gnome-base/gnome-extra-apps-3.14.0-r1 depends on media-gfx/gnome-photos which pulls in app-misc/tracker unconditionally.
Already fixed: http://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/gnome-base/gnome-extra-apps/gnome-extra-apps-3.14.0-r1.ebuild?r1=1.2&r2=1.3