The activity_ is only instantiated if profiling is enabled.
Remove the HIP private global record ID. Instead, use the correlation ID
stored in the hip_api_data_t by the profiler while the last HIP function
is in scope.
For NDRange and Copy commands, store the kernel name and byte size
(respectively) in the record.
General cleanups to improve the code's readability.
Change-Id: I01907484b0d9611eb9440c3a7c4865479dc42289
[ROCm/clr commit: 4fbae91468]
Laurent Morichetti
cbcc94b9e3