chromium/ash/webui/common/resources/cr_elements/policy/cr_policy_pref_indicator.html

<style include="cr-hidden-style"></style>
<cr-tooltip-icon id="tooltipIcon" hidden$="[[!indicatorVisible]]"
    tooltip-text="[[indicatorTooltip]]" icon-class="[[indicatorIcon]]"
    icon-aria-label="[[iconAriaLabel]]" exportparts="tooltip">
</cr-tooltip-icon>