Revert 28422

runtime/bin/vmservice/client/packages/observatory/src/observatory_elements/json_view.dart

Index: runtime/bin/vmservice/client/packages/observatory/src/observatory_elements/json_view.dart
diff --git a/runtime/bin/vmservice/client/packages/observatory/src/observatory_elements/json_view.dart b/runtime/bin/vmservice/client/packages/observatory/src/observatory_elements/json_view.dart
deleted file mode 100644
index 74478c0b29fdeca367fc740903bd8d025a5278f2..0000000000000000000000000000000000000000
--- a/runtime/bin/vmservice/client/packages/observatory/src/observatory_elements/json_view.dart
+++ /dev/null
@@ -1,56 +0,0 @@
-// 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 json_view_element;
-
-import 'package:polymer/polymer.dart';
-import 'observatory_element.dart';
-
-@CustomTag('json-view')
-class JsonViewElement extends ObservatoryElement {
-  @published dynamic get json => __$json; dynamic __$json = null; set json(dynamic value) { __$json = notifyPropertyChange(#json, __$json, value); }
-  var _count = 0;
-
-  JsonViewElement() : super() {
-  }
-
-  void jsonChanged(oldValue) {
-    notifyProperty(this, #valueType);
-  }
-
-  String get primitiveString {
-    return json.toString();
-  }
-
-  String get valueType {
-    if (json is Map) {
-      return 'Map';
-    } else if (json is List) {
-      return 'List';
-    }
-    return 'Primitive';
-  }
-
-  int get counter {
-    return _count++;
-  }
-
-  List get list {
-    if (json is List) {
-      return json;
-    }
-    return [];
-  }
-
-  List get keys {
-    if (json is Map) {
-      return json.keys.toList();
-    }
-    return [];
-  }
-
-  dynamic value(String key) {
-    return json[key];
-  }
-}