Implement inline signin with iframe

chrome/browser/resources/gaia_auth/inline_injected.js

-// Copyright 2013 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 Code injected into Gaia sign in page for inline sign in flow.
- * On load stop, it receives a message from the embedder extension with a
- * JavaScript reference to the embedder window. Then upon submit of the sign
- * in form, it posts the username and password to the embedder window.
- * Prototype Only.
- */
-
-(function() {
-  var extWindow;
-
-  var $ = function(id) { return document.getElementById(id); };
-  var gaiaLoginForm = $('gaia_loginform');
-
-  var onMessage = function(e) {
-    extWindow = e.source;
-  };
-  window.addEventListener('message', onMessage);
-
-  var onLoginSubmit = function(e) {
-    if (!extWindow) {
-      console.log('ERROR: no initial message received from the gaia ext');
-      e.preventDefault();
-      return;
-    }
-
-    var checkboxElement = $('advanced-box');
-    var chooseWhatToSync = checkboxElement && checkboxElement.checked;
-    var msg = {method: 'attemptLogin',
-               email: gaiaLoginForm['Email'].value,
-               password: gaiaLoginForm['Passwd'].value,
-               attemptToken: new Date().getTime(),
-               chooseWhatToSync: chooseWhatToSync};
-
-    extWindow.postMessage(msg, 'chrome://chrome-signin');
-    console.log('Credentials sent');
-
-    return;
-  };
-  // Overrides the submit handler for the gaia login form.
-  gaiaLoginForm.onsubmit = onLoginSubmit;
-})();