This macro is identical to NS_INTERFACE_MAP_END and encourages the reader to think that there's something extra-special threadsafe about QI implementations that use the macro, when in reality there's nothing of the sort.
MozReview-Commit-ID: 9Z6i9yWoQwj --HG-- extra : rebase_source : dfa8f9fad42851b92cf20a8aa9ae5b5b114b647f