Removed polymer & mirror from Observatory

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

Index: runtime/observatory/lib/src/elements/timeline_page.dart
diff --git a/runtime/observatory/lib/src/elements/timeline_page.dart b/runtime/observatory/lib/src/elements/timeline_page.dart
index 8e7b3ef144da8c56af6b08bbfc40d16af3c92000..a3bb24bfbfa6942477311a1d195c8206590b0a2f 100644
--- a/runtime/observatory/lib/src/elements/timeline_page.dart
+++ b/runtime/observatory/lib/src/elements/timeline_page.dart
@@ -10,9 +10,9 @@ import 'dart:convert';
 import 'package:observatory/service.dart' as S;
 import 'package:observatory/service_html.dart' as SH;
 import 'package:observatory/models.dart' as M;
+import 'package:observatory/src/elements/helpers/nav_bar.dart';
 import 'package:observatory/src/elements/helpers/rendering_scheduler.dart';
 import 'package:observatory/src/elements/helpers/tag.dart';
-import 'package:observatory/src/elements/nav/bar.dart';
 import 'package:observatory/src/elements/nav/notify.dart';
 import 'package:observatory/src/elements/nav/refresh.dart';
 import 'package:observatory/src/elements/nav/top_menu.dart';
@@ -29,7 +29,6 @@ enum _Profile {
 class TimelinePageElement extends HtmlElement implements Renderable {
   static const tag = const Tag<TimelinePageElement>('timeline-page',
                                                     dependencies: const [
-                                                      NavBarElement.tag,
                                                       NavTopMenuElement.tag,
                                                       NavVMMenuElement.tag,
                                                       NavRefreshElement.tag,
@@ -121,10 +120,9 @@ class TimelinePageElement extends HtmlElement implements Renderable {
     ];
     if (children.isEmpty) {
       children = [
-        new NavBarElement(queue: _r.queue)
-          ..children = [
+        navBar([
             new NavTopMenuElement(queue: _r.queue),
-            new NavVMMenuElement(_vm, _events, last: true, queue: _r.queue),
+            new NavVMMenuElement(_vm, _events, queue: _r.queue),
             new NavRefreshElement(queue: _r.queue)
                 ..onRefresh.listen((e) async {
                   e.element.disabled = true;
@@ -150,7 +148,7 @@ class TimelinePageElement extends HtmlElement implements Renderable {
                   e.element.disabled = false;
                 }),
             new NavNotifyElement(_notifications, queue: _r.queue)
-          ],
+          ]),
         _content,
         new DivElement()..classes = ['iframe']
           ..children = [