[automerger skipped] SF: make RenderEngineThreaded::waitUntilInitialized more efficient am: d6ac779587 -s ours

am skip reason: Merged-In I4d61240a76f3ca814c28ccba62626f8b43a125cd with SHA-1 36135d0e0f is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/25923656

Change-Id: Ia6647944829f0f724746fcb4c828d7d54ca30895
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>