Merge "Fix flicker when create split from taskbar" into tm-qpr-dev am: 417cc2db

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22149375



Change-Id: I3b44904ea6bf23c77e47e0e324f92459fa432cc6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>