chromium/chrome/browser/hub/internal/android/res/layout/hub_layout.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
Copyright 2023 The Chromium Authors
Use of this source code is governed by a BSD-style license that can be
found in the LICENSE file.
-->
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  android:orientation="vertical">

  <include layout="@layout/hub_toolbar_layout" />

  <include layout="@layout/hub_pane_host_layout" />

</LinearLayout>