The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/b32fb4ba59b054feb24ee3acb8a9b0a244af4ea6

commit b32fb4ba59b054feb24ee3acb8a9b0a244af4ea6
Author: Xiaochu Liu <xiaochu@chromium.org>
Date: Wed Feb 07 19:02:04 2018

component updater: report error code on Load API return

We see failures for autotest platform_AddPrinter which downloads
component from time to time. Being able to provide error code reduces
debug time and help decide whether it's test flakenss or feature regressions.

BUG= chromium:801715 
TEST=platform_AddPrinter.epson

Change-Id: I3f5e48cdb4071ef83a4954ed2c25afcee333e58c
Reviewed-on: https://chromium-review.googlesource.com/902461
Reviewed-by: Toni Barzic <tbarzic@chromium.org>
Reviewed-by: Joshua Pawlicki <waffles@chromium.org>
Reviewed-by: Dan Erat <derat@chromium.org>
Commit-Queue: Xiaochu Liu <xiaochu@chromium.org>
Cr-Commit-Position: refs/heads/master@{#535085}
[modify] https://crrev.com/b32fb4ba59b054feb24ee3acb8a9b0a244af4ea6/chrome/browser/chromeos/dbus/chrome_component_updater_service_provider_delegate.cc
[modify] https://crrev.com/b32fb4ba59b054feb24ee3acb8a9b0a244af4ea6/chrome/browser/chromeos/printing/printer_configurer.cc
[modify] https://crrev.com/b32fb4ba59b054feb24ee3acb8a9b0a244af4ea6/chrome/browser/component_updater/cros_component_installer.cc
[modify] https://crrev.com/b32fb4ba59b054feb24ee3acb8a9b0a244af4ea6/chrome/browser/component_updater/cros_component_installer.h
[modify] https://crrev.com/b32fb4ba59b054feb24ee3acb8a9b0a244af4ea6/chrome/browser/extensions/api/media_perception_private/media_perception_api_delegate_chromeos.cc