Triage nag: This Chrome OS bug has an owner but no component. Please add a component so that this can be tracked by the relevant team.

This wouldn't have much benefit since command and output logging is turned off by default, so that the anonymizer is never called. You'd have to add

  flags_.set_log_commands(true);
  flags_.set_log_command_output(true);

to SambaInterface::ReloadDebugFlags() to turn that on. Since you have to do that, anyway, you can just add

  flags_.set_disable_anonymizer(true);

as well.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/platform2/+/d11dcda88d86b3d6dcea0b130dde82cba3228b93

commit d11dcda88d86b3d6dcea0b130dde82cba3228b93
Author: Lutz Justen <ljusten@chromium.org>
Date: Fri Nov 23 03:07:42 2018

authpolicy: Add unit test to check anonymization

Adds a unit test that checks whether the anonymizer actually does
its job when debug logs are generated.

BUG= chromium:882426 
TEST=cros_workon_make --board=amd64-generic --test authpolicy

Change-Id: Iecc220261786d8f691b993330477aad12010a249
Reviewed-on: https://chromium-review.googlesource.com/1337710
Commit-Ready: Lutz Justen <ljusten@chromium.org>
Tested-by: Lutz Justen <ljusten@chromium.org>
Reviewed-by: Lutz Justen <ljusten@chromium.org>

[modify] https://crrev.com/d11dcda88d86b3d6dcea0b130dde82cba3228b93/authpolicy/authpolicy_unittest.cc
[modify] https://crrev.com/d11dcda88d86b3d6dcea0b130dde82cba3228b93/authpolicy/samba_interface.h

Won't fix by comment #3. To disable the anonymizer and enable debug output, just add
  flags_.set_log_commands(true);
  flags_.set_log_command_output(true);
  flags_.set_disable_anonymizer(true);
to SambaInterface::ReloadDebugFlags().