Cherry-pick key part of https://chromium-review.googlesource.com/200243

This CL increases the timeout of all hwtesting on branches while also
decreasing their priorities.

BUG=chromium:373512
TEST=Unittests

Change-Id: I8931c7774208f328273ab10af56030cd2cfcb697
Reviewed-on: https://chromium-review.googlesource.com/200463
Reviewed-by: Chris Sosa <sosa@chromium.org>
Tested-by: Chris Sosa <sosa@chromium.org>
2 files changed