Merge "onPostComposition doesnt need to run on layers without queued frames" into sc-dev am: adbd486a am: 927bd8f0 am: e282415f

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/14949468

Change-Id: I9852537fd5fbacd1126ca7fe71a72240d567bf9e