chromium/chrome/browser/resources/ash/settings/guest_os/guest_os_confirmation_dialog.html

<style include="settings-shared"></style>
<cr-dialog id="dialog" show-on-attach close-text="$i18n{close}"
    on-cancel="onDialogCancel_" on-close="onDialogClose_">
  <!-- Pass through the "body" slot. -->
  <div slot="body"><slot name="body"></slot></div>
  <div slot="button-container">
    <cr-button class="cancel-button" on-click="onCancelClick_">
      [[cancelButtonText]]
    </cr-button>
    <cr-button class="action-button" on-click="onAcceptClick_">
      [[acceptButtonText]]
    </cr-button>
  </div>
</cr-dialog>