Move remaining files from chrome/browser/chromeos/login/ [4/5]

Move login/s* to chrome/browser/ash/.

This CL is part of the Chrome OS source code directory migration:
https://docs.google.com/document/d/1g-98HpzA8XcoGBWUv1gQNr4rbnD5yfvbtYZyPDDbkaE.

Bug: 1164001
Change-Id: I9123c1c343614127c413240e9dabe9d53161c0cc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2721766
Commit-Queue: Henrique Ferreiro <[email protected]>
Owners-Override: Henrique Ferreiro <[email protected]>
Owners-Override: Hidehiko Abe <[email protected]>
Reviewed-by: Hidehiko Abe <[email protected]>
Cr-Commit-Position: refs/heads/master@{#860447}
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index 1003e40b..eca54d0 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -285,8 +285,10 @@
 #include "chrome/browser/ash/login/saml/saml_profile_prefs.h"
 #include "chrome/browser/ash/login/screens/enable_adb_sideloading_screen.h"
 #include "chrome/browser/ash/login/screens/reset_screen.h"
+#include "chrome/browser/ash/login/security_token_session_controller.h"
 #include "chrome/browser/ash/login/session/user_session_manager.h"
 #include "chrome/browser/ash/login/signin/signin_error_notifier_ash.h"
+#include "chrome/browser/ash/login/startup_utils.h"
 #include "chrome/browser/ash/login/users/avatar/user_image_manager.h"
 #include "chrome/browser/ash/login/users/avatar/user_image_sync_observer.h"
 #include "chrome/browser/ash/login/users/chrome_user_manager_impl.h"
@@ -301,8 +303,6 @@
 #include "chrome/browser/chromeos/full_restore/full_restore_prefs.h"
 #include "chrome/browser/chromeos/guest_os/guest_os_pref_names.h"
 #include "chrome/browser/chromeos/lock_screen_apps/state_controller.h"
-#include "chrome/browser/chromeos/login/security_token_session_controller.h"
-#include "chrome/browser/chromeos/login/startup_utils.h"
 #include "chrome/browser/chromeos/net/network_throttling_observer.h"
 #include "chrome/browser/chromeos/plugin_vm/plugin_vm_pref_names.h"
 #include "chrome/browser/chromeos/policy/adb_sideloading_allowance_mode_policy_handler.h"