Merge "Log widgets source." into sc-dev am: f9acf1d5d4 am: 669bac8bd6 am: 8235d49e74

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

Change-Id: Ieb8804472768bfc03fdc53b7bc723c67a62d7539