Merge "Log widgets source." into sc-dev am: f9acf1d5d4 am: 0f8e5a8a3f

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14690879

Change-Id: If1ec9ea5acee39e6b83b5beb51a3cb109aaf219b