Converted Observatory vm-nav-menu element

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

Index: runtime/observatory/lib/src/mocks/objects/event.dart
diff --git a/runtime/observatory/lib/src/mocks/objects/event.dart b/runtime/observatory/lib/src/mocks/objects/event.dart
new file mode 100644
index 0000000000000000000000000000000000000000..88db5189a60f1944a6f268707879ccfe773d0e6a
--- /dev/null
+++ b/runtime/observatory/lib/src/mocks/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 mocks;
+
+class VMUpdateEventMock implements M.VMUpdateEvent {
+  final M.VMRef vm;
+  const VMUpdateEventMock({this.vm});
+}