[Signin Error Dialog] (1/3) Adds necessary web components

chrome/browser/resources/sync_confirmation/sync_confirmation.js

-/* Copyright 2015 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. */
-
-cr.define('sync.confirmation', function() {
-  'use strict';
-
-  function onConfirm(e) {
-    chrome.send('confirm');
-  }
-
-  function onUndo(e) {
-    chrome.send('undo');
-  }
-
-  function onGoToSettings(e) {
-    chrome.send('goToSettings');
-  }
-
-  function initialize() {
-    document.addEventListener('keydown', onKeyDown);
-    $('confirmButton').addEventListener('click', onConfirm);
-    $('undoButton').addEventListener('click', onUndo);
-    $('settingsLink').addEventListener('click', onGoToSettings);
-    $('profile-picture').addEventListener('load', onPictureLoaded);
-    chrome.send('initializedWithSize', [document.body.scrollHeight]);
-  }
-
-  function clearFocus() {
-    document.activeElement.blur();
-  }
-
-  function setUserImageURL(url) {
-    $('profile-picture').src = url;
-  }
-
-  function onPictureLoaded(e) {
-    $('picture-container').classList.add('loaded');
-  }
-
-  function onKeyDown(e) {
-    // If the currently focused element isn't something that performs an action
-    // on "enter" being pressed and the user hits "enter", perform the default
-    // action of the dialog, which is "OK, Got It".
-    if (e.key == 'Enter' &&
-        !/^(A|PAPER-BUTTON)$/.test(document.activeElement.tagName)) {
-      $('confirmButton').click();
-      e.preventDefault();
-    }
-  }
-
-  return {
-    clearFocus: clearFocus,
-    initialize: initialize,
-    setUserImageURL: setUserImageURL
-  };
-});
-
-document.addEventListener('DOMContentLoaded', sync.confirmation.initialize);