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

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