Fix events so that VisualStabilityCoordinator blocks shade recalculation during activity launch animation am: 8b636131 am: c85d40aa am: baa1249c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18323638



Change-Id: I26a147c32d56a2ef9c966a87a4fbea8473c73e1e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>