Merge "Delaying initializing "is launcher3" flag" into sc-dev am: 3941bc65e3 am: 8553d908c2 am: cbe841412d

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14793019

Change-Id: I5e5755eeec898609bde86df9b7d7a0bf55e31ddf