anchor.diff:    }
   
     static void _dispatchEvent(sky.Event e) {
  -    UINode target = SkyNodeWrapper._getMounted(bridgeEventTargetToRenderNode(e.target));
  +    UINode target = RenderNodeWrapper._getMounted(bridgeEventTargetToRenderNode(e.target));
   
       // TODO(rafaelw): StopPropagation?
       while (target != null) {
  
positive.code:     }
      _root.updateInlineStyle(inlineStyle);
  
      _syncChildren(oldSkyElementWrapper);
    }
  
    void _syncChildren(SkyElementWrapper oldSkyElementWrapper) {
      if (_root is! RenderCSSContainer)
        return;
  
      var startIndex = 0;
      var endIndex = children.length;
  
      var oldChildren = oldSkyElementWrapper.children;
      var oldStartIndex = 0;
      var oldEndIndex = oldChildren.length;
  
  
negative.code:   }
  }
  
  class FillStackContainer extends OneChildListRenderNodeWrapper {
  
    RenderCSSStack _root;
    RenderCSSStack _createNode() => new RenderCSSStack(this);
  
    static final FillStackContainer _emptyContainer = new FillStackContainer();
  
    RenderNodeWrapper get _emptyNode => _emptyContainer;
  
    FillStackContainer({
      Object key,
  