tree d0c00564132e62e4d67b478cfc2d61e95334ba1b
parent 9566c37caa51e62ed963fc7fcc7354a6ef9b66e4
author Chris Craik <ccraik@google.com> 1667422062 -0700
committer Chris Craik <ccraik@google.com> 1667449475 -0700

New APIs PerfettoTrace.record and PerfettoTraceRule

Test: PerfettoTraceRuleTest
Relnote: "Added experimental new APIs `PerfettoTrace.record {}` and
`PerfettoTraceRule` to capture Perfetto traces (also known as System
Traces) as part of a test, to inspect test behavior and performance."

Also rewrote PerfettoTraceRuleTest to look at outputs instead of
inspecting trace state to avoid flakes.

Change-Id: I3ba165beded0d8aabde791e3ac1b786d415404ed