Merge "StatusBar treatment for Letterbox - Add flag to Flags.java" into...

Merge "StatusBar treatment for Letterbox - Add flag to Flags.java" into tm-qpr-dev am: 071f3115 am: 5a8357a1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19246699



Change-Id: I2930f7908c9223c3f41f0d60eb24187635104317
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>