[automerger skipped] [DO NOT MERGE] Update onBackPressed() function signature am: aaeebdaff9 am: bc4ca064c1 -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20155974

Change-Id: I209dafb7f472b51058b3b7ac0513ed509301ae70
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>