tree df4865e6400221834d6dcd239e2426634b18f716
parent 9e921bc034450e35c2b5d45cc09a26920ad0d6e6
author Elliott Hughes <enh@google.com> 1327953396 -0800
committer Elliott Hughes <enh@google.com> 1327953396 -0800

Remove some now-incorrect and now-obsolete DCHECKs.

~Mutex already checks that the mutex isn't locked, and already has an
exception for the case where we're shutting down.

Change-Id: Ide2343fb5fe06ee8a5014023bc1817ec142e5ec8