Merge "Use semaphore instead of condition variable" into tm-dev am: 38332d52...

Merge "Use semaphore instead of condition variable" into tm-dev am: 38332d52 am: 52010fe2 am: e71f18e9

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/18291016



Change-Id: I56f875ca567e6dd2952d16489615861c8725a3ec
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>