Enable new dart:html wrapperless frog bindings and wrapper dartium bindings.

client/testing/unittest/dom_for_unittest.dart

-// 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.
-
-#library("dom_for_unittest");
-#native("dom_for_unittest.js");
-
-class Window {
-  Window();
-
-  void postMessage(String message, String origin) {
-    _postMessage(message, origin);
-  }
-
-  static void _postMessage(String message, String origin) native;
-}
-
-class HTMLDocument {
-  HTMLDocument();
-
-  HTMLBodyElement get body() { return new HTMLBodyElement(); }
-}
-
-class HTMLBodyElement {
-  HTMLBodyElement();
-
-  void set innerHTML(String html) {
-    _innerHTML(html);
-  }
-
-  static void _innerHTML(String html) native;
-}
-
-Window get window() { return new Window(); }
-HTMLDocument get document() { return new HTMLDocument(); }