[USS] Show USS counters in about:sync page

chrome/browser/ui/webui/sync_internals_message_handler.cc

Index: chrome/browser/ui/webui/sync_internals_message_handler.cc
diff --git a/chrome/browser/ui/webui/sync_internals_message_handler.cc b/chrome/browser/ui/webui/sync_internals_message_handler.cc
index b7d6cbc7cc96c6fcf4ee063f1d0cd5d9cef04914..022245f177608e455d0f1146a5ccce8c849ce5ea 100644
--- a/chrome/browser/ui/webui/sync_internals_message_handler.cc
+++ b/chrome/browser/ui/webui/sync_internals_message_handler.cc
@@ -202,9 +202,9 @@ void SyncInternalsMessageHandler::OnUpdateCountersUpdated(
 
 void SyncInternalsMessageHandler::OnStatusCountersUpdated(
     syncer::ModelType type,
-    const syncer::StatusCounters& counters) {
+    std::unique_ptr<syncer::StatusCounters> counters) {
   EmitCounterUpdate(type, sync_driver::sync_ui_util::kStatus,
-                    counters.ToValue());
+                    counters->ToValue());
 }
 
 void SyncInternalsMessageHandler::EmitCounterUpdate(