kAckChannel       387 sandbox/win/src/ipc_unittest.cc   ::InterlockedExchange(events->state, kAckChannel);
kAckChannel       494 sandbox/win/src/ipc_unittest.cc   ::InterlockedExchange(events->state, kAckChannel);
kAckChannel       379 sandbox/win/src/sharedmem_ipc_server.cc                                  kAckChannel, kBusyChannel);
kAckChannel       396 sandbox/win/src/sharedmem_ipc_server.cc   ::InterlockedExchange(&service_context->channel->state, kAckChannel);