Merge "Merge "[Unfold Animation] Expose hinge angle provider interface" into...

Merge "Merge "[Unfold Animation] Expose hinge angle provider interface" into tm-qpr-dev am: 91a76fbd am: 2ec94ab5" into udc-dev am: bc890bb1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21547693



Change-Id: I520e7b7b8308958ee5bb5483814ee9f2d52ccbbf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>