[QA] barry -1s

[Jon Robson]

Just an FYI, a recent change in the selenium gem is causing the bot
Barry to report false positives for MobileFrontend patches. If you see
a -1 from him on your MobileFrontend patch, please read the log in the
mean time - if only 2 tests are failing it's highly likely your patch
is fine.

+2ers please consult the log prior to merging and overriding Barry's
-1 whilst the upstream bug [1] remains unfixed.

QAers the problem seems to be related to a recent change to the
selenium gem that requires a new user for new page creations. Would be
great to fix this...

[1] https://phabricator.wikimedia.org/T106343#1465574