struct TraceTimestampTraits

A function for converting an abstract timestamp into a

perfetto::TraceTimestamp struct. By specialising this template and defining

static ConvertTimestampToTraceTimeNs function in it the user can register

additional timestamp types. The return value should specify the

clock domain used by the timestamp as well as its value.

The supported clock domains are the ones described in

perfetto.protos.ClockSnapshot. However, custom clock IDs (>=64) are

reserved for internal use by the SDK for the time being.

The timestamp value should be in nanoseconds regardless of the clock domain.