Merge "binderLibTest: filling buffer" am: 184a9c7331 am: 85d28f8f6c am: 9fee4a7147

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2151721

Change-Id: Iec71b532ec9c116e75c56199911dadad0d402f4a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>