commit bc999ddb2d36dfcfdf57fd7e4ebebbe9217cd586
author Josh Gao <jmgao@google.com> Wed Jul 24 15:40:57 2019 -0700
committer android-build-team Robot <android-build-team-robot@google.com> Fri Jul 26 02:16:16 2019 +0000
tree c97237fffe8ac848a249646378ff9bd720e6ca0b
parent 185fc7dfa4949217705060a62b6f6efaa51bc688

SharedMemory: break Cleaner reference cycle.

Previously, the Cleaner we create to close the ashmem file descriptor
used a thunk that held a strong reference to the FileDescriptor we
wanted to clean up, which prevented the Cleaner from ever running.

Break the cycle by storing the integer value of the file descriptor
instead.

Bug: http://b/138323667
Test: treehugger
Change-Id: I613a7d035892032f9567d59acb04672957c96011
(cherry picked from commit 6ca916a657cd56158212a57601108716ce78cbe8)
(cherry picked from commit 390d9e6a1806626eb521d55a36b1578d28714cc8)