Merge "Improve synchronization of ProcessCpuTracker" into main am: 564f051428 am: dc90d17684

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2833790

Change-Id: I382ed024853e3de277de1974cd538993ec84fdb9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>