Use dartfmt on Observatory code

runtime/observatory/lib/src/elements/isolate/run_state.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.
 
 import 'dart:html';
 import 'dart:async';
 import 'package:observatory/models.dart' as M;
 import 'package:observatory/src/elements/helpers/rendering_scheduler.dart';
 import 'package:observatory/src/elements/helpers/tag.dart';
 
 class IsolateRunStateElement extends HtmlElement implements Renderable {
   static const tag = const Tag<IsolateRunStateElement>('isolate-run-state');
 
   RenderingScheduler<IsolateRunStateElement> _r;
 
-  Stream<RenderedEvent<IsolateRunStateElement>> get onRendered =>
-      _r.onRendered;
+  Stream<RenderedEvent<IsolateRunStateElement>> get onRendered => _r.onRendered;
 
   M.Isolate _isolate;
   M.EventRepository _events;
   StreamSubscription _debugSubscription;
   StreamSubscription _isolateSubscription;
 
-  factory IsolateRunStateElement(M.Isolate isolate,
-                                        M.EventRepository events,
-                                        {RenderingQueue queue}) {
+  factory IsolateRunStateElement(M.Isolate isolate, M.EventRepository events,
+      {RenderingQueue queue}) {
     assert(isolate != null);
     assert(events != null);
     IsolateRunStateElement e = document.createElement(tag.name);
     e._r = new RenderingScheduler(e, queue: queue);
     e._isolate = isolate;
     e._events = events;
     return e;
   }
 
   IsolateRunStateElement.created() : super.created();
@@ skipping 36 matching lines @@
     }
   }
 
   void _eventListener(e) {
     if (e.isolate.id == _isolate.id) {
       _isolate = e.isolate;
       _r.dirty();
     }
   }
 }