/**
 * Copyright 2013-2015, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @providesModule performance
 * @typechecks
 */

"use strict";

var ExecutionEnvironment = require("./ExecutionEnvironment");

var performance;

if (ExecutionEnvironment.canUseDOM) {
  performance =
    window.performance ||
    window.msPerformance ||
    window.webkitPerformance;
}

module.exports = performance || {};