9b05c61a87
As a prelude to introducing fancier scoring functions, this CL moves scoring and everything that depends on it into a handler. This allows the NotificationManagerService to report back to the calling process right away about whether or not the notification is valid; not blocking while score is computed, and non-statusbar notification modalities are activated. Change-Id: Iaf77bc89544bb7bcb7adeda60885d74c3170541c