[automerger skipped] Undefine NAN after including it in Looper.h am: 2dd55590fd -s ours am: e5f44158af -s ours am: 94f25b7caa -s ours

am skip reason: Merged-In I63bba8ea809a12571ddc88cd1d20f2adeedf0b30 with SHA-1 84a19f64f5 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/hardware/interfaces/+/15685265

Change-Id: I6b23a16066d7e51bc8771ca950dd66df428ef3ea