Increase the default test timeout for scheduled tests on Windows.

pkg/scheduled_test/test/scheduled_server_test.dart

 // Copyright (c) 2013, 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.
 
 library scheduled_server_test;
 
 import 'dart:async';
 import 'dart:io';
 
 import 'package:http/http.dart' as http;
 import 'package:scheduled_test/scheduled_server.dart';
 import 'package:scheduled_test/scheduled_test.dart';
 import 'package:scheduled_test/src/mock_clock.dart' as mock_clock;
 
 import 'metatest.dart';
 import 'utils.dart';
 
 void main() {
+  metaSetUp(() {
+    // The windows bots are very slow, so we increase the default timeout.
+    if (Platform.operatingSystem != "windows") return;
+    currentSchedule.timeout = new Duration(seconds: 10);
+  });
+
   expectTestsPass("a server with no handlers does nothing", () {
     test('test', () => new ScheduledServer());
   });
 
   expectTestsPass("a server with no handlers that receives a request throws an "
       "error", () {
     var errors;
     test('test 1', () {
       currentSchedule.onException.schedule(() {
         errors = currentSchedule.errors;
@@ skipping 311 matching lines @@
       // issue 9151 is fixed.
       expect(errors.length, inInclusiveRange(2, 3));
       expect(errors[0].error, equals('oh no'));
       expect(errors[1].error, new isInstanceOf<HttpParserException>());
       if (errors.length > 2) {
         expect(errors[2].error, new isInstanceOf<HttpParserException>());
       }
     });
   }, passing: ['test 2']);
 }