media-libs/gst-plugins-bad-1.14: USE=gtk transtion to gst-plugins-gtk

Some packages requiring gtksink are depending on gst-plugins-bad[gtk],
so keep it working for now via proxying the dep towards new
gst-plugins-gtk split package.
This will likely be removed soon, after consumers (pitivi and corebird)
have the dependency changed to gtk-plugins-gtk in revbumps.

Package-Manager: Portage-2.3.40, Repoman-2.3.9

media-libs/gst-plugins-bad/gst-plugins-bad-1.14.1.ebuild

@@ -13,7 +13,7 @@ LICENSE="LGPL-2"
 KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~mips ~ppc ~ppc64 ~sparc ~x86 ~amd64-fbsd ~x86-fbsd ~amd64-linux ~x86-linux"
 
 # TODO: egl and gtk IUSE only for transition
-IUSE="X bzip2 +egl gles2 gtk +introspection +opengl +orc vcd vnc wayland"
+IUSE="X bzip2 +egl gles2 gtk +introspection +opengl +orc vcd vnc wayland" # Keep default IUSE mirrored with gst-plugins-base where relevant
 
 # X11 is automagic for now, upstream #709530 - only used by librfb USE=vnc plugin
 # We mirror opengl/gles2 from -base to ensure no automagic openglmixers plugin (with "opengl?" it'd still get built with USE=-opengl here)
@@ -31,8 +31,9 @@ RDEPEND="
 		>=dev-libs/wayland-protocols-1.4
 	)
 
+	gtk? ( >=media-plugins/gst-plugins-gtk-${PV}:${SLOT}[${MULTILIB_USEDEP}] )
 	orc? ( >=dev-lang/orc-0.4.17[${MULTILIB_USEDEP}] )
-" #	gtk? ( media-plugins/gst-plugins-gtk-${PV}:${SLOT}[${MULTILIB_USEDEP}] ) - TODO: Keep gtk plugin pulled in via USE=gtk for transition
+"
 
 DEPEND="${RDEPEND}
 	>=dev-util/gtk-doc-am-1.12