chromium/chrome/browser/resources/ash/settings/device_page/per_device_touchpad.html

<template is="dom-repeat" items="[[touchpads]]"
    as="touchpad" index-as="index" restamp>
  <settings-per-device-touchpad-subsection
      touchpad="[[touchpad]]" touchpad-index="[[index]]"
      is-last-device="[[computeIsLastDevice(index, touchpads.length)]]">
  </settings-per-device-touchpad-subsection>
</template>