Split off from issue 712751.  With the following build it looks like there might be some HQEs missing which run on behalf of another suite:
https://uberchromegw.corp.google.com/i/chromeos/builders/veyron_minnie-chrome-pfq/builds/1199 -> "Suite details" -> https://viceroy.corp.google.com/chromeos/suite_details?build_id=1553201

In particular, I'm thinking if an HQE starts before the suite starts and runs into the time of the suite it might not be picked up.

From dut-status -f chromeos4-row9-rack11-host13 -d 48:

The following HQE's are missing from the timeline and occur after:
    2017-05-28 05:27:03  OK http://cautotest/tko/retrieve_logs.cgi?job=/results/hosts/chromeos4-row9-rack11-host13/572722-provision/
The following HQE's are present:
    2017-05-28 05:24:59  -- http://cautotest/tko/retrieve_logs.cgi?job=/results/120070561-chromeos-test/
    2017-05-28 05:24:18  OK http://cautotest/tko/retrieve_logs.cgi?job=/results/hosts/chromeos4-row9-rack11-host13/572701-reset/
    2017-05-28 05:19:09  -- http://cautotest/tko/retrieve_logs.cgi?job=/results/120070552-chromeos-test/
    2017-05-28 05:04:36  OK http://cautotest/tko/retrieve_logs.cgi?job=/results/hosts/chromeos4-row9-rack11-host13/572576-provision/
    2017-05-28 05:03:20  -- http://cautotest/tko/retrieve_logs.cgi?job=/results/120045391-chromeos-test/
The following HQE's are missing from the timeline and occur before:
    2017-05-28 04:49:11  OK http://cautotest/tko/retrieve_logs.cgi?job=/results/hosts/chromeos4-row9-rack11-host13/572492-provision/
    2017-05-28 04:46:48  -- http://cautotest/tko/retrieve_logs.cgi?job=/results/120045453-chromeos-test/
    2017-05-28 04:46:13  OK http://cautotest/tko/retrieve_logs.cgi?job=/results/hosts/chromeos4-row9-rack11-host13/572475-reset/
    2017-05-28 04:43:44  -- http://cautotest/tko/retrieve_logs.cgi?job=/results/120045270-chromeos-test/
    2017-05-28 04:42:57  OK http://cautotest/tko/retrieve_logs.cgi?job=/results/hosts/chromeos4-row9-rack11-host13/572448-reset/
    2017-05-28 04:37:31  -- http://cautotest/tko/retrieve_logs.cgi?job=/results/120044731-chromeos-test/
    2017-05-28 04:22:52  OK http://cautotest/tko/retrieve_logs.cgi?job=/results/hosts/chromeos4-row9-rack11-host13/572343-provision/