Show max latency on client's status bar

remoting/webapp/base/js/connection_stats.js

 // Copyright (c) 2012 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
  * Module to support debug overlay window with connection stats.
  */
 
 'use strict';
@@ skipping 105 matching lines @@
       videoBandwidth = videoBandwidth / 1048576;
     } else {
       units = 'GiBps';
       videoBandwidth = videoBandwidth / 1073741824;
     }
   }
 
   /**
    * @param {number} value
    * @param {string} units
+   * @param {number} number of digits after decimal.

[Dan Beam, 2016/03/22 20:49:04]

@param {number} digits

    * @return {string} Formatted number.
    */
-  function formatStatNumber(value, units) {
+  function formatStatNumber(value, units, digits) {
     if (value != undefined) {
-      return value.toFixed(2) + ' ' + units;
+      return value.toFixed(digits) + ' ' + units;
     } else {
       return "n/a";
     }
   }
 
+  /**
+   * @param {string} type
+   * @param {number} avg
+   * @param {number} max
+   * @return {string} "type: avg, max; " e.g. "RTT: 8.0, 13; "
+   */
+  function formatStat(type, avg, max) {
+    return type + ': ' + avg.toFixed(1) + ', ' + max + '; ';
+  }
+
   var statistics = document.getElementById('statistics');
   this.statsElement_.innerText = (
-      'Bandwidth: ' + formatStatNumber(videoBandwidth, units) +
-      ', Frame Rate: ' + formatStatNumber(stats.videoFrameRate, 'fps') +
-      ', Capture: ' + formatStatNumber(stats.captureLatency, 'ms') +
-      ', Encode: ' + formatStatNumber(stats.encodeLatency, 'ms') +
-      ', Decode: ' + formatStatNumber(stats.decodeLatency, 'ms') +
-      ', Render: ' + formatStatNumber(stats.renderLatency, 'ms') +
-      ', Latency: ' + formatStatNumber(stats.roundtripLatency, 'ms'));
+      '(avg, max in ms) ' +
+      formatStat('Capture', stats.captureLatency, stats.maxCaptureLatency) +
+      formatStat('Encode', stats.encodeLatency, stats.maxEncodeLatency) +
+      formatStat('Decode', stats.decodeLatency, stats.maxDecodeLatency) +
+      formatStat('Render', stats.renderLatency, stats.maxRenderLatency) +
+      formatStat('RTT', stats.roundtripLatency, stats.maxRoundtripLatency) +
+      'Bandwidth: ' + formatStatNumber(videoBandwidth, units, 2) + '; ' +
+      'Frame Rate: ' + formatStatNumber(stats.videoFrameRate, 'fps', 1)
+    );
 };