ChromeOS: This CL moves chromeos/login/user_names* to user_mananger.

chromeos/login/auth/cryptohome_authenticator.cc

Index: chromeos/login/auth/cryptohome_authenticator.cc
diff --git a/chromeos/login/auth/cryptohome_authenticator.cc b/chromeos/login/auth/cryptohome_authenticator.cc
index 6b29183a88e9718f5f3b3a71d5ccefffd6508f5c..6b0a8b9d16aaf8f9bb1034939a63b48c51646d80 100644
--- a/chromeos/login/auth/cryptohome_authenticator.cc
+++ b/chromeos/login/auth/cryptohome_authenticator.cc
@@ -25,11 +25,11 @@
 #include "chromeos/login/auth/key.h"
 #include "chromeos/login/auth/user_context.h"
 #include "chromeos/login/login_state.h"
-#include "chromeos/login/user_names.h"
 #include "chromeos/login_event_recorder.h"
 #include "components/device_event_log/device_event_log.h"
 #include "components/signin/core/account_id/account_id.h"
 #include "components/user_manager/known_user.h"
+#include "components/user_manager/user_names.h"
 #include "components/user_manager/user_type.h"
 #include "third_party/cros_system_api/dbus/service_constants.h"
 
@@ -556,7 +556,8 @@ void CryptohomeAuthenticator::LoginAsSupervisedUser(
 void CryptohomeAuthenticator::LoginOffTheRecord() {
   DCHECK(task_runner_->RunsTasksOnCurrentThread());
   current_state_.reset(new AuthAttemptState(
-      UserContext(user_manager::USER_TYPE_GUEST, login::GuestAccountId()),
+      UserContext(user_manager::USER_TYPE_GUEST,
+                  user_manager::chromeos::GuestAccountId()),
       false,    // unlock
       false,    // online_complete
       false));  // user_is_new
@@ -588,8 +589,9 @@ void CryptohomeAuthenticator::LoginAsKioskAccount(
     bool use_guest_mount) {
   DCHECK(task_runner_->RunsTasksOnCurrentThread());
 
-  const AccountId& account_id =
-      use_guest_mount ? login::GuestAccountId() : app_account_id;
+  const AccountId& account_id = use_guest_mount
+                                    ? user_manager::chromeos::GuestAccountId()
+                                    : app_account_id;
   current_state_.reset(new AuthAttemptState(
       UserContext(user_manager::USER_TYPE_KIOSK_APP, account_id),
       false,    // unlock