anchor.diff:  
     static const String _PRIORITY = '';
     
  +  final ReflowManager reflowManager = new ReflowManager();
     final Element _element;
     final List<String> _dirtyProperties = <String>[];
     final List<String> _dirtyValues = <String>[];
  
positive.code:   CssStyleDeclaration _detachedElement;
    
    _ElementCSSMap(this._element) {
      final CssStyleDeclaration matchCSS = ReflowManager._instance._cssStyles[_element];
      
      if (matchCSS == null) _detachedElement = ReflowManager._instance._cssStyles[_element] = new CssStyleDeclaration()..cssText = _element.style.cssText;
      else _detachedElement = matchCSS..cssText = _element.style.cssText;
    }
    
  
negative.code:     
      return result;
    }
    
    //---------------------------------
    //
    // Singleton Constructor
    //
    //---------------------------------
    
    ReflowManager._internal();
  
    //---------------------------------
    //
    // Constructor
    //
    //---------------------------------
    
    static final ReflowManager _reflowManager = new ReflowManager._internal();
  
    factory ReflowManager() => _reflowManager;
  
    //-----------------------------------
    //
  