Use dartfmt on Observatory code

runtime/observatory/lib/src/elements/source_inset.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 source_inset_element;
 
 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';
 import 'package:observatory/src/elements/script_inset.dart';
 
 class SourceInsetElement extends HtmlElement implements Renderable {
   static const tag = const Tag<SourceInsetElement>('source-inset');
 
   RenderingScheduler _r;
 
   Stream<RenderedEvent<SourceInsetElement>> get onRendered => _r.onRendered;
 
-
   M.IsolateRef _isolate;
   M.SourceLocation _location;
   M.ScriptRepository _scripts;
   M.InstanceRepository _instances;
   M.EventRepository _events;
   int _currentPos;
   bool _inDebuggerContext;
   Iterable _variables;
 
   M.IsolateRef get isolate => _isolate;
   M.SourceLocation get location => _location;
 
-  factory SourceInsetElement(M.IsolateRef isolate, M.SourceLocation location,
-                           M.ScriptRepository scripts,
-                           M.InstanceRepository instances,
-                           M.EventRepository events,
-                           {int currentPos,
-                           bool inDebuggerContext: false,
-                           Iterable variables: const [],
-                           RenderingQueue queue}) {
+  factory SourceInsetElement(
+      M.IsolateRef isolate,
+      M.SourceLocation location,
+      M.ScriptRepository scripts,
+      M.InstanceRepository instances,
+      M.EventRepository events,
+      {int currentPos,
+      bool inDebuggerContext: false,
+      Iterable variables: const [],
+      RenderingQueue queue}) {
     assert(isolate != null);
     assert(location != null);
     assert(scripts != null);
     assert(instances != null);
     assert(events != null);
     assert(inDebuggerContext != null);
     assert(variables != null);
     SourceInsetElement e = document.createElement(tag.name);
     e._r = new RenderingScheduler(e, queue: queue);
     e._isolate = isolate;
@@ skipping 17 matching lines @@
 
   @override
   void detached() {
     super.detached();
     children = [];
     _r.disable(notify: true);
   }
 
   void render() {
     children = [
-      new ScriptInsetElement(_isolate, _location.script,
-                             _scripts, _instances, _events,
-                             startPos: _location.tokenPos,
-                             endPos: _location.endTokenPos,
-                             currentPos: _currentPos,
-                             inDebuggerContext: _inDebuggerContext,
-                             variables: _variables,
-                             queue: _r.queue)
+      new ScriptInsetElement(
+          _isolate, _location.script, _scripts, _instances, _events,
+          startPos: _location.tokenPos,
+          endPos: _location.endTokenPos,
+          currentPos: _currentPos,
+          inDebuggerContext: _inDebuggerContext,
+          variables: _variables,
+          queue: _r.queue)
     ];
   }
 }