Add more protection against flakiness of VM tests on builders.

BUG=chromium:260036
TEST=Ran it, pyflakes, pylint.

Change-Id: Id1b08673eb28f700e43c50a5260358f093ddf333
Reviewed-on: https://gerrit.chromium.org/gerrit/62351
Commit-Queue: Chris Sosa <sosa@chromium.org>
Reviewed-by: Chris Sosa <sosa@chromium.org>
Tested-by: Chris Sosa <sosa@chromium.org>
1 file changed