Merge "Merge "Flatten LauncherUIChanged / Migrate Launcher Workspace snapshot...

Merge "Merge "Flatten LauncherUIChanged / Migrate Launcher Workspace snapshot data" into rvc-dev am: b3a298d4 am: b724f3d1 am: 1fdf0f7c" into mainline-prod am: a8997f2a am: a6edcf99

Change-Id: I250fadb37d8891ae770c7af1f01c0b723d447327