Merge "Pre-set splash screen as icon-style when launch activity from Launcher." into sc-dev am: c3db44bbce am: 6f56a61d4c am: 08d06351d1

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/14773251

Change-Id: I607d35a1066b278e4b8225092c25b70d796e154a