There is a problem: www/nspluginwrapper has dependency to linux-c6-gtk2, but linux-flashplayer has updated dependency to linux-c7-gtk2, so flash player want's c7 and nspluginwrapper want's c6. Update nspluginwrapper to the c7 (CentOS 7) please.
linux-flashplayer and nspluginwrapper can use both c6 and c7. They will use whatever linux_base port you have installed or c6 if you have nothing installed. If you want c7 then delete all c6 ports and the ports that depend on them (pkg del -x linux-c6 linux_base-c6). Then make sure you have linux_base-c7 installed and then rebuild/reinstall linux ports like nspluginwrapper.
But default binary package (when installing with pkg) has still dependency to linux-c6-gtk2, so it's not possible to use binary nspluginwraper package with instaled c7 userland now, right? So, general move to *c7* dependencies in prebuilded pkg packages is still not actual for now and I need to wait or compile everything myself, if I want *c7* userland, right?
(In reply to Petr Fischer from comment #2) That's correct, c6 is still the ports tree default and the decision to depend on c6 or c7 is made when the packages are built. We currently cannot create packages that provide the option to the user at installation. So, if you want ports like nspluginwrapper to use c7 you have to build them yourself.