Merge "Add ViewController for KeyguardBottomAreaView." into tm-qpr-dev am: 5086c853e1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19279468

Change-Id: I252be0b62edc4f6c9a8fdabc56f74e8be7ca344c
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>