Remove race(s) in vmservice tests.

runtime/bin/vmservice/running_isolate.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.
 
 part of vmservice;
 
 class RunningIsolate implements ServiceRequestRouter {
   final SendPort sendPort;
-  String name = 'Unknown';
+  final String name;
 
-  RunningIsolate(this.sendPort);
+  RunningIsolate(this.sendPort, this.name);
 
   Future sendMessage(List request) {
     final completer = new Completer.sync();
     final receivePort = new ReceivePort();
     sendServiceMessage(sendPort, receivePort, request);
     receivePort.receive((value, ignoreReplyTo) {
       receivePort.close();
       if (value is Exception) {
         completer.completeError(value);
       } else {
         completer.complete(value);
       }
     });
     return completer.future;
   }
 
   Future route(ServiceRequest request) {
     // Send message to isolate.
     var message = request.toServiceCallMessage();
     return sendMessage(message).then((response) {
       request.setResponse(response);
       return new Future.value(request);
     });
   }
-
-  void _sendNameRequest() {
-    var request = new ServiceRequest();
-    request.parse(Uri.parse('/name'));
-    sendMessage(request.toServiceCallMessage()).then(_handleNameResponse);
-  }
-
-  void _handleNameResponse(String responseString) {
-    try {
-      var response = JSON.parse(responseString);
-      name = response['name'];
-    } catch (e) {
-      name = 'Error retrieving isolate name.';
-      return;
-    }
-    if (name == null) {
-      name = 'Error retrieving isolate name.';
-    }
-  }
 }