Merge "Recompute the mNextFrameStartUnstuffed on every frame" into tm-qpr-dev am: bb64b1bf

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18724189



Change-Id: I6743fdceaedb5c43e015b475c5c7712d643cc4ce
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>