Store track name inside ProcessStateRecord

This CL changes to pass the track name to ProcessStateRecord at the
constructor instead of querying the process name and uid when sending
trace.

It slightly reduces the dependency from ProcessStateRecord to the
ProcessRecord.

Bug: 425766486
Test: mmm frameworks/base/services/
Test: atest MockingOomAdjusterTests
Flag: EXEMPT pure refactor
Change-Id: I49de8eebf9ca59996b9732f6c55f456e4f5d89e3