Use dartfmt on Observatory code

runtime/observatory/lib/src/elements/json_view.dart

 // Copyright (c) 2013, 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.
 
 library json_view_element;
 
 import 'dart:async';
 import 'dart:html';
 import 'package:observatory/models.dart' as M;
 import 'package:observatory/src/elements/helpers/nav_bar.dart';
 import 'package:observatory/src/elements/helpers/rendering_scheduler.dart';
 import 'package:observatory/src/elements/helpers/tag.dart';
 import 'package:observatory/src/elements/nav/notify.dart';
 import 'package:observatory/src/elements/nav/top_menu.dart';
 import 'package:observatory/src/elements/view_footer.dart';
 
 class JSONViewElement extends HtmlElement implements Renderable {
   static const tag = const Tag<JSONViewElement>('json-view',
-                                                dependencies: const [
-                                                  NavTopMenuElement.tag,
-                                                  NavNotifyElement.tag,
-                                                  ViewFooterElement.tag
-                                                ]);
+      dependencies: const [
+        NavTopMenuElement.tag,
+        NavNotifyElement.tag,
+        ViewFooterElement.tag
+      ]);
 
   RenderingScheduler<JSONViewElement> _r;
 
   Stream<RenderedEvent<JSONViewElement>> get onRendered => _r.onRendered;
 
   M.NotificationRepository _notifications;
   Map _map;
 
-
   M.NotificationRepository get notifications => _notifications;
   Map get map => _map;
 
-  factory JSONViewElement(Map map,
-                          M.NotificationRepository notifications,
-                          {RenderingQueue queue}) {
+  factory JSONViewElement(Map map, M.NotificationRepository notifications,
+      {RenderingQueue queue}) {
     assert(notifications != null);
     assert(map != null);
     JSONViewElement e = document.createElement(tag.name);
     e._r = new RenderingScheduler(e, queue: queue);
     e._notifications = notifications;
     e._map = map;
     return e;
   }
 
   JSONViewElement.created() : super.created();
@@ skipping 10 matching lines @@
     _r.disable(notify: true);
     children = [];
   }
 
   void render() {
     children = [
       navBar([
         new NavTopMenuElement(queue: _r.queue),
         new NavNotifyElement(_notifications, queue: _r.queue)
       ]),
-      new DivElement()..classes = ['content-centered-big']
+      new DivElement()
+        ..classes = ['content-centered-big']
         ..children = [
           new HeadingElement.h2()..text = 'Object',
           new HRElement(),
-          new PreElement()
-            ..text = JSONPretty.stringify(_map),
+          new PreElement()..text = JSONPretty.stringify(_map),
           new HRElement(),
           new ViewFooterElement(queue: _r.queue)
         ]
     ];
   }
 }
 
-
 class JSONPretty {
   JSONPretty._();
 
   static String stringify(Map map) => new JSONPretty._()._stringify(map);
 
   String _stringify(Map map) {
     _buffer.clear();
     _buffer.write('{\n');
     _printMap(map, 0);
     _buffer.write('}\n');
@@ skipping 49 matching lines @@
       } else {
         _writeIndent(depth);
         _buffer.write(v);
         _buffer.write('\n');
       }
     }
     _seen.remove(list);
   }
 
   void _writeIndent(int depth) {
-    const tab = '  ';  // 2 spaces.
+    const tab = '  '; // 2 spaces.
     _buffer.write(tab * depth);
   }
 
   final _buffer = new StringBuffer();
   final _seen = new Set();
 }