Added DOM MessagePort support.

client/dom/generated/monkey_dom.js

 // Copyright (c) 2011, 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.
 
 // DO NOT EDIT
 // Auto-generated Dart DOM implementation.
 
 function DOM$EnsureDartNull(value) {
   return value === null ? (void 0) : value;
 }
@@ skipping 4075 matching lines @@
     c.prototype.messagePort$getter = function() { return DOM$EnsureDartNull(this.messagePort); };
     c.prototype.origin$getter = function() { return DOM$EnsureDartNull(this.origin); };
     c.prototype.source$getter = function() { return DOM$EnsureDartNull(this.source); };
   }
   DOM$fixMembers(c, ['initMessageEvent']);
   c.$implements$MessageEvent$Dart = 1;
   c.$implements$Event$Dart = 1;
 }
 function DOM$fixClass$MessagePort(c) {
   if (c.prototype) {
+    c.prototype.onmessage$getter = function() { return DOM$EnsureDartNull(this.onmessage); };
+    c.prototype.onmessage$setter = function(value) { this.onmessage = value; };
   }
+  DOM$fixMembers(c, [
+    'addEventListener',
+    'close',
+    'dispatchEvent',
+    'postMessage',
+    'removeEventListener',
+    'start',
+    'webkitPostMessage']);
   c.$implements$MessagePort$Dart = 1;
   c.$implements$EventTarget$Dart = 1;
 }
 function DOM$fixClass$Metadata(c) {
   if (c.prototype) {
     c.prototype.modificationTime$getter = function() { return DOM$EnsureDartNull(this.modificationTime); };
   }
   c.$implements$Metadata$Dart = 1;
 }
 function DOM$fixClass$MetadataCallback(c) {
@@ skipping 3026 matching lines @@
 function native__NativeDomGlobalProperties_getWindow() {
   // TODO: Should the window be obtained from an isolate?
   return window;
 }
 
 // Declared in src/GlobalProperties.dart
 function native__NativeDomGlobalProperties_getDocument() {
   // TODO: Should the window be obtained from an isolate?
   return window.document;
 }