From f84f9967202e220887eab998a6f724b816e60959 Mon Sep 17 00:00:00 2001
From: Francis Tsui <ftsui@google.com>
Date: Thu, 2 Jul 2026 09:45:13 -0700
Subject: [PATCH] Update SyncConfigPrefs with last sync time on backup
 complete.

PiperOrigin-RevId: 941738732
---
 sharing/nearby_sharing_service_impl.cc | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/sharing/nearby_sharing_service_impl.cc b/sharing/nearby_sharing_service_impl.cc
index c2ce93d9..f6e1d32e 100644
--- a/sharing/nearby_sharing_service_impl.cc
+++ b/sharing/nearby_sharing_service_impl.cc
@@ -2352,6 +2352,15 @@ void NearbySharingServiceImpl::OnIncomingTransferUpdate(
         LOG(WARNING) << __func__ << ": Unknown file paths are not empty.";
       }
     }
+    // If backup session, update last backup time in preference.
+    if (session.session_usage() == ShareSessionUsage::kFileSync) {
+      if (session.certificate()) {
+        sync_manager_.SetSyncConfigBackupTime(
+            session.certificate()->binding_id(),
+            metadata.status() == TransferMetadata::Status::kComplete,
+            context_->GetClock()->Now());
+      }
+    }
   } else if (metadata.status() ==
              TransferMetadata::Status::kAwaitingLocalConfirmation) {
     OnTransferStarted(/*is_incoming=*/true);