[automerger skipped] SF: Extract virtual display allocation from CE am: 1394860b am: 5a0a2214 -s ours

am skip reason: Merged-In I209b245966e544d5ff55d5d118140cfcfa85db15 with SHA-1 1394860b is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/14687436

Change-Id: I5ef21d6c8fabf786f8e681374d481b48c1c9e1a1