Centralized event streams

runtime/observatory/tests/observatory_ui/mocks/objects/isolate.dart

 // 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
+// BSD-style license that can be found in the LICENSE file.
 
 part of mocks;
 
 class IsolateRefMock implements M.IsolateRef {
   final String id;
   final int number;
   final String name;
 
   const IsolateRefMock({this.id, this.number, this.name});
 }
 
 class IsolateMock implements M.Isolate {
   final String id;
   final int number;
   final String name;
   final DateTime startTime;
   final bool runnable;
 
   const IsolateMock({this.id, this.number, this.name, this.startTime,
       this.runnable});
   // TODO(cbernaschina) add other properties.
 }