chromium/chrome/browser/resources/ash/settings/os_apps_page/app_management_page/file_handling_item.html

<style include="app-management-cros-shared-style">
  :host(:not([available_])) {
    display: none;
  }

  #file-handling-item {
    margin: var(--row-item-vertical-padding) 0;
    width: 100%;
  }

  #toggle-row:not([disabled_]) {
    cursor: pointer;
  }

  #dialog-body {
    user-select: text;
  }
</style>

<div id="file-handling-item">
  <app-management-toggle-row
     id="toggle-row"
     label="[[i18n('appManagementFileHandlingHeader')]]"
     managed="[[isManaged_(app)]]"
     value="[[getValue_(app)]]"
     class="header-text">
  </app-management-toggle-row>
  <p>
    <localized-link id="type-list"
      localized-string="[[userVisibleTypesLabel_(app)]]"
      on-link-clicked="launchDialog_">
    </localized-link>
  </p>
  <localized-link id="learn-more"
    localized-string="[[i18nAdvanced('fileHandlingSetDefaults')]]"
    link-url="[[getLearnMoreLinkUrl_(app)]]"
    on-link-clicked="onLearnMoreLinkClicked_">
  </localized-link>
</div>
<template is="dom-if" if="[[showOverflowDialog]]" restamp>
  <cr-dialog id="dialog" show-on-attach
      on-close="onDialogClose_">
    <div slot="title">[[i18n('fileHandlingOverflowDialogTitle')]]</div>
    <div id="dialog-body" slot="body">
      [[userVisibleTypes_(app)]]
    </div>
    <div slot="button-container">
      <cr-button class="action-button" on-click="onCloseButtonClicked_">
        [[i18n('close')]]
      </cr-button>
    </div>
  </cr-dialog>
</template>