Merge "GameManagerService: Only apply game mode when the service is on the...

Merge "GameManagerService: Only apply game mode when the service is on the TOP" into udc-d1-dev am: c7d85952

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23814321



Change-Id: If25e453b32c2150d6e93fdbe39f494fecf518413
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>