Merge "Support entering split screen with a shortcut and an intent" into tm-qpr-dev am: 0b3ff821

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21256452



Change-Id: I6a4eeb9c630be09fa94ca855c916aa1471913753
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>