Merge "Add onCreate method to SystemBackup agent that receives UserHandle."

import android.os.ParcelFileDescriptor;

import android.os.Process;

import android.os.RemoteException;

import android.os.UserHandle;

import android.system.ErrnoException;

import android.system.Os;

import android.system.OsConstants;

    public void onCreate() {

    }

    /**

     * Provided as a convenience for agent implementations that need an opportunity

     * to do one-time initialization before the actual backup or restore operation

     * is begun with information about the calling user.

     * <p>

     *

     * @hide

     */

    public void onCreate(UserHandle user) {

        onCreate();

    }

    /**

     * Provided as a convenience for agent implementations that need to do some

     * sort of shutdown process after backup or restore is completed.