Bug 838756: Fix out-of-order init list for UnixSocketImpl constructor. r=qDot

ipc/unixsocket/UnixSocket.cpp

@@ -47,10 +47,10 @@ public:
                  const nsACString& aAddress)
     : mConsumer(aConsumer)
     , mIOLoop(nullptr)
-    , mTask(nullptr)
     , mFd(-1)
     , mConnector(aConnector)
     , mCurrentTaskIsCanceled(false)
+    , mTask(nullptr)
     , mAddress(aAddress)
   {
   }