<!DOCTYPE html>
<!--
Copyright (c) 2014 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.
-->
<link rel="import" href="/tracing/base/base.html">
<script>
'use strict';

tr.exportTo('tr.b', function() {
  function Base64() {
  }

  function b64ToUint6(nChr) {
    if (nChr > 64 && nChr < 91) return nChr - 65;
    if (nChr > 96 && nChr < 123) return nChr - 71;
    if (nChr > 47 && nChr < 58) return nChr + 4;
    if (nChr