// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

/**
 * @fileoverview Externs to be declared to properly compile JS code.
 * @externs
 */

var performance = {};

/**
 * @return {number}
 */
performance.now = function() {};

/** @interface */
var InputDeviceCapabilities;

/** @type {?InputDeviceCapabilities} */
Event.prototype.sourceCapabilities;