Bug 1530660: Fix registration for nsSafeFileOutputStream. r=erahm

Differential Revision: https://phabricator.services.mozilla.com/D35490

--HG--
extra : rebase_source : 7b343c0e77ce49c99303e6383786a1be782cdd42

netwerk/build/components.conf

@@ -340,7 +340,7 @@ Classes = [
     {
         'cid': '{a181af0d-68b8-4308-94db-d4f859058215}',
         'contract_ids': ['@mozilla.org/network/safe-file-output-stream;1'],
-        'type': 'nsAtomicFileOutputStream',
+        'type': 'nsSafeFileOutputStream',
         'headers': ['nsFileStreams.h'],
     },
     {