quickstep/res/layout/floating_header_content.xml

<?xml version="1.0" encoding="utf-8"?>
<merge xmlns:android="http://schemas.android.com/apk/res/android" >

    <com.android.launcher3.appprediction.PredictionRowView
        android:id="@+id/prediction_row"
        android:accessibilityPaneTitle="@string/title_app_suggestions"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" />

    <com.android.launcher3.appprediction.AppsDividerView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:id="@+id/apps_divider_view" />
</merge>