am 751dee37: Merge "BaseMutex::IsExclusiveHeld should only be called on self."
am 751dee37: Merge "BaseMutex::IsExclusiveHeld should only be called on self."

* commit '751dee376dcd972af996106a4c32ab4964c1f867':
  BaseMutex::IsExclusiveHeld should only be called on self.

treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst,treadstoneproject/artinst