anchor.diff:        _initialized = true;
       }
   
  -    isPolymer ? _dialog.element.toggle() : _dialog.show();
  +    isPolymer ? (_dialog.element as dynamic).toggle() : _dialog.show();
     }
   
     void _commit() {
  
positive.code: import 'package:chrome_gen/chrome_app.dart' as chrome;
  import 'package:chrome_gen/src/files.dart' as chrome_files;
  import 'package:logging/logging.dart';
  import 'package:spark_widgets/spark-overlay/spark-overlay.dart';
  
  import 'lib/ace.dart';
  import 'lib/actions.dart';
  
negative.code:       _dialog.element.querySelector("#message").text =
            "Are you sure you want to delete ${_resources.length} files?";
      }
      isPolymer ? (_dialog.element as dynamic).toggle() : _dialog.show();
    }
  
    void _commit() {
  