1<!DOCTYPE html>
2<!--
3Copyright 2016 The Chromium Authors. All rights reserved.
4Use of this source code is governed by a BSD-style license that can be
5found in the LICENSE file.
6-->
7<link rel="import" href="/tracing/base/base.html">
8<link rel="import" href="/tracing/base/extension_registry.html">
9<link rel="import" href="/tracing/base/iteration_helpers.html">
10
11<script>
12'use strict';
13
14tr.exportTo('tr.metrics', function() {
15
16  function MetricRegistry() {}
17
18  var options = new tr.b.ExtensionRegistryOptions(tr.b.BASIC_REGISTRY_MODE);
19  options.defaultMetadata = {};
20  options.mandatoryBaseClass = Function;
21  tr.b.decorateExtensionRegistry(MetricRegistry, options);
22
23  return {
24    MetricRegistry: MetricRegistry
25  };
26});
27</script>
28