chrome/browser/resources/net_internals/capture_view.html

<div id=capture-view-tab-content class=content-box>
  <div>
    <input id=capture-view-limit-checkbox type=checkbox>
    <label for='capture-view-limit-checkbox'>
      Discard old data under memory pressure.
    </label>
    <span id=capture-view-limit-help-hover class=mouse-over-help-hover>(?)</span>
    <!-- Inline filter help -->
    <div id=capture-view-limit-help class=mouse-over-help>
      If you capture all events for a long time, it is possible to exhaust memory
      and crash. Throwing out older data avoids this problem.
    </div>
  </div>

  <div>
    <input id=capture-view-byte-logging-checkbox type=checkbox>
    <label for='capture-view-byte-logging-checkbox'>
      Include the actual bytes sent/received.
    </label>
    <span id=capture-view-byte-logging-help-hover class=mouse-over-help-hover>(?)</span>
    <div id=capture-view-byte-logging-help class=mouse-over-help>
      This will result in huge log files, and can expose sensitive data.
    </div>
  </div>

  <div style='margin-top: 20px'>
    <button id=capture-view-stop-button>Stop</button>
    <button id=capture-view-reset-button>Reset</button>
  </div>

</div>