Example build: 
https://uberchromegw.corp.google.com/i/chromeos/builders/peach_pit-paladin/builds/13721

Suite:
http://cautotest.corp.google.com/afe/#tab_id=view_job&object_id=79019192

Suite logs:
https://storage.cloud.google.com/chromeos-autotest-results/79019192-chromeos-test/hostless/debug/autoserv.DEBUG?_ga=1.171906339.26102705.1449633781


In particular, I see that we retried video_ChromeRTCHWDecodeUsed several times although it returns TEST_NA each time. This added a few minutes to the suite for no good reason, which may have contributed to timeout.