Merge "Make usage of revocable fds for reads configurable." into rvc-dev am: 14849cfb am: 081246dc am: 8d067c97

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11921569

Change-Id: I54a7091e949e0defddb9d1b4d6e0a9dea2965346