This allows us to call kernel.FDMap.DecRef without holding mutexes cleanly. PiperOrigin-RevId: 211139657 Change-Id: Ie59d5210fb9282e1950e2e40323df7264a01bcec
PiperOrigin-RevId: 194583126 Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463