[automerger skipped] Don't cache layers that explicitly disable dimming. am: fd378ac6 -s ours

am skip reason: Merged-In I184e221fa4431e4751002c7304bf89d2fe98fe20 with SHA-1 f45ad66b is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/27095128



Change-Id: I07200a30c692f3da93cf12eec14620e749cef825
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>