Add WebSockets to Observatory.

runtime/bin/vmservice/client/lib/src/elements/io_view.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 io_view_element;
 
 import 'dart:async';
 import 'observatory_element.dart';
 import 'service_ref.dart';
 import 'package:observatory/service.dart';
@@ skipping 81 matching lines @@
 class IOSocketViewElement extends ObservatoryElement {
   @published ServiceMap socket;
 
   IOSocketViewElement.created() : super.created();
 
   void refresh(var done) {
     socket.reload().whenComplete(done);
   }
 }
 
+@CustomTag('io-web-socket-ref')
+class IOWebSocketRefElement extends ServiceRefElement {
+  IOWebSocketRefElement.created() : super.created();
+}
+
+@CustomTag('io-web-socket-list-view')
+class IOWebSocketListViewElement extends ObservatoryElement {
+  @published ServiceMap list;
+
+  IOWebSocketListViewElement.created() : super.created();
+
+  void refresh(var done) {
+    list.reload().whenComplete(done);
+  }
+}
+
+@CustomTag('io-web-socket-view')
+class IOWebSocketViewElement extends ObservatoryElement {
+  @published ServiceMap webSocket;
+
+  IOWebSocketViewElement.created() : super.created();
+
+  void refresh(var done) {
+    webSocket.reload().whenComplete(done);
+  }
+}
+
 @CustomTag('io-random-access-file-list-view')
 class IORandomAccessFileListViewElement extends ObservatoryElement {
   @published ServiceMap list;
 
   IORandomAccessFileListViewElement.created() : super.created();
 
   void refresh(var done) {
     list.reload().whenComplete(done);
   }
 }
@@ skipping 82 matching lines @@
     _updateTimer = new Timer(new Duration(seconds: 1), _updateFile);
   }
 
   void leftView() {
     super.leftView();
     if (_updateTimer != null) {
       _updateTimer.cancel();
       _updateTimer = null;
     }
   }
-}
+}