Separate password change from time limiter

This CL separates the dependency of the lock screen offline signin
limiter on the LockScreenReauthenticationEnabled policy, where before
it was required for this policy to be set to true in order for
forcing online re authentication on the lock screen to work, although
this policy is meant to be used for the saml password change feature.

Bug: 1204360
Change-Id: I65aaebd01b4f6c6c6bc261aa89e14e36f5a96be8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2878958
Commit-Queue: Aya Nader Elgendy‎ <ayag@chromium.org>
Reviewed-by: Denis Kuznetsov [CET] <antrim@chromium.org>
Cr-Commit-Position: refs/heads/master@{#880440}

chrome/browser/ash/login/signin/offline_signin_limiter.cc

@@ -21,10 +21,9 @@
 #include "chrome/browser/ash/login/login_constants.h"
 #include "chrome/browser/ash/login/login_pref_names.h"
 #include "chrome/browser/ash/login/reauth_stats.h"
-#include "chrome/browser/ash/login/saml/in_session_password_sync_manager.h"
-#include "chrome/browser/ash/login/saml/in_session_password_sync_manager_factory.h"
 #include "chrome/browser/ash/profiles/profile_helper.h"
 #include "chrome/browser/profiles/profile.h"
+#include "chromeos/components/proximity_auth/screenlock_bridge.h"
 #include "components/prefs/pref_service.h"
 #include "components/session_manager/core/session_manager.h"
 #include "components/session_manager/core/session_manager_observer.h"
@@ -381,18 +380,24 @@ void OfflineSigninLimiter::ForceOnlineLockScreenReauth() {
   DCHECK(user);
 
   // Re-auth on lock - enabled only for the primary user.
-  InSessionPasswordSyncManager* password_sync_manager =
-      InSessionPasswordSyncManagerFactory::GetForProfile(profile_);
-  if (password_sync_manager) {
-    password_sync_manager->MaybeForceReauthOnLockScreen(
-        InSessionPasswordSyncManager::ReauthenticationReason::kPolicy);
+  proximity_auth::ScreenlockBridge* screenlock_bridge_ =
+      proximity_auth::ScreenlockBridge::Get();
+  DCHECK(screenlock_bridge_);
+
+  if (screenlock_bridge_->IsLocked()) {
+    // On the lock screen: need to update the UI.
+    screenlock_bridge_->lock_handler()->SetAuthType(
+        user->GetAccountId(), proximity_auth::mojom::AuthType::ONLINE_SIGN_IN,
+        std::u16string());
   }
-  if (user->using_saml())
+
+  if (user->using_saml()) {
     RecordReauthReason(user->GetAccountId(),
                        ReauthReason::SAML_LOCK_SCREEN_REAUTH_POLICY);
-  else
+  } else {
     RecordReauthReason(user->GetAccountId(),
                        ReauthReason::GAIA_LOCK_SCREEN_REAUTH_POLICY);
+  }
   offline_lock_screen_signin_limit_timer_->Stop();
 }