chromium/chrome/browser/resources/nearby_internals/http_tab.html

<style include="shared-style">
  :host {
    --standard-border: 1px solid black;
  }

  #clearButton {
    float: right;
  }
</style>
<cr-button on-click="onUpdateDeviceClicked_" class="internals-button">
  Call UpdateDevice RPC
</cr-button>
<cr-button on-click="onListContactPeopleClicked_" class="internals-button">
  Call ListContactPeople RPC
</cr-button>
<cr-button on-click="onListPublicCertificatesClicked_" class="internals-button">
  Call ListPublicCertificates RPC
</cr-button>
<cr-button on-click="onClearMessagesButtonClicked_" class="internals-button"
    id="clearButton" disabled="[[!httpMessageList_.length]]">
 Clear Messages
</cr-button>
<dom-repeat items="[[httpMessageList_]]" as="http-message"
    hidden="[[!httpMessageList_.length]]">
    <!-- TODO(https://crbug.com/1120668): Add missing bottom border to HTTP
    Messages list. -->
  <template>
    <http-message-object item="[[http-message]]">
    </http-message-object>
  </template>
</dom-repeat>