Revert "Run dartfmt on all files under runtime."

runtime/observatory/lib/src/elements/stack_trace_tree_config.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.
 
 import 'dart:async';
 import 'dart:html';
 import 'package:observatory/models.dart' as M;
 import 'package:observatory/src/elements/helpers/rendering_scheduler.dart';
 import 'package:observatory/src/elements/helpers/tag.dart';
 
-enum ProfileTreeMode {
-  code,
-  function,
-}
+enum ProfileTreeMode { code, function, }
 
 class StackTraceTreeConfigChangedEvent {
   final StackTraceTreeConfigElement element;
   StackTraceTreeConfigChangedEvent(this.element);
 }
 
 class StackTraceTreeConfigElement extends HtmlElement implements Renderable {
   static const tag =
       const Tag<StackTraceTreeConfigElement>('stack-trace-tree-config');
 
@@ skipping 156 matching lines @@
         ..children = ProfileTreeMode.values.map((mode) {
           return new OptionElement(
               value: modeToString(mode),
               selected: _mode == mode)..text = modeToString(mode);
         }).toList(growable: false)
         ..onChange.listen((_) {
           _mode = ProfileTreeMode.values[s.selectedIndex];
           _r.dirty();
         })
         ..onChange.map(_toEvent).listen(_triggerModeChange),
-      new SpanElement()..text = ' $modeDescription'
+      new SpanElement()
+        ..text = ' $modeDescription'
     ];
   }
 
   String get directionDescription {
     if (_direction == M.ProfileTreeDirection.inclusive) {
       return 'Tree is rooted at "main". Child nodes are callees.';
     } else {
       return 'Tree is rooted at top-of-stack. Child nodes are callers.';
     }
   }
 
   List<Element> _createDirectionSelect() {
     var s;
     return [
       s = new SelectElement()
         ..classes = ['direction-select']
         ..value = directionToString(_direction)
         ..children = M.ProfileTreeDirection.values.map((direction) {
           return new OptionElement(
               value: directionToString(direction),
               selected: _direction == direction)
             ..text = directionToString(direction);
         }).toList(growable: false)
         ..onChange.listen((_) {
           _direction = M.ProfileTreeDirection.values[s.selectedIndex];
           _r.dirty();
         })
         ..onChange.map(_toEvent).listen(_triggerDirectionChange),
-      new SpanElement()..text = ' $directionDescription'
+      new SpanElement()
+        ..text = ' $directionDescription'
     ];
   }
 
   List<Element> _createFilter() {
     var t;
     return [
       t = new TextInputElement()
         ..placeholder = 'Search filter'
         ..value = filter
         ..onChange.listen((_) {
@@ skipping 24 matching lines @@
   }
 
   StackTraceTreeConfigChangedEvent _toEvent(_) {
     return new StackTraceTreeConfigChangedEvent(this);
   }
 
   void _triggerModeChange(e) => _onModeChange.add(e);
   void _triggerDirectionChange(e) => _onDirectionChange.add(e);
   void _triggerFilterChange(e) => _onFilterChange.add(e);
 }