Converted Observatory isolate-ref element

runtime/observatory/lib/src/models/objects/event.dart

Index: runtime/observatory/lib/src/models/objects/event.dart
diff --git a/runtime/observatory/lib/src/models/objects/event.dart b/runtime/observatory/lib/src/models/objects/event.dart
new file mode 100644
index 0000000000000000000000000000000000000000..9d4f3677ee5b840e83b604b6dae3d8234cb7f503
--- /dev/null
+++ b/runtime/observatory/lib/src/models/objects/event.dart
@@ -0,0 +1,10 @@
+// Copyright (c) 2016, 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
+
+part of models;
+
+abstract class IsolateUpdateEvent {
+  DateTime get timestamp;
+  IsolateRef get isolate;
+}