The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/overlays/chromiumos-overlay/+/62dc5fda05b64b2026124f5c50e499f424387273

commit 62dc5fda05b64b2026124f5c50e499f424387273
Author: Patrick Berny <pberny@chromium.org>
Date: Tue Mar 27 00:03:29 2018

chromeos-firmware-null: Implement dummy src_xyz()

Implement dummy src_unpack, src_compile, src_install, src_test to
override the functions coming from cros-firmware.eclass that require
actual FW to be there.

BUG= chromium:825421 
TEST=setup workspace with public source only
     cros_workon-coral start chromeos-firmware-null
     emerge-coral chromeos-firmware-null

Change-Id: Ib9d6f6290e4cfba7ba96fce2076d89887e18bd25
Reviewed-on: https://chromium-review.googlesource.com/979162
Commit-Ready: Patrick Berny <pberny@chromium.org>
Tested-by: Patrick Berny <pberny@chromium.org>
Reviewed-by: Patrick Berny <pberny@chromium.org>
Reviewed-by: YH Lin <yueherngl@chromium.org>

[modify] https://crrev.com/62dc5fda05b64b2026124f5c50e499f424387273/chromeos-base/chromeos-firmware-null/chromeos-firmware-null-9999.ebuild

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/overlays/chromiumos-overlay/+/9a393362bfa39ddd5b5f6c92fdb83824c099c313

commit 9a393362bfa39ddd5b5f6c92fdb83824c099c313
Author: Patrick Berny <pberny@chromium.org>
Date: Thu Apr 12 13:18:01 2018

chromeos-firmware-null: Implement dummy src_xyz()

Implement dummy src_unpack, src_compile, src_install, src_test to
override the functions coming from cros-firmware.eclass that require
actual FW to be there.

BUG= chromium:825421 
TEST=setup workspace with public source only
     cros_workon-coral start chromeos-firmware-null
     emerge-coral chromeos-firmware-null

Change-Id: Ib9d6f6290e4cfba7ba96fce2076d89887e18bd25
Reviewed-on: https://chromium-review.googlesource.com/979162
Commit-Ready: Patrick Berny <pberny@chromium.org>
Tested-by: Patrick Berny <pberny@chromium.org>
Reviewed-by: Patrick Berny <pberny@chromium.org>
Reviewed-by: YH Lin <yueherngl@chromium.org>
(cherry picked from commit 62dc5fda05b64b2026124f5c50e499f424387273)
Reviewed-on: https://chromium-review.googlesource.com/1009682
Reviewed-by: Ren Kuo <ren.kuo@quanta.corp-partner.google.com>
Commit-Queue: Ren Kuo <ren.kuo@quanta.corp-partner.google.com>
Tested-by: Ren Kuo <ren.kuo@quanta.corp-partner.google.com>

[modify] https://crrev.com/9a393362bfa39ddd5b5f6c92fdb83824c099c313/chromeos-base/chromeos-firmware-null/chromeos-firmware-null-9999.ebuild

This bug has an owner, thus, it's been triaged. Changing status to "assigned".