cros: Fix API 'add' password and complete auth racing

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 145 matching lines @@
     this.needPassword = true;
     this.samlHandler_.addEventListener(
         'insecureContentBlocked',
         this.onInsecureContentBlocked_.bind(this));
     this.samlHandler_.addEventListener(
         'authPageLoaded',
         this.onAuthPageLoaded_.bind(this));
     this.samlHandler_.addEventListener(
         'videoEnabled',
         this.onVideoEnabled_.bind(this));
+    this.samlHandler_.addEventListener(
+        'apiPasswordAdded',
+        this.onSamlApiPasswordAdded_.bind(this));
 
     this.webview_.addEventListener('droplink', this.onDropLink_.bind(this));
     this.webview_.addEventListener(
         'newwindow', this.onNewWindow_.bind(this));
     this.webview_.addEventListener(
         'contentload', this.onContentLoad_.bind(this));
     this.webview_.addEventListener(
         'loadabort', this.onLoadAbort_.bind(this));
     this.webview_.addEventListener(
         'loadstop', this.onLoadStop_.bind(this));
@@ skipping 572 matching lines @@
 
   /**
    * Invoked when |samlHandler_| fires 'videoEnabled' event.
    * @private
    */
   Authenticator.prototype.onVideoEnabled_ = function(e) {
     this.videoEnabled = true;
   };
 
   /**
+   * Invoked when |samlHandler_| fires 'apiPasswordAdded' event.
+   * @private
+   */
+  Authenticator.prototype.onSamlApiPasswordAdded_ = function(e) {
+    // Saml API 'add' password might be received after the 'loadcommit' event.
+    // In such case, maybeCompleteAuth_ should be attempted again if oauth code
+    // is available.
+    if (this.oauthCode_)
+      this.maybeCompleteAuth_();
+  };
+
+  /**
    * Invoked when a link is dropped on the webview.
    * @private
    */
   Authenticator.prototype.onDropLink_ = function(e) {
     this.dispatchEvent(new CustomEvent('dropLink', {detail: e.url}));
   };
 
   /**
    * Invoked when the webview attempts to open a new window.
    * @private
@@ skipping 105 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
   };
 });