GTTF: convert some tests in chrome to use EmbeddedTestServer patch nr 1

chrome/test/data/extensions/platform_apps/web_view/focus/embedder.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 embedder = {};
 embedder.tests = {};
 embedder.baseGuestURL = '';
 embedder.guestURL = '';
 
 embedder.setUp = function(config) {
   embedder.baseGuestURL = 'http://localhost:' + config.testServer.port;
   embedder.guestURL = embedder.baseGuestURL +
-      '/files/extensions/platform_apps/web_view/focus' +
+      '/extensions/platform_apps/web_view/focus' +
       '/guest.html';
   chrome.test.log('Guest url is: ' + embedder.guestURL);
 };
 
 /** @private */
 embedder.setUpGuest_ = function() {
   document.querySelector('#webview-tag-container').innerHTML =
       '<webview style="width: 100px; height: 100px;"></webview>';
   var webview = document.querySelector('webview');
   if (!webview) {
@@ skipping 77 matching lines @@
 
 onload = function() {
   chrome.test.getConfig(function(config) {
     embedder.setUp(config);
     chrome.test.runTests([
       embedder.tests.testFocusEvent,
       embedder.tests.testBlurEvent
     ]);
   });
 };