Revert "Identity API: Add component app for auth flow UI"

chrome/browser/resources/identity_scope_approval_dialog/scope_approval_dialog.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.
-
-var webview;
-
-/**
- * Points the webview to the starting URL of a scope authorization
- * flow, and unhides the dialog once the page has loaded.
- * @param {string} url The url of the authorization entry point.
- * @param {Object} win The dialog window that contains this page. Can
- *     be left undefined if the caller does not want to display the
- *     window.
- */
-function loadAuthUrlAndShowWindow(url, win) {
-  webview.src = url;
-  if (win) {
-    webview.addEventListener('loadstop', function() {
-      win.show();
-    });
-  }
-}
-
-document.addEventListener('DOMContentLoaded', function() {
-  webview = document.querySelector('webview');
-
-  document.querySelector('.titlebar-close-button').onclick = function() {
-    window.close();
-  };
-
-  chrome.identityPrivate.getResources(function(resources) {
-    var style = document.styleSheets[0];
-
-    function insertRule(selector, url) {
-      style.insertRule(selector + ' { background-image: url(' + url + '); }',
-                       style.cssRules.length);
-    }
-
-    insertRule('.titlebar-close-button', resources.IDR_CLOSE_DIALOG);
-    insertRule('.titlebar-close-button:hover', resources.IDR_CLOSE_DIALOG_H);
-    insertRule('.titlebar-close-button:active', resources.IDR_CLOSE_DIALOG_P);
-
-    document.title = resources.IDS_EXTENSION_PERMISSIONS_PROMPT_TITLE;
-  });
-});
-