Merge "getBlobAshmemSize -> getOpenAshmemSize" am: b146c8bedb am: ab8578378d am: 4ef3dc86b8 am: 7402f8c51b

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1854070

Change-Id: I4bb5829ffcad5511dd5fdb4838dc9fb75fc76acc