Addressing with go/print-management-systems-dd
username will be sent when requested with enterprise policy.

Issue 904863 has been merged into this issue.

Not sure if you have a bug for this already.  Please dup if you do.

 Issue 918142  has been merged into this issue.

 Issue 911318  has been merged into this issue.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/490ab0c8364fdf4b25829ff56b3df401b988bec8

commit 490ab0c8364fdf4b25829ff56b3df401b988bec8
Author: Vladislav Kuzkokov <vkuzkokov@chromium.org>
Date: Wed Jan 16 11:21:57 2019

Partial cleanup use of base::Value in printing backend.

Bug: 660612
Change-Id: I75404c19cf794abee8eff74e78005226139682b9
Reviewed-on: https://chromium-review.googlesource.com/c/1387467
Reviewed-by: Rebekah Potter <rbpotter@chromium.org>
Reviewed-by: Jan Wilken Dörrie <jdoerrie@chromium.org>
Commit-Queue: Vladislav Kuzkokov <vkuzkokov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#623194}
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/chrome/browser/printing/print_job_worker.cc
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/chrome/browser/printing/print_job_worker.h
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/chrome/browser/printing/print_view_manager_base.cc
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/chrome/browser/printing/print_view_manager_base.h
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/chrome/browser/printing/print_view_manager_unittest.cc
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/chrome/browser/printing/printer_query.cc
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/chrome/browser/printing/printer_query.h
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/chrome/browser/printing/printing_message_filter.cc
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/chrome/browser/printing/printing_message_filter.h
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/chrome/browser/printing/test_printer_query.cc
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/chrome/browser/printing/test_printer_query.h
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/chrome/browser/ui/webui/print_preview/local_printer_handler_chromeos.cc
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/chrome/browser/ui/webui/print_preview/local_printer_handler_default.cc
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/chrome/browser/ui/webui/print_preview/print_preview_utils.cc
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/chrome/browser/ui/webui/print_preview/print_preview_utils.h
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/printing/print_settings_conversion.cc
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/printing/print_settings_conversion.h
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/printing/printing_context.cc
[modify] https://crrev.com/490ab0c8364fdf4b25829ff56b3df401b988bec8/printing/printing_context.h