Bug 1022117 - Add missing gdk_screen_get_number symbol to mozgtk stub. r=karlt
Bug 1022259 - Only load Gtk+2 stub for plugin processes in Gtk+3 builds. r=bent,r=karlt
Bug 1022425 - Force mozgtk stubs dependency on gtk libraries when -Wl,--as-needed is used. r=mshal
Bug 933313 - Add missing #include for non-unified builds. r=me