chromium/chrome/browser/resources/suggest_internals/icons.html

<iron-iconset-svg name="suggest">
  <svg size="24">
    <defs>
      <g id="lock" viewBox="0 0 48 48">
        <path d="M0 0h48v48H0z" fill="none"></path>
        <path d="M36 16h-2v-4c0-5.52-4.48-10-10-10S14 6.48 14 12v4h-2c-2.21 0-4 1.79-4 4v20c0 2.21 1.79 4 4 4h24c2.21 0 4-1.79 4-4V20c0-2.21-1.79-4-4-4zM24 34c-2.21 0-4-1.79-4-4s1.79-4 4-4 4 1.79 4 4-1.79 4-4 4zm6.2-18H17.8v-4c0-3.42 2.78-6.2 6.2-6.2 3.42 0 6.2 2.78 6.2 6.2v4z"></path>
      </g>
    </defs>
  </svg>
</iron-iconset-svg>