packages/SystemUI/res/layout/recent_apps_activity.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
/*
** Copyright 2008, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
**     http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
-->

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

    <!-- Title -->
    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:textColor="#80FFFFFF"
        android:textStyle="bold"
        android:singleLine="true"
        android:text="@string/recent_tasks_title"
        android:visibility="gone"/>

    <!-- This is only intended to be visible when carousel is invisible -->
    <TextView
        android:id="@+id/no_applications_message"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="center"
        android:textAppearance="?android:attr/textAppearanceSmall"
        android:text="@string/recent_tasks_empty"
        android:visibility="gone"/>

    <com.android.systemui.recent.RecentApplicationsCarouselView
        android:id="@+id/carousel"
        android:layout_width="match_parent"
        android:layout_height="0dip"
        android:layout_weight="1">
    </com.android.systemui.recent.RecentApplicationsCarouselView>

</LinearLayout>