[automerger skipped] Merge "Fix flicker when unlocking the screen." into...

[automerger skipped] Merge "Fix flicker when unlocking the screen." into sc-dev am: 6431f95d am: 7ee74471 -s ours am: f844a425 -s ours

am skip reason: Merged-In Iacd46b99c5a86c8f7a7706b91b0b78a3beb4c414 with SHA-1 c2dda240 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15660797

Change-Id: I692adf3efea47e412454eaedf2a7a3dd310b4c9a