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

<?xml version="1.0" encoding="utf-8"?>
<!--
  Copyright 2019 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:id="@+id/fragment_crashes_list"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <TextView
        android:id="@+id/crashes_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"/>

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

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

</LinearLayout>