Change check_ethernet.hook to try repairing at every failure.

This changes check_ethernet.hook to try restarting the network
everytime the network is found to be down, rather than only as
a last resort before trying to reboot.

BUG=chromium:354944
TEST=run script manually with network disconnected

Change-Id: I1c9f08f8e4495a6f196cc8e8f31e68b778ac695e
Reviewed-on: https://chromium-review.googlesource.com/199678
Tested-by: Richard Barnette <jrbarnette@chromium.org>
Reviewed-by: Chris Sosa <sosa@chromium.org>
Commit-Queue: Richard Barnette <jrbarnette@chromium.org>
1 file changed