Merge "Fix an issue with concurrent modification on widget holders list" into...

Merge "Fix an issue with concurrent modification on widget holders list" into tm-qpr-dev am: f22345ea am: bc74b530

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/21694006



Change-Id: I7bd998c8ea8c453f378fc2b65a7eadd8ea11ea96
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>