chromeos-base/protofiles: Bring in StartUpFlags adjustments.

This CL brings in the changes made on the browser side as per
crrev.com/c/2565637. The change is applied via a patch file as opposed
to a proper uprev due to the latter being blocked on
crbug.com/1116244. This CL unblocks landing of subsequent code
changes, once the next proper uprev happens the patch should be
dropped again.

BUG=chromium:1073940
TEST=Compiles and passes tests.

Cq-Depend: chromium:2560128
Change-Id: Ia20c5f70fbd7f7ba1cc77e0bdf544b30022563bc
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/chromiumos-overlay/+/2593204
Tested-by: Mattias Nissler <mnissler@chromium.org>
Commit-Queue: Mattias Nissler <mnissler@chromium.org>
Reviewed-by: Pavol Marko <pmarko@chromium.org>
Reviewed-by: Allen Webb <allenwebb@google.com>
2 files changed