chrome/android/features/ar/AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright 2018 The Chromium Authors. All rights reserved.
     Use of this source code is governed by a BSD-style license that can be
     found in the LICENSE file. -->

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:dist="http://schemas.android.com/apk/distribution"
    featureSplit="ar">

    <dist:module
        dist:onDemand="true"
        dist:title="@string/ar_module_title">
        <dist:fusing dist:include="false" />
    </dist:module>

    <application>
        <!-- This tag indicates that this application optionally uses ARCore. -->
        <meta-data android:name="com.google.ar.core" android:value="optional" />
    </application>
</manifest>