chrome/browser/resources/sync_internals/search.html

<p>
<input id="sync-search-query" type="search" incremental
       placeholder="Search Sync Data">
<span id="sync-search-status"></span>
</p>

<div id="sync-results-container">
  <list id="sync-results-list"></list>
  <div id="sync-results-splitter"></div>
  <div id="sync-result-details-container">
    <pre id="sync-result-details"></pre>
  </div>
</div>

<script src="chrome://sync-internals/search.js"></script>