commit c81f53f7f114962f757312ac884a279035fe0584
author Josh Gao <jmgao@google.com> Thu Aug 09 15:09:02 2018 -0700
committer Josh Gao <jmgao@google.com> Thu Aug 09 16:32:42 2018 -0700
tree 48e247d892075eea80449f089e8756548e2debde
parent 9257722c5c091bf8c98a343401f0ff27e50fe29f

MemoryIntArray: track the owned file descriptor in a PFD.

AUPT is triggering an fdsan diagnostic when creating a temporary
ParcelFileDescriptor to write to a Parcel. This code seems correct at
first glance, so under the assumption that some other code is closing
the file descriptor out from under us, keep our owned file descriptor
around as a ParcelFileDescriptor to catch the perpetrator in the act.

Bug: http://b/112405224
Test: atest MemoryIntArrayTest
      (testAshmemSizeMatchesMemoryIntArraySize failed/crashed before, fails now)
Change-Id: Ie8ff7562c78ecde4cf1757d572ecb733213cc975