Merge cherrypicks of [19170127] into tm-release. Change-Id: I4341b8873634927e21ea9ef107c4a77e0cf36284
Perfetto is a production-grade open-source stack for performance instrumentation and trace analysis. It offers services and libraries and for recording system-level and app-level traces, native + java heap profiling, a library for analyzing traces using SQL and a web-based UI to visualize and explore multi-GB traces.
See https://perfetto.dev/docs or the /docs/ directory for documentation.