Fix lint-webkitpy; I forgot to update this as part of r154450.

(https://chromiumcodereview.appspot.com/19491003)

TBR=ojan@chromium.org
BUG=230706

Review URL: https://codereview.chromium.org/19722002

git-svn-id: svn://svn.chromium.org/blink/trunk@154462 bbb929c8-8fbe-4397-9dbb-9b2b20218538