chromium/chrome/browser/resources/memory_internals/memory_internals.html

<!doctype html>
<html>
  <head>
    <meta charset="utf-8">
    <title>Memory Internals</title>
    <style type="text/css">
      body {
        font-family: sans-serif;
      }
      th {
        border-bottom: 1px solid black;
        padding: 5px;
        text-align: start;
      }
      td {
        padding: 5px;
      }
      #message {
        font-style: italic;
        margin-bottom: 1em;
        padding: 5px;
      }
      .commands {
        padding: 5px;
      }
    </style>
  </head>
  <body>
    <h3>Experimental memory internals</h3>
    <div id="message"></div>

    <div class="commands">
      <button id="refresh">↺ Refresh process list</button>
      <button id="save">⇩ Save dump</button>
      <div id="save-dump-text"></div>
    </div>

    <div id="proclist">loading...</div>
    <script type="module" src="memory_internals.js"></script>
  </body>
</html>