Merge "Updating method for getting themed icon" into sc-dev am: a71269e372 am: 867aeb5436 am: 6150dd4a64

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14682086

Change-Id: I3f996e3fe83a9c093c24b041c0769647296c82bc