Upstream service worker "register" tests to WPT

third_party/WebKit/LayoutTests/external/wpt/service-workers/service-worker/resources/register-foreign-fetch-errors-worker.js

 self.addEventListener('install', function(event) {
     var scope = registration.scope;
     var scope_url = new URL(scope);
 
     test(function() {
         assert_throws(new TypeError(), function() {
             event.registerForeignFetch({});
           });
       }, 'Invalid options');
 
@@ skipping 113 matching lines @@
     test(function() {
         assert_throws(new TypeError(), function() {
             event.registerForeignFetch({scopes: [scope],
                                         origins: ['https://example.com/', '*']});
           });
       }, 'Origins includes other strings and wildcard');
   });
 
 // Import testharness after install handler to make sure our install handler
 // runs first. Otherwise only one test will run.
-importScripts('../../resources/testharness.js');
+importScripts('/resources/testharness.js');