Fix for bug 121951 -- make PR_Poll on Mac work with layered file descriptors. r=wtc, r=gordon
Fix for bug 121951 -- make PR_Poll on Mac work with layered file descriptors. r=wtc, r=gordon

thespooler/nspr,thespooler/nspr,thespooler/nspr,thespooler/nspr,thespooler/nspr