[automerger skipped] Merge "Fall back to default custom shortcuts if custom...

[automerger skipped] Merge "Fall back to default custom shortcuts if custom shortcuts are disabled" into udc-dev am: 1fe8b30f am: ebbb7045 -s ours am: e3a70d6f -s ours am: 40ed1d78 -s ours

am skip reason: Merged-In I6d74cf9960a09b7d3261154e711f824058b0d25a with SHA-1 4284c8f5 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23197030



Change-Id: I01bd9d10c4c4839a3cfe3a3c536b8337045c5a92
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>