Host Chrome OS GAIA signin page in webview

chrome/browser/resources/gaia_auth_host/authenticator.js

Index: chrome/browser/resources/gaia_auth_host/authenticator.js
diff --git a/chrome/browser/resources/gaia_auth_host/authenticator.js b/chrome/browser/resources/gaia_auth_host/authenticator.js
index baf6d8e1a0667a4ea8982565d5d20972e8a03c64..101aaf05517d34b222826ea9a52b9fa938ef065b 100644
--- a/chrome/browser/resources/gaia_auth_host/authenticator.js
+++ b/chrome/browser/resources/gaia_auth_host/authenticator.js
@@ -19,6 +19,7 @@ cr.define('cr.login', function() {
   var SIGN_IN_HEADER = 'google-accounts-signin';
   var EMBEDDED_FORM_HEADER = 'google-accounts-embedded';
   var SAML_HEADER = 'google-accounts-saml';
+  var SERVICE_ID = 'chromeoslogin';
 
   /**
    * The source URL parameter for the constrained signin flow.
@@ -152,6 +153,8 @@ cr.define('cr.login', function() {
         ['responseHeaders']);
     window.addEventListener(
         'message', this.onMessage_.bind(this), false);
+
+    this.loaded_ = false;
   };
 
   /**
@@ -160,13 +163,14 @@ cr.define('cr.login', function() {
   Authenticator.prototype.reload = function() {
     this.webview_.src = this.reloadUrl_;
     this.authFlow_ = AuthFlow.DEFAULT;
+    this.loaded_ = false;
   };
 
   Authenticator.prototype.constructInitialFrameUrl_ = function(data) {
     var url = this.idpOrigin_ + (data.gaiaPath || IDP_PATH);
 
     url = appendParam(url, 'continue', this.continueUrl_);
-    url = appendParam(url, 'service', data.service);
+    url = appendParam(url, 'service', data.service || SERVICE_ID);
     if (data.hl)
       url = appendParam(url, 'hl', data.hl);
     if (data.email)
@@ -288,7 +292,7 @@ cr.define('cr.login', function() {
 
     this.listener_.onSuccess({email: this.email_,
                               gaiaId: this.gaiaId_,
-                              password: this.password_,
+                              password: this.password_ || '',
                               usingSAML: this.authFlow_ == AuthFlow.SAML,
                               chooseWhatToSync: this.chooseWhatToSync_,
                               skipForNow: this.skipForNow_,