FillArgs are currently not used for indexing accounts and groups, hence we can just provide null for the FillArgs. This makes the handling of FillArgs consistent with the Lucene account and group index, which also use null for FillArgs. Change-Id: Ib66b9c6a2d7db5ee9841c14670d0da8086d40f34 Signed-off-by: Edwin Kempin <ekempin@google.com>