chrome/browser/signin/ui/android/java/res/layout/account_picker_state_expanded.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright 2020 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. -->

<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical" >

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

    <View style="@style/HorizontalDivider" />

    <androidx.recyclerview.widget.RecyclerView
        android:id="@+id/account_picker_account_list"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="8dp"
        android:requiresFadingEdge="vertical"
        android:scrollbars="vertical"
        android:scrollbarStyle="outsideOverlay" />

</LinearLayout>