Fix starting drivers on android in run-webkit-tests after r156342.

I forgot to update the android server process wrapper; too many patches in
flight.

TBR=ojan@chromium.org
BUG=

Review URL: https://codereview.chromium.org/23053004

git-svn-id: svn://svn.chromium.org/blink/trunk@156359 bbb929c8-8fbe-4397-9dbb-9b2b20218538