Merge "Debug MemoryTests activity count" into udc-dev am: 56c5189c3c am: a4e8ceaf31

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

Change-Id: Ie1944a098120e6355136d3fda756a09eccf0ddf0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>