Centralized event streams

runtime/observatory/lib/src/mocks/exceptions/connection_exception.dart

Index: runtime/observatory/lib/src/mocks/exceptions/connection_exception.dart
diff --git a/runtime/observatory/lib/src/mocks/exceptions/connection_exception.dart b/runtime/observatory/lib/src/mocks/exceptions/connection_exception.dart
deleted file mode 100644
index 127cb20833f6e4c93421e28a0ee27668b04277fe..0000000000000000000000000000000000000000
--- a/runtime/observatory/lib/src/mocks/exceptions/connection_exception.dart
+++ /dev/null
@@ -1,10 +0,0 @@
-// 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 ConnectionExceptionMock implements M.ConnectionException {
-  final String message;
-  const ConnectionExceptionMock({this.message});
-}