The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/3c6d07134f1a93f57b6c0d191251deb3d9d9e887

commit 3c6d07134f1a93f57b6c0d191251deb3d9d9e887
Author: rsorokin <rsorokin@chromium.org>
Date: Thu Feb 16 09:56:53 2017

Chromad: Use DM server reply to determine enrollment type

Now user have to press custom shortuct to enroll into Active Directory
management. This CL use DM server to determine that.
It also show Active Directory domain join UI just before locking the
device. So user has possibility to switch between internet and intranet.

BUG= 668491 
TEST=manual

Review-Url: https://codereview.chromium.org/2677563005
Cr-Commit-Position: refs/heads/master@{#450919}

[modify] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/chromeos/login/enrollment/enrollment_screen.cc
[modify] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/chromeos/login/enrollment/enrollment_screen.h
[modify] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/chromeos/login/enrollment/enrollment_screen_actor.h
[modify] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/chromeos/login/enrollment/enterprise_enrollment_helper.cc
[modify] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/chromeos/login/enrollment/enterprise_enrollment_helper.h
[modify] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/chromeos/login/enrollment/enterprise_enrollment_helper_impl.cc
[modify] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/chromeos/login/enrollment/enterprise_enrollment_helper_impl.h
[modify] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/chromeos/login/screens/host_pairing_screen.cc
[modify] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/chromeos/login/screens/host_pairing_screen.h
[add] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/chromeos/policy/active_directory_join_delegate.h
[modify] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/chromeos/policy/device_cloud_policy_initializer.cc
[modify] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/chromeos/policy/device_cloud_policy_initializer.h
[modify] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/chromeos/policy/device_cloud_policy_manager_chromeos_unittest.cc
[modify] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/chromeos/policy/enrollment_handler_chromeos.cc
[modify] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/chromeos/policy/enrollment_handler_chromeos.h
[modify] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/chromeos/policy/fake_device_cloud_policy_initializer.cc
[modify] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/chromeos/policy/fake_device_cloud_policy_initializer.h
[modify] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/ui/webui/chromeos/login/enrollment_screen_handler.cc
[modify] https://crrev.com/3c6d07134f1a93f57b6c0d191251deb3d9d9e887/chrome/browser/ui/webui/chromeos/login/signin_screen_handler.cc

bulk Verify of older or not-user-facing Chromad bugs