chrome/android/java/res/layout/top_view.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright 2019 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. -->

<org.chromium.chrome.browser.contacts_picker.TopView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <TextView
        android:id="@+id/explanation"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginTop="16dp"
        android:layout_marginBottom="12dp"
        android:layout_marginStart="20dp"
        android:layout_marginEnd="16dp" />

    <LinearLayout
        android:id="@+id/content"
        android:layout_below="@id/explanation"
        style="@style/ListItemContainer">

        <include layout="@layout/checkbox_layout" />
    </LinearLayout>
</org.chromium.chrome.browser.contacts_picker.TopView>