Use dartfmt on Observatory code

runtime/observatory/lib/src/elements/nav/isolate_menu.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
-  show IsolateRef, EventRepository;
+import 'package:observatory/models.dart' as M show IsolateRef, EventRepository;
 import 'package:observatory/src/elements/helpers/nav_menu.dart';
 import 'package:observatory/src/elements/helpers/rendering_scheduler.dart';
 import 'package:observatory/src/elements/helpers/tag.dart';
 import 'package:observatory/src/elements/helpers/uris.dart';
 import 'package:observatory/src/elements/nav/menu_item.dart';
 
 class NavIsolateMenuElement extends HtmlElement implements Renderable {
   static const tag = const Tag<NavIsolateMenuElement>('nav-isolate-menu',
-                     dependencies: const [NavMenuItemElement.tag]);
+      dependencies: const [NavMenuItemElement.tag]);
 
   RenderingScheduler _r;
 
   Stream<RenderedEvent<NavIsolateMenuElement>> get onRendered => _r.onRendered;
 
   M.IsolateRef _isolate;
   M.EventRepository _events;
   StreamSubscription _updatesSubscription;
   Iterable<Element> _content = const [];
 
   M.IsolateRef get isolate => _isolate;
   Iterable<Element> get content => _content;
 
   set content(Iterable<Element> value) {
     _content = value.toList();
     _r.dirty();
   }
 
-  factory NavIsolateMenuElement(M.IsolateRef isolate,
-      M.EventRepository events, {RenderingQueue queue}) {
+  factory NavIsolateMenuElement(M.IsolateRef isolate, M.EventRepository events,
+      {RenderingQueue queue}) {
     assert(isolate != null);
     assert(events != null);
     NavIsolateMenuElement e = document.createElement(tag.name);
     e._r = new RenderingScheduler(e, queue: queue);
     e._isolate = isolate;
     e._events = events;
     return e;
   }
 
   NavIsolateMenuElement.created() : super.created();
 
   @override
   void attached() {
     super.attached();
     _updatesSubscription = _events.onIsolateUpdate
-      .where((e) => e.isolate.id == isolate.id)
-      .listen((e) { _isolate = e.isolate; _r.dirty(); });
+        .where((e) => e.isolate.id == isolate.id)
+        .listen((e) {
+      _isolate = e.isolate;
+      _r.dirty();
+    });
     _r.enable();
   }
 
   @override
   void detached() {
     super.detached();
     children = [];
     _r.disable(notify: true);
     assert(_updatesSubscription != null);
     _updatesSubscription.cancel();
     _updatesSubscription = null;
   }
 
   void render() {
     final content = [
-      new NavMenuItemElement('debugger', queue: _r.queue,
-          link: Uris.debugger(isolate)),
-      new NavMenuItemElement('class hierarchy', queue: _r.queue,
-          link: Uris.classTree(isolate)),
-      new NavMenuItemElement('cpu profile', queue: _r.queue,
-          link: Uris.cpuProfiler(isolate)),
-      new NavMenuItemElement('cpu profile (table)', queue: _r.queue,
-          link: Uris.cpuProfilerTable(isolate)),
-      new NavMenuItemElement('allocation profile', queue: _r.queue,
-          link: Uris.allocationProfiler(isolate)),
-      new NavMenuItemElement('heap map', queue: _r.queue,
-          link: Uris.heapMap(isolate)),
-      new NavMenuItemElement('metrics', queue: _r.queue,
-          link: Uris.metrics(isolate)),
-      new NavMenuItemElement('heap snapshot', queue: _r.queue,
-          link: Uris.heapSnapshot(isolate)),
-      new NavMenuItemElement('persistent handles', queue: _r.queue,
-          link: Uris.persistentHandles(isolate)),
-      new NavMenuItemElement('ports', queue: _r.queue,
-          link: Uris.ports(isolate)),
-      new NavMenuItemElement('logging', queue: _r.queue,
-          link: Uris.logging(isolate)),
+      new NavMenuItemElement('debugger',
+          queue: _r.queue, link: Uris.debugger(isolate)),
+      new NavMenuItemElement('class hierarchy',
+          queue: _r.queue, link: Uris.classTree(isolate)),
+      new NavMenuItemElement('cpu profile',
+          queue: _r.queue, link: Uris.cpuProfiler(isolate)),
+      new NavMenuItemElement('cpu profile (table)',
+          queue: _r.queue, link: Uris.cpuProfilerTable(isolate)),
+      new NavMenuItemElement('allocation profile',
+          queue: _r.queue, link: Uris.allocationProfiler(isolate)),
+      new NavMenuItemElement('heap map',
+          queue: _r.queue, link: Uris.heapMap(isolate)),
+      new NavMenuItemElement('metrics',
+          queue: _r.queue, link: Uris.metrics(isolate)),
+      new NavMenuItemElement('heap snapshot',
+          queue: _r.queue, link: Uris.heapSnapshot(isolate)),
+      new NavMenuItemElement('persistent handles',
+          queue: _r.queue, link: Uris.persistentHandles(isolate)),
+      new NavMenuItemElement('ports',
+          queue: _r.queue, link: Uris.ports(isolate)),
+      new NavMenuItemElement('logging',
+          queue: _r.queue, link: Uris.logging(isolate)),
     ]..addAll(_content);
     children = [
-      navMenu(isolate.name, content: content,
-          link: Uris.inspect(isolate))
+      navMenu(isolate.name, content: content, link: Uris.inspect(isolate))
     ];
   }
 }