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

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright 2021 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. -->

<androidx.coordinatorlayout.widget.CoordinatorLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="@macro/default_bg_color">

    <com.google.android.material.appbar.AppBarLayout
        android:id="@+id/app_bar_layout"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:fitsSystemWindows="true"
        app:liftOnScroll="true">

        <com.google.android.material.appbar.MaterialToolbar
            android:id="@+id/action_bar"
            android:layout_width="match_parent"
            android:layout_height="?attr/actionBarSize"/>
    </com.google.android.material.appbar.AppBarLayout>

    <FrameLayout
        android:id="@+id/content"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">
    </FrameLayout>

    <FrameLayout
        android:id="@+id/sheet_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:clipChildren="false" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>