Revert "Fix observatory tests broken by running dartfmt."

runtime/observatory/tests/observatory_ui/mocks/repositories/ports.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
 
 part of mocks;
 
 typedef Future<M.Ports> PortsRepositoryMockGetter(M.IsolateRef i);
 
 class PortsRepositoryMock implements M.PortsRepository {
   final PortsRepositoryMockGetter _getter;
 
   Future<M.Ports> get(M.IsolateRef i) {
     if (_getter != null) {
       return _getter(i);
     }
     return new Future.value(new PortsMock());
   }
 
-  PortsRepositoryMock({PortsRepositoryMockGetter getter}) : _getter = getter;
+  PortsRepositoryMock({PortsRepositoryMockGetter getter})
+    : _getter = getter;
 }