Revert "Parts must start with 'part of'" and "Attempt to fix VM build"

dart/samples/ui_lib/base/DomWrapper.dart

-part of base;
-
 // 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.
 
 /**
  * Embedded DSL for generating DOM elements.
  */
 class Dom {
   static void ready(void f()) {
     if (document.readyState == 'interactive' ||
         document.readyState == 'complete') {
       window.setTimeout(f, 0);
     } else {
       // TODO(jacobr): give this event a named property.
       window.on.contentLoaded.add((Event e) { f(); });
     }
   }
 
   /** Adds the given <style> text to the page. */
   static void addStyle(String cssText) {
     StyleElement style = new Element.tag('style');
     style.type = 'text/css';
     style.text = cssText;
     document.head.nodes.add(style);
   }
 }