... which is needed to negotiate the SPDY protocol.
[ChangeLog][QtNetwork][QSslConfiguration] Added support for the Next
Protocol Negotiation (NPN) TLS extension.
Task-number: QTBUG-33208
Change-Id: I3c945f9b7e2d2ffb0814bfdd3e87de1dae6c20ef
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@digia.com>