tree 99b4e0bf42d5bb36cff3997f3ec439095df22630
parent cc95c5dcc848552c87d1368fbb655a93666b6659
author Eric Shienbrood <ers@chromium.org> 1333478504 -0400
committer Gerrit <chrome-bot@google.com> 1333495167 -0700

shill: Supplying an APN with no "apn" field clears Cellular.APN.

Changed semantics of setting the Cellular.APN property to match
flimflam: if the supplied APN has a missing or empty "apn" field,
the user-specified APN is cleared.

BUG=chromium-os:28899
TEST=Added unit test, ran on platform using "set-apn -c" from
command line.

Change-Id: I0092b275b6322768ad7517089bb9877e76025692
Reviewed-on: https://gerrit.chromium.org/gerrit/19536
Commit-Ready: Eric Shienbrood <ers@chromium.org>
Reviewed-by: Eric Shienbrood <ers@chromium.org>
Tested-by: Eric Shienbrood <ers@chromium.org>