Merge "Add OnGlobalLayout listener to WidgetFloatingView" into sc-dev am: 9297064b2e am: ebc73b1139

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14440777

Change-Id: I060c277a38dda1fb61d580d509f2028de9a4b11c