Highlight dependencies to abandoned changes by red background

On the change screen dependencies to outdated patch sets are
highlighted by a red background because they prevent the change from
being merged. The same is true if a change depends on an abandoned
change. This is why dependencies to abandoned changes should be
highlighted by a red background as well.

Change-Id: I5e81b08b1d41aa3b097b5f76293e62b0e6270b4a
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>
1 file changed