a31e4190cb
Ongoings are the only notifications currently given higher priority (and it's in an internal data structure, not a public API, so fear not about abuse---this will be no worse than on the phone where ongoings floated to the top). The only thing left is to give privileged customers a way to alter the priority of their notifications. Bug: 3412807 Bug: 3146719 Change-Id: I9e738cc413982845cf4858faa8ccd0a7dbf3187c