packages/WallpaperBackup/AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<!--
/*
 * Copyright (c) 2016 Google Inc.
 *
 * 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.
 */
-->
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.android.wallpaperbackup"
    android:sharedUserId="android.uid.system" >

    <application android:allowClearUserData="false"
                 android:process="system"
                 android:killAfterRestore="false"
                 android:allowBackup="true"
                 android:backupInForeground="true"
                 android:backupAgent=".WallpaperBackupAgent"
                 android:fullBackupOnly="true" >
    </application>
</manifest>