Removing all Worker-related APIs

tests/html/worker_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 worker_test;
+import '../../pkg/unittest/lib/unittest.dart';
+import '../../pkg/unittest/lib/html_individual_config.dart';
+import 'dart:html';
+
+main() {
+  useHtmlIndividualConfiguration();
+
+  group('supported', () {
+    test('supported', () {
+      expect(Worker.supported, isTrue);
+    });
+  });
+
+  var workerScript = '''postMessage('WorkerMessage');''';
+
+  group('functional', () {
+
+    test('unsupported', () {
+      var expectation = Worker.supported ? returnsNormally : throws;
+
+      expect(() {
+        new Worker('worker.js');
+      }, expectation);
+    });
+
+    test('works', () {
+      // Use Blob to make a local URL so we don't have to have a separate file.
+      var blob = new Blob([workerScript], 'text/javascript');
+      var url = Url.createObjectUrl(blob);
+      var worker = new Worker(url);
+      return worker.onMessage.first.then((e) {
+        expect(e.data, 'WorkerMessage');
+      });
+    });
+  });
+}
+