Removed const from classes arrays in Observatory

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 248 matching lines @@
         report.add(_tree);
         break;
       default:
         break;
     }
     return report;
   }
 
   static Element _createDominator(toggle) {
     return new DivElement()
-      ..classes = const ['tree-item']
+      ..classes = ['tree-item']
       ..children = [
-        new SpanElement()..classes = const ['size']
+        new SpanElement()..classes = ['size']
           ..title = 'retained size',
-        new SpanElement()..classes = const ['lines'],
-        new ButtonElement()..classes = const ['expander']
+        new SpanElement()..classes = ['lines'],
+        new ButtonElement()..classes = ['expander']
           ..onClick.listen((_) => toggle(autoToggleSingleChildNodes: true)),
-        new SpanElement()..classes = const ['percentage']
+        new SpanElement()..classes = ['percentage']
           ..title = 'percentage of heap being retained',
-        new SpanElement()..classes = const ['name']
+        new SpanElement()..classes = ['name']
       ];
   }
 
   static Element _createGroup(toggle) {
     return new DivElement()
-      ..classes = const ['tree-item']
+      ..classes = ['tree-item']
       ..children = [
-        new SpanElement()..classes = const ['size']
+        new SpanElement()..classes = ['size']
           ..title = 'shallow size',
-        new SpanElement()..classes = const ['lines'],
-        new ButtonElement()..classes = const ['expander']
+        new SpanElement()..classes = ['lines'],
+        new ButtonElement()..classes = ['expander']
           ..onClick.listen((_) => toggle(autoToggleSingleChildNodes: true)),
-        new SpanElement()..classes = const ['count']
+        new SpanElement()..classes = ['count']
           ..title = 'shallow size',
-        new SpanElement()..classes = const ['name']
+        new SpanElement()..classes = ['name']
       ];
   }
 
   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)
@@ skipping 15 matching lines @@
       int depth) {
     element.children[0].text = Utils.formatSize(node.retainedSize);
     _updateLines(element.children[1].children, depth);
     if (_getChildrenDominator(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 = const ['name']
+    final wrapper = new SpanElement()..classes = ['name']
                                      ..text = 'Loading...';
     element.children[4] = wrapper;
     node.object.then((object) {
       wrapper..text = ''
         ..children = [anyRef(_isolate, object, _instances, queue: _r.queue)];
     });
   }
 
   void _updateGroup(HtmlElement element, item, int depth) {
     _updateLines(element.children[1].children, depth);
     if (item is M.HeapSnapshotClassReferences) {
       element.children[0].text = Utils.formatSize(item.shallowSize);
       element.children[2].text = _tree.isExpanded(item) ? '▼' : '►';
       element.children[3].text = '${item.instances} instances of ';
       element.children[4] = new ClassRefElement(_isolate, item.clazz,
-          queue: _r.queue)..classes = const ['name'];
+          queue: _r.queue)..classes = ['name'];
     } else if (item is Iterable) {
       element.children[0].text = '';
       if (item.isNotEmpty) {
         element.children[2].text = _tree.isExpanded(item) ? '▼' : '►';
       } else {
         element.children[2].text = '';
       }
       element.children[3].text = '';
       if (item is Iterable<M.HeapSnapshotClassInbound>) {
-        element.children[4] = new SpanElement()..classes = const ['name']
+        element.children[4] = new SpanElement()..classes = ['name']
             ..text = '${item.length} Incoming references';
       } else {
-        element.children[4] = new SpanElement()..classes = const ['name']
+        element.children[4] = new SpanElement()..classes = ['name']
             ..text = '${item.length} Outgoing references';
       }
     } else {
       element.children[0].text = '';
       element.children[2].text = '';
       element.children[3].text = '';
-      element.children[4] = new SpanElement()..classes = const ['name'];
+      element.children[4] = new SpanElement()..classes = ['name'];
       if (item is M.HeapSnapshotClassInbound){
         element.children[3].text =
             '${item.count} references from instances of ';
         element.children[4].children = [
           new ClassRefElement(_isolate, item.source,
             queue: _r.queue)
         ];
       } else if (item is M.HeapSnapshotClassOutbound){
         element.children[3]..text = '${item.count} references to instances of ';
         element.children[4].children = [
@@ skipping 32 matching lines @@
                 selected: _mode == mode)
               ..text = modeToString(mode);
           }).toList(growable: false)
         ..onChange.listen((_) {
             _mode = HeapSnapshotTreeMode.values[s.selectedIndex];
             _r.dirty();
           })
     ];
   }
 }