Merge "[flexiglass] Bouncer throttling - view models." into udc-dev am: 2907102b7b am: 7fa5587311

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23303129

Change-Id: Ie6de0ac008f064386957d7c2e9ec8dc553816494
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>