chromium/android_webview/nonembedded/java/res_devui/layout/fragment_components_list.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
  Copyright 2021 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"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/fragment_components_list"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:id="@+id/components_summary_textview"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingTop="16dp"
        android:paddingBottom="16dp"
        android:paddingStart="10dp"
        android:paddingEnd="10dp"
        android:textAppearance="?android:attr/textAppearanceLarge"/>

    <View
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="?android:attr/listDivider"/>

    <Switch
        android:id="@+id/on_demand_update"
        android:text="On-Demand Update"
        android:checked="true"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:paddingTop="16dp"
        android:paddingBottom="16dp"
        android:paddingStart="10dp"
        android:paddingEnd="10dp"
        android:textAppearance="?android:attr/textAppearanceMedium"
        tools:ignore="UseSwitchCompatOrMaterialXml,HardcodedText"/>

    <!-- horizontal divider -->
    <View
        android:layout_width="match_parent"
        android:layout_height="1dp"
        android:background="?android:attr/listDivider"/>

    <!-- child divider is transparent (hidden) -->
    <ListView
        android:id="@+id/components_list"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:childDivider="#00000000"/>

 </LinearLayout>