Merge "Create IMPROVED_HUN_ANIMATIONS flag" into udc-dev am: 7631bf4a am: 4b098669 am: 32d5a53d am: 6c339e93

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23284680



Change-Id: Id3be01d86a46e7026bc96c8e9816f7d4fb4fd322
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>