There is no TRACE_EVENT_ASYNC_STEP in the perfetto legacy API.
The corresponding legacy API that matches best is
TRACE_EVENT_ASYNC_STEP_INTO.
Bug: b/42226290
Change-Id: I6725973895878e34d96b6cd3314ab8de402a911b
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/349120
Reviewed-by: Erik Språng <sprang@webrtc.org>
Commit-Queue: Evan Shrubsole <eshr@google.com>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#42219}