Merge "Debug MemoryTests activity count" into udc-dev am: 56c5189c3c

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/23540634

Change-Id: Id9959d1305bb5838d026d3e613e86b16bce50a49
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>