Merge "Add a limit on no. of active sessions, committed/leased blobs." into rvc-dev am: c9f2fdc0ba am: 416d7d1eac

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11978930

Change-Id: Id648abfd3a73e5f5c7ffe5efee0c1db0b7f0f2d9