Remove spawnDomFunction from dart:html

samples/isolate_html/isolate_sample.css

-/* 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. */
-
-#appTitle {
-  font-size: 20px;
-}
-
-.isolate {
-  border: 2px solid green;
-  margin: 20px;
-  width: 400px;
-  height: 200px;
-  padding: 10px;
-}
-
-#isolateTemplate {
-  display: none;
-}
-
-.isolateMain {
-  background-image: -webkit-gradient(linear,left bottom,right top,from(white),to(lightgray));
-}
-
-.isolateA {
-  background-image: -webkit-gradient(linear,left bottom,right top,from(lightgreen),to(lightgray));
-}
-
-.isolateB {
-  background-image: -webkit-gradient(linear,left bottom,right top,from(#0099FF),to(lightgray));
-}
-
-.isolateTitle {
-  font-size: 20px;
-}
-
-.messageBox {
-  padding: 2px;
-  border: 1px solid black;
-  background: white;
-  height: 50%;
-}
-
-.messageText {
-  font-weight: bold;
-}
-
-.replyText {
-  font-size: 18px;
-  font-weight: bold;
-  margin-top: 10px;
-}
-
-#greetingText {
-  margin-top: 15px;
-}
-
-.delayTextbox {
-  width: 60px;
-  text-align: right;
-}
-
-.spacer {
-  margin-top: 50px;
-}
-
-.systemInfo {
-  font-size: 14px;
-}
-
-#vmStatus {
-  font-weight: bold;
-}
-
-.chirpButton {
-  float: right;
-}