Refactor Observatory

runtime/bin/vmservice/client/lib/src/app/view_model.dart

 // Copyright (c) 2014, 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.
 
-part of observatory;
+part of app;
 
 abstract class TableTreeRow extends Observable {
   final TableTreeRow parent;
   @observable final int depth;
   @observable final List<TableTreeRow> children = new List<TableTreeRow>();
   @observable final List<String> columns = [];
 
   TableTreeRow(TableTreeRow parent) :
       parent = parent,
       depth = parent != null ? parent.depth+1 : 0;
@@ skipping 83 matching lines @@
     }
     // Collapse this row.
     row.expanded = false;
     // Remove all children.
     int index = _index(row);
     for (var i = 0; i < childCount; i++) {
       rows.removeAt(index + 1);
     }
   }
 }