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

chrome/test/data/extensions/api_test/incognito/split/background.js

Index: chrome/test/data/extensions/api_test/incognito/split/background.js
diff --git a/chrome/test/data/extensions/api_test/incognito/split/background.js b/chrome/test/data/extensions/api_test/incognito/split/background.js
index 40fabbd857fb32458e5b81cb24b4b90c820787cb..8492c1e80e27e51f1225c44e079d085eae59afac 100644
--- a/chrome/test/data/extensions/api_test/incognito/split/background.js
+++ b/chrome/test/data/extensions/api_test/incognito/split/background.js
@@ -88,7 +88,7 @@ chrome.test.getConfig(function(config) {
     // Tests content script injection to verify that the script can tell its
     // in incongnito.
     function contentScriptTestIncognito() {
-      var testUrl = "http://localhost:PORT/files/extensions/test_file.html"
+      var testUrl = "http://localhost:PORT/extensions/test_file.html"
                         .replace(/PORT/, config.testServer.port);
 
       // Test that chrome.extension.inIncognitoContext is true for incognito