Removed polymer & mirror from Observatory

runtime/observatory/lib/src/elements/instance_ref_wrapper.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.
-
-import 'dart:html';
-
-import 'package:observatory/app.dart';
-import 'package:observatory/repositories.dart';
-import 'package:observatory/service_html.dart' show Instance;
-import 'package:observatory/src/elements/instance_ref.dart';
-import 'package:observatory/src/elements/helpers/tag.dart';
-import 'package:observatory/src/elements/shims/binding.dart';
-
-@bindable
-class InstanceRefElementWrapper extends HtmlElement {
-
-  static const binder = const Binder<InstanceRefElementWrapper>(const {
-      'ref': #ref
-    });
-
-  static const tag = const Tag<InstanceRefElementWrapper>('instance-ref');
-
-  Instance _instance;
-  Instance get ref => _instance;
-  void set ref(Instance ref) {
-    _instance = ref;
-    render();
-  }
-
-  InstanceRefElementWrapper.created() : super.created() {
-    binder.registerCallback(this);
-    createShadowRoot();
-    render();
-  }
-
-  @override
-  void attached() {
-    super.attached();
-    render();
-  }
-
-  void render() {
-    shadowRoot.children = [];
-    if (ref == null) return;
-
-    shadowRoot.children = [
-      new StyleElement()
-        ..text = '''
-        instance-ref-wrapped a[href]:hover {
-            text-decoration: underline;
-        }
-        instance-ref-wrapped a[href] {
-            color: #0489c3;
-            text-decoration: none;
-        }
-        instance-ref-wrapped .emphasize {
-          font-style: italic;
-        }
-        instance-ref-wrapped .indent {
-          margin-left: 1.5em;
-          font: 400 14px 'Montserrat', sans-serif;
-          line-height: 150%;
-        }
-        instance-ref-wrapped .stackTraceBox {
-          margin-left: 1.5em;
-          background-color: #f5f5f5;
-          border: 1px solid #ccc;
-          padding: 10px;
-          font-family: consolas, courier, monospace;
-          font-size: 12px;
-          white-space: pre;
-          overflow-x: auto;
-        }''',
-      new InstanceRefElement(_instance.isolate, _instance,
-                             new InstanceRepository(),
-                             queue: ObservatoryApplication.app.queue)
-    ];
-  }
-}