Fix a promise_test misuse in http/tests/fetch/ layout tests

third_party/WebKit/LayoutTests/http/tests/fetch/script-tests/request.js

 if (self.importScripts) {
   importScripts('../resources/fetch-test-helpers.js');
 }
 
 var URL = 'https://www.example.com/test.html';
 
 test(function() {
     var headers = new Headers;
     headers.set('User-Agent', 'Mozilla/5.0');
     headers.set('Accept', 'text/html');
@@ skipping 487 matching lines @@
         'origin', 'kept original policy');
     assert_equals(new Request(r, {mode: 44}).referrerPolicy,
         '', 'cleared policy');
     assert_equals(new Request(r, {referrerPolicy: 'unsafe-url'}).referrerPolicy,
         'unsafe-url', 'overriden policy');
   }, 'Referrer policy should be cleared when any members are set');
 
 // Spec: https://fetch.spec.whatwg.org/#dom-request
 // Step 21:
 // If request's method is `GET` or `HEAD`, throw a TypeError.
-promise_test(function() {
+test(function() {
     var headers = new Headers;
     headers.set('Content-Language', 'ja');
     ['GET', 'HEAD'].forEach(function(method) {
         assert_throws(
           {name: 'TypeError'},
           function() {
             new Request(URL,
                         {method: method,
                          body: new Blob(['Test Blob'], {type: 'test/type'})
                         });
@@ skipping 294 matching lines @@
                            credentials: 'include',
                            body: 'this is a body'});
 
     return req.text()
         .then(t => {
            assert_equals(t, 'this is a body');
         });
   }, 'Credentials and body can both be set.');
 
 done();