Revert "Fix observatory tests broken by running dartfmt."

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

 // Copyright (c) 2015, 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.
 
 // 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';
@@ skipping 122 matching lines @@
         break;
       case M.HeapSnapshotLoadingStatus.loaded:
         content.addAll(_createReport());
         break;
     }
     children = content;
   }
 
   Future _refresh() async {
     _progress = null;
-    _progressStream = _snapshots.get(isolate, roots: _roots, gc: true);
+    _progressStream = _snapshots.get(isolate,
+                                     roots: _roots,
+                                     gc: true);
     _r.dirty();
     _progressStream.listen((e) {
       _progress = e.progress;
       _r.dirty();
     });
     _progress = (await _progressStream.first).progress;
     _r.dirty();
     if (M.isHeapSnapshotProgressRunning(_progress.status)) {
       _progress = (await _progressStream.last).progress;
       _snapshot = _progress.snapshot;
@@ skipping 118 matching lines @@
             'that would be freed if the object became garbage.';
         report.addAll([
           new DivElement()
             ..classes = ['content-centered-big', 'explanation']
             ..text = text
             ..title = text,
           _tree
         ]);
         break;
       case HeapSnapshotTreeMode.mergedDominatorTree:
-        _tree = new VirtualTreeElement(_createMergedDominator,
-            _updateMergedDominator, _getChildrenMergedDominator,
+        _tree = new VirtualTreeElement(
+            _createMergedDominator, _updateMergedDominator,
+            _getChildrenMergedDominator,
             items: _getChildrenMergedDominator(_snapshot.mergedDominatorTree),
             queue: _r.queue);
         _tree.expand(_snapshot.mergedDominatorTree);
         final text = 'A heap dominator tree, where siblings with the same class'
-            ' have been merged into a single node.';
+                     ' have been merged into a single node.';
         report.addAll([
           new DivElement()
             ..classes = ['content-centered-big', 'explanation']
             ..text = text
             ..title = text,
           _tree
         ]);
         break;
       case HeapSnapshotTreeMode.groupByClass:
         final items = _snapshot.classReferences.toList();
@@ skipping 67 matching lines @@
   static const int kMaxChildren = 100;
   static const int kMinRetainedSize = 4096;
 
   static _getChildrenDominator(M.HeapSnapshotDominatorNode node) {
     final list = node.children.toList();
     list.sort((a, b) => b.retainedSize - a.retainedSize);
     return list
         .where((child) => child.retainedSize >= kMinRetainedSize)
         .take(kMaxChildren);
   }
-
   static _getChildrenMergedDominator(M.HeapSnapshotMergedDominatorNode node) {
     final list = node.children.toList();
     list.sort((a, b) => b.retainedSize - a.retainedSize);
     return list
         .where((child) => child.retainedSize >= kMinRetainedSize)
         .take(kMaxChildren);
   }
 
   static _getChildrenGroup(item) {
     if (item is M.HeapSnapshotClassReferences) {
@@ skipping 18 matching lines @@
     element.children[3].text =
         Utils.formatPercentNormalized(node.retainedSize * 1.0 / _snapshot.size);
     final wrapper = new SpanElement()
       ..classes = ['name']
       ..text = 'Loading...';
     element.children[4] = wrapper;
     if (node.isStack) {
       wrapper
         ..text = ''
         ..children = [
-          new AnchorElement(href: Uris.debugger(isolate))..text = 'stack frames'
+          new AnchorElement(href: Uris.debugger(isolate))
+            ..text = 'stack frames'
         ];
     } else {
       node.object.then((object) {
         wrapper
           ..text = ''
           ..children = [anyRef(_isolate, object, _instances, queue: _r.queue)];
       });
     }
   }
 
   void _updateMergedDominator(
       HtmlElement element, M.HeapSnapshotMergedDominatorNode node, int depth) {
     element.children[0].text = Utils.formatSize(node.retainedSize);
     _updateLines(element.children[1].children, depth);
     if (_getChildrenMergedDominator(node).isNotEmpty) {
       element.children[2].text = _tree.isExpanded(node) ? '▼' : '►';
     } else {
       element.children[2].text = '';
     }
     element.children[3].text =
         Utils.formatPercentNormalized(node.retainedSize * 1.0 / _snapshot.size);
     final wrapper = new SpanElement()
       ..classes = ['name']
       ..text = 'Loading...';
     element.children[4] = wrapper;
     if (node.isStack) {
       wrapper
         ..text = ''
         ..children = [
-          new AnchorElement(href: Uris.debugger(isolate))..text = 'stack frames'
+          new AnchorElement(href: Uris.debugger(isolate))
+            ..text = 'stack frames'
         ];
     } else {
       node.klass.then((klass) {
         wrapper
           ..text = ''
           ..children = [
             new SpanElement()..text = '${node.instanceCount} instances of ',
             anyRef(_isolate, klass, _instances, queue: _r.queue)
           ];
       });
@@ skipping 110 matching lines @@
               value: modeToString(mode),
               selected: _mode == mode)..text = modeToString(mode);
         }).toList(growable: false)
         ..onChange.listen((_) {
           _mode = HeapSnapshotTreeMode.values[s.selectedIndex];
           _r.dirty();
         })
     ];
   }
 }