Format all tests.

tests/lib_strong/html/worker_api_test.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 import 'dart:html';
 import 'dart:isolate';
 
 import 'package:unittest/unittest.dart';
 import 'package:unittest/html_config.dart';
 
 worker(message) {
   var uri = message[0];
   var replyTo = message[1];
   try {
     var url = Url.createObjectUrl(new Blob([''], 'application/javascript'));
     Url.revokeObjectUrl(url);
     replyTo.send('Hello from Worker');
   } catch (e) {
     replyTo.send('Error: $e');
   }
 }
 
 main() {
   useHtmlConfiguration();
 
   test('Use Worker API in Worker', () {
     var response = new ReceivePort();
     var remote = Isolate.spawn(worker, ['', response.sendPort]);
-    remote.then((_) => response.first)
-        .then(expectAsync((reply) => expect(reply, equals('Hello from Worker'))));
+    remote.then((_) => response.first).then(
+        expectAsync((reply) => expect(reply, equals('Hello from Worker'))));
   });
 }