Reland "Remote powerwash on Chromad via policy"

This is a reland of 6ff1599ed15bbd89a0b58ea9590fcf0eaa8e6bd1

Original change's description:
> Remote powerwash on Chromad via policy
>
> Implement remote powerwash on Chromad, using the recently added
> ChromadToCloudMigrationEnabled policy. The powerwash will be used to
> start the migration of AD managed devices into cloud management. Besides
> having the new policy enabled, the device needs to be on the login
> screen and the enrollment ID must have already been uploaded to
> DMServer.
>
> Bug: 1209246
> Change-Id: I6a67b8a8a43c28bc5f03f27e96d0415f69b6bc83
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3141873
> Reviewed-by: Maksim Ivanov <[email protected]>
> Reviewed-by: Roman Sorokin <[email protected]>
> Reviewed-by: Colin Blundell <[email protected]>
> Commit-Queue: Felipe Andrade <[email protected]>
> Cr-Commit-Position: refs/heads/main@{#959123}

Bug: 1209246
Change-Id: Iee9a7c8ee6e7c7877a35668cd15732af101e19eb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3389825
Reviewed-by: Maksim Ivanov <[email protected]>
Reviewed-by: Roman Sorokin <[email protected]>
Reviewed-by: Avi Drissman <[email protected]>
Commit-Queue: Felipe Andrade <[email protected]>
Cr-Commit-Position: refs/heads/main@{#960517}
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index 5c340b68..e30e8d33 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -333,6 +333,7 @@
 #include "chrome/browser/ash/login/users/multi_profile_user_controller.h"
 #include "chrome/browser/ash/net/network_throttling_observer.h"
 #include "chrome/browser/ash/plugin_vm/plugin_vm_pref_names.h"
+#include "chrome/browser/ash/policy/active_directory/active_directory_migration_manager.h"
 #include "chrome/browser/ash/policy/core/browser_policy_connector_ash.h"
 #include "chrome/browser/ash/policy/core/device_cloud_policy_manager_ash.h"
 #include "chrome/browser/ash/policy/core/dm_token_storage.h"
@@ -1107,6 +1108,7 @@
   extensions::login_api::RegisterLocalStatePrefs(registry);
   ::onc::RegisterPrefs(registry);
   policy::ActiveDirectoryDeviceStateUploader::RegisterLocalStatePrefs(registry);
+  policy::ActiveDirectoryMigrationManager::RegisterLocalStatePrefs(registry);
   policy::AdbSideloadingAllowanceModePolicyHandler::RegisterPrefs(registry);
   policy::AutoEnrollmentClientImpl::RegisterPrefs(registry);
   policy::BrowserPolicyConnectorAsh::RegisterPrefs(registry);