Add IE support.

lib/src/runner/browser/server.dart

 // Copyright (c) 2015, 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 test.runner.browser.server;
 
 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 
@@ skipping 10 matching lines @@
 import '../../util/io.dart';
 import '../../util/path_handler.dart';
 import '../../util/one_off_handler.dart';
 import '../../utils.dart';
 import '../application_exception.dart';
 import '../load_exception.dart';
 import 'browser.dart';
 import 'browser_manager.dart';
 import 'compiler_pool.dart';
 import 'chrome.dart';
+import 'content_shell.dart';
 import 'dartium.dart';
-import 'content_shell.dart';
 import 'firefox.dart';
+import 'internet_explorer.dart';
 import 'phantom_js.dart';
 import 'safari.dart';
 
 /// A server that serves JS-compiled tests to browsers.
 ///
 /// A test suite may be loaded for a given file using [loadSuite].
 class BrowserServer {
   /// Starts the server.
   ///
   /// [root] is the root directory that the server should serve. It defaults to
@@ skipping 338 matching lines @@
 
   /// Starts the browser identified by [browser] and has it load [url].
   Browser _newBrowser(Uri url, TestPlatform browser) {
     switch (browser) {
       case TestPlatform.dartium: return new Dartium(url);
       case TestPlatform.contentShell: return new ContentShell(url);
       case TestPlatform.chrome: return new Chrome(url);
       case TestPlatform.phantomJS: return new PhantomJS(url);
       case TestPlatform.firefox: return new Firefox(url);
       case TestPlatform.safari: return new Safari(url);
+      case TestPlatform.internetExplorer: return new InternetExplorer(url);
       default:
         throw new ArgumentError("$browser is not a browser.");
     }
   }
 
   /// Closes the server and releases all its resources.
   ///
   /// Returns a [Future] that completes once the server is closed and its
   /// resources have been fully released.
   Future close() {
@@ skipping 13 matching lines @@
       if (_pubServeUrl == null) {
         new Directory(_compiledDir).deleteSync(recursive: true);
       } else {
         _http.close();
       }
 
       _closeCompleter.complete();
     }).catchError(_closeCompleter.completeError);
   }
 }