Merge "Fix default occlude animation to scale from 50%, not 0%." into tm-qpr-dev am: 75920512

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20501231



Change-Id: I2ba269673b3548e6e267d478b6e75811eaed9ad1
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>