Merge "Improve synchronization of ProcessCpuTracker" into main am: 564f051428 am: 28d990bde1

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

Change-Id: Ic434cf8e2030e3db6424585f6208185a4f35773c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>