tree 99c89626bda53f5c4e6654a467f0494d582064e3
parent deaac40ea7e7d3754d917808fcc1aad52d8f52b7
author Elliott Hughes <enh@google.com> 1332988467 -0700
committer Elliott Hughes <enh@google.com> 1332988467 -0700

Clean up Mutex a little and add the missing pieces for Mac OS.

This -- as you'd expect, given that we're fine on bionic and glibc --
didn't find any bugs. But it's another step towards completeness and
lets me rule out Mac pthread_mutex_t weirdness as a potential cause of
our Mac dex2oat crashes.

Change-Id: If3f4aacf8dbc7c7b9fd6b8932bc01616ccf86b47