[ Merge of http://go/wvgerrit/67884 ] Now that we can use C++11, we should use the cross-platform std::mutex type, not the custom pthread version. Bug: 111850982 Test: WV unit/integration tests Change-Id: If2fde2836826c5184609e6b1f3a6511206bd4594
[ Merge of http://go/wvgerrit/67884 ] Now that we can use C++11, we should use the cross-platform std::mutex type, not the custom pthread version. Bug: 111850982 Test: WV unit/integration tests Change-Id: If2fde2836826c5184609e6b1f3a6511206bd4594