('attemptLogin', [e.detail]);
+    },
+
+    /**
      * Invoked when the user has successfully authenticated via SAML, the
      * principals API was not used and the auth host needs the user to confirm
      * the scraped password.
      * @param {number} passwordCount The number of passwords that were scraped.
      * @private
      */
     onAuthConfirmPassword_: function(passwordCount) {
       this.loading = true;
       Oobe.getInstance().headerHidden = false;
 
@@ skipping 289 matching lines @@
             loadTimeData.getValue(isManaged ? 'whitelistErrorEnterprise' :
                                               'whitelistErrorConsumer');
       }
 
       this.classList.toggle('whitelist-error', show);
       this.loading = !show;
 
       if (!show)
         Oobe.showSigninUI();
     },
+
+    /**
+     * Inform Gaia of new deviceId.
+     * @param {data} Object like {'deviceId': 'test-device-id'}
+     */
+    updateDeviceId: function(data) {
+      if (!this.isNewGaiaFlow)
+        return;
+
+      if (data && data.deviceId)
+        this.gaiaAuthHost_.updateDeviceId(data.deviceId);
+    },
   };
 });