https://chromium-review.googlesource.com/c/catapult/+/1308815 and then https://chromium-review.googlesource.com/c/chromium/src/+/1313548 will cause expected changes in *_cpu_time_per_frame metrics.

This bug is to track all changes in those metrics and make sure that they are expected (and create new bugs for the ones that are not).