Set infra waterfall to auto_reboot
Set infra waterfall to auto_reboot

I heavily suspect turning on auto_reboot on the infra waterfall would help
reduce the flakiness of karma tests, because karma might be bad at cleaning up
leftover Chrome processes.

BUG=

Review URL: https://codereview.chromium.org/1416313005

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@297472 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build