Refactor Observatory

runtime/bin/vmservice/client/lib/src/elements/nav_bar.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 nav_bar_element;
 
 import 'dart:html';
+import 'isolate_element.dart';
+import 'observatory_element.dart';
+import 'package:observatory/app.dart';
 import 'package:polymer/polymer.dart';
-import 'observatory_element.dart';
+
 
 @CustomTag('nav-bar')
 class NavBarElement extends ObservatoryElement {
   NavBarElement.created() : super.created();
 }
 
 @CustomTag('nav-menu')
 class NavMenuElement extends ObservatoryElement {
   @published String link = '#';
   @published String anchor = '---';
   @published bool last = false;
 
   NavMenuElement.created() : super.created();
 }
 
 @CustomTag('nav-menu-item')
 class NavMenuItemElement extends ObservatoryElement {
   @published String link = '#';
   @published String anchor = '---';
 
   NavMenuItemElement.created() : super.created();
 }
 
 @CustomTag('nav-refresh')
 class NavRefreshElement extends ObservatoryElement {
   @published var callback;
   @published bool active = false;
-      
+
   NavRefreshElement.created() : super.created();
 
   void buttonClick(Event e, var detail, Node target) {
     if (active) {
       return;
     }
     active = true;
     if (callback != null) {
       callback(refreshDone);
     }
   }
 
   void refreshDone() {
     active = false;
   }
 }
 
 @CustomTag('top-nav-menu')
 class TopNavMenuElement extends ObservatoryElement {
   @published bool last = false;
 
   TopNavMenuElement.created() : super.created();
 }
 
 @CustomTag('isolate-nav-menu')
-class IsolateNavMenuElement extends ObservatoryElement {
-  @published Isolate isolate;
+class IsolateNavMenuElement extends IsolateElement {
   @published bool last = false;
 
   IsolateNavMenuElement.created() : super.created();
 }
 
 @CustomTag('library-nav-menu')
-class LibraryNavMenuElement extends ObservatoryElement {
+class LibraryNavMenuElement extends IsolateElement {
   @published Map library;
   @published bool last = false;
 
   LibraryNavMenuElement.created() : super.created();
 }
 
 @CustomTag('class-nav-menu')
-class ClassNavMenuElement extends ObservatoryElement {
+class ClassNavMenuElement extends IsolateElement {
   @published Map cls;
   @published bool last = false;
 
   ClassNavMenuElement.created() : super.created();
 }