chrome/android/java/res/layout/settings_activity.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.
-->

<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"
        android:theme="@style/ThemeOverlay.Settings.DisableElevationOverlay"
        app:liftOnScroll="true">

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

            <!-- detailed pane title placeholder.
                 Visible only in two pane UI -->
            <LinearLayout
                android:id="@+id/settings_detailed_pane_title"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal"
                android:layout_gravity="center_vertical"
                android:gravity="center_vertical"
                android:visibility="gone" />
        </FrameLayout>

    </com.google.android.material.appbar.AppBarLayout>

    <androidx.fragment.app.FragmentContainerView
        android:id="@+id/content"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:layout_behavior="@string/appbar_scrolling_view_behavior">
    </androidx.fragment.app.FragmentContainerView>

    <!-- Container for displaying dialogs. -->
    <FrameLayout
        android:id="@+id/dialog_container"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:visibility="gone" />

    <!-- Container for displaying a bottom sheet. -->
    <include layout="@layout/bottom_sheet_container"/>

    <!-- Container for displaying a HaTS survey. -->
    <ViewStub
        android:id="@+id/hats_survey_container_stub"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:inflatedId="@+id/survey_container"
        android:layout="@layout/hats_survey_container" />
</androidx.coordinatorlayout.widget.CoordinatorLayout>