tree abf555db93941102f9be1454525df66936da1559
parent 8d1a8c00b89775a251ac5e26a557f81ac1491a44
author Mathieu Chartier <mathieuc@google.com> 1435340828 -0700
committer Mathieu Chartier <mathieuc@google.com> 1435347975 -0700

Require mutator lock for DeleteLocalRef

There was a race condition where suspended threads could call
DeleteLocalRef while the GC was marking their roots. This could
cause the GC to attempt to mark a null object.

Bug: 22119403

Change-Id: I962c717bb87b2acb2a4710a2d7ab16793e031401