diff -r 000000000000 -r 6474c204b198 netwerk/base/src/nsTransportUtils.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/netwerk/base/src/nsTransportUtils.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,29 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsTransportUtils_h__
+#define nsTransportUtils_h__
+
+#include "nsITransport.h"
+
+/**
+ * This function returns a proxy object for a transport event sink instance.
+ * The transport event sink will be called on the thread indicated by the
+ * given event target.  Like events are automatically coalesced.  This means
+ * that for example if the status value is the same from event to event, and
+ * the previous event has not yet been delivered, then only one event will
+ * be delivered.  The progress reported will be that from the second event.
+ * If aCoalesceAllEvents is true, then any undelivered event will be replaced
+ * with the next event if it arrives early enough.  This option should be used
+ * cautiously since it can cause states to be effectively skipped.  Coalescing
+ * events can help prevent a backlog of unprocessed transport events in the
+ * case that the target thread is overworked.
+ */
+NS_HIDDEN_(nsresult)
+net_NewTransportEventSinkProxy(nsITransportEventSink **aResult,
+                               nsITransportEventSink *aSink,
+                               nsIEventTarget *aTarget,
+                               bool aCoalesceAllEvents = false);
+
+#endif // nsTransportUtils_h__