Index: samples/tracker/web/task_form_element.dart |
diff --git a/samples/tracker/web/task_form_element.dart b/samples/tracker/web/task_form_element.dart |
index 83aff8e7de5130630c0dc4c0e792e995baef3c44..fde294cf387e60622e84a743667ccac91521087d 100644 |
--- a/samples/tracker/web/task_form_element.dart |
+++ b/samples/tracker/web/task_form_element.dart |
@@ -10,7 +10,7 @@ import 'dart:html'; |
import 'dart:math'; |
@CustomTag('task-form-element') |
-class TaskFormElement extends PolymerElement with ObservableMixin { |
+class TaskFormElement extends PolymerElement with Observable { |
bool get applyAuthorStyles => true; |
@observable Task task; |
@observable String titleErrorMessage = ''; |