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

<style include="settings-shared md-select">
  #selectDevice {
    width: 100%;
  }

  .custom-body {
    padding-bottom: 20px;
  }

  .custom-button-container {
    float: right;
  }

  .input-container {
    padding-bottom: 10px;
  }
</style>
<cr-dialog id="dialog" close-text="$i18n{close}">
  <div slot="title">$i18n{guestOsSharedUsbDevicesAddTitle}</div>
  <div slot="body">
    <div class="input-container">
      <label class="cr-form-field-label">Device</label>
      <select id="selectDevice" class="md-select"
          disabled="[[!sharedUsbDevices.length]]">
        <template is="dom-if" if="[[!sharedUsbDevices.length]]" restamp>
          <option>$i18n{guestOsSharedUsbDevicesListEmptyMessage}</option>
        </template>
        <template is="dom-repeat" items="[[sharedUsbDevices]]">
          <option value="[[item.device.guid]]">
            [[item.device.label]]
            [[[item.device.vendorId]]:[[item.device.productId]]]
          </option>
        </template>
      </select>
    </div>
    <template is="dom-if" if="[[showContainerSelect_(allContainers)]]" restamp>
      <settings-guest-os-container-select
          containers="[[allContainers]]"
          selected-container-id="{{guestId_}}"
          default-vm-name="[[defaultGuestId.vm_name]]">
      </settings-guest-os-container-select>
    </template>
  </div>
  <div slot="body" class="custom-body">
    <div slot="button-container" class="custom-button-container">
      <cr-button id="cancel" class="cancel-button" on-click="onCancelClick_">
        $i18n{cancel}
      </cr-button>
      <cr-button id="continue" class="action-button"
          disabled="[[!sharedUsbDevices.length]]" on-click="onAddClick_">
        $i18n{add}
      </cr-button>
    </div>
  </div>
</cr-dialog>
<template is="dom-if" if="[[reassignDevice_]]" restamp>
  <cr-dialog id="reassignDialog" close-text="$i18n{close}"
      on-cancel="onReassignCancel_" show-on-attach>
    <div slot="title">
      $i18n{guestOsSharedUsbDevicesInUse}
    </div>
    <div slot="body">
      [[getReassignDialogText_(reassignDevice_)]]
    </div>
    <div slot="button-container">
      <cr-button id="cancel" class="cancel-button" on-click="onReassignCancel_">
        $i18n{cancel}
      </cr-button>
      <cr-button id="continue" class="action-button"
          on-click="onReassignContinueClick_">
        $i18n{continue}
      </cr-button>
    </div>
  </cr-dialog>
</template>