File	Line Coverage			Functions
cluster_refresh_manager.h	100%	100%	2 / 2	100%	2 / 2
cluster_refresh_manager_impl.cc	96.6%	96.6%	84 / 87	100%	9 / 9
cluster_refresh_manager_impl.h	100%	100%	7 / 7	100%	4 / 4