Dart: Adds optional named arguments for creating bindings.

mojo/public/dart/src/stub.dart

 // Copyright 2014 The Chromium Authors. 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 bindings;
 
 abstract class Stub extends core.MojoEventStreamListener {
   int _outstandingResponseFutures = 0;
   bool _isClosing = false;
 
-  Stub(core.MojoMessagePipeEndpoint endpoint) : super(endpoint);
+  Stub.fromEndpoint(core.MojoMessagePipeEndpoint endpoint, {bool doListen: true,
+      Function onClosed})
+      : super.fromEndpoint(endpoint, doListen: doListen, onClosed: onClosed);
 
-  Stub.fromHandle(core.MojoHandle handle) : super.fromHandle(handle);
+  Stub.fromHandle(core.MojoHandle handle, {bool doListen: true,
+      Function onClosed})
+      : super.fromHandle(handle, doListen: doListen, onClosed: onClosed);
 
   Stub.unbound() : super.unbound();
 
   Future<Message> handleMessage(ServiceMessage message);
 
   void handleRead() {
     // Query how many bytes are available.
     var result = endpoint.query();
     assert(result.status.isOk || result.status.isResourceExhausted);
     if (result.bytesRead == 0) {
@@ skipping 63 matching lines @@
   Message buildResponse(Struct response, int name) {
     var header = new MessageHeader(name);
     return response.serializeWithHeader(header);
   }
 
   Message buildResponseWithId(Struct response, int name, int id, int flags) {
     var header = new MessageHeader.withRequestId(name, flags, id);
     return response.serializeWithHeader(header);
   }
 }