This class wasn't used anyway. Removing as it causes errors due to recent VM changes.

client/html/release/html.dart

 #library('html');
 
 #import('dart:dom', prefix:'dom');
 // 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 HTML library.
 
@@ skipping 22915 matching lines @@
 interface ElementList extends List<Element> {
   // TODO(jacobr): add element batch manipulation methods.
   Element get first();
   // TODO(jacobr): add insertAt
 }
 
 class DeferredElementRect {
   // TODO(jacobr)
 }
 
-class ScrollOptions {
-  final int lines;
-  final int pages;
-  final bool center;
-
-  ScrollOptions([this.lines = 0, this.pages = 0, this.center = false]);
-}
-
 interface ElementEvents extends Events {
   EventListenerList get abort();
   EventListenerList get beforeCopy();
   EventListenerList get beforeCut();
   EventListenerList get beforePaste();
   EventListenerList get blur();
   EventListenerList get change();
   EventListenerList get click();
   EventListenerList get contextMenu();
   EventListenerList get copy();
@@ skipping 2373 matching lines @@
     for(Node element in this) {
       if (f(element)) {
         return true;
       }
     };
     return false;
   }
 
   /** @domName Node.hasChildNodes */
   bool isEmpty() {
-    return _node.hasChildNodes();
+    return !_node.hasChildNodes();
   }
 
   int get length() {
     return _childNodes.length;
   }
 
   Node operator [](int index) {
     return LevelDom.wrapNode(_childNodes[index]);
   }
 
@@ skipping 118 matching lines @@
   }
 
   Node remove() {
     // TODO(jacobr): should we throw an exception if parent is already null?
     if (_ptr.parentNode !== null) {
       _ptr.parentNode.removeChild(_ptr);
     }
     return this;
   }
 
-  /** @domName Node.contains */
+  /** @domName contains */
   bool contains(Node otherNode) {
     // TODO: Feature detect and use built in.
     while (otherNode != null && otherNode != this) {
       otherNode = otherNode.parent;
     }
     return otherNode == this;
   }
 
   // TODO(jacobr): remove when/if List supports a method similar to
   // insertBefore or we switch NodeList to implement LinkedList rather than
@@ skipping 2195 matching lines @@
     _ptr.setRequestHeader(header, value);
   }
 
   XMLHttpRequestEvents get on() {
     if (_on === null) {
       _on = new XMLHttpRequestEventsImplementation._wrap(_ptr);
     }
     return _on;
   }
 }