We always do something like "fetchurl channelProduct", so let's move it
to getChannel directly so we can avoid those fetchurl calls all over the
place.
Also, we can still access subattributes from the fetchurl call if we
need to, so there really is no need to expose the product's attributes
directly.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>
We now should have only the default.nix left in the source directory and
we can start to factor out the pieces into the Chromium main derivation
attributes.
Signed-off-by: aszlig <aszlig@redmoonstudios.org>