1 files changed, 11 insertions, 9 deletions
diff --git a/src/core/ext/filters/client_channel/lb_policy/grpclb/client_load_reporting_filter.cc b/src/core/ext/filters/client_channel/lb_policy/grpclb/client_load_reporting_filter.cc
index 18ef1f6ff5..cc259bcdbf 100644
--- a/src/core/ext/filters/client_channel/lb_policy/grpclb/client_load_reporting_filter.cc
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/client_load_reporting_filter.cc
@@ -35,9 +35,10 @@ static grpc_error* init_channel_elem(grpc_channel_element* elem,
 static void destroy_channel_elem(grpc_channel_element* elem) {}
 
 namespace {
+
 struct call_data {
   // Stats object to update.
-  grpc_grpclb_client_stats* client_stats;
+  grpc_core::RefCountedPtr<grpc_core::GrpcLbClientStats> client_stats;
   // State for intercepting send_initial_metadata.
   grpc_closure on_complete_for_send;
   grpc_closure* original_on_complete_for_send;
@@ -47,6 +48,7 @@ struct call_data {
   grpc_closure* original_recv_initial_metadata_ready;
   bool recv_initial_metadata_succeeded;
 };
+
 }  // namespace
 
 static void on_complete_for_send(void* arg, grpc_error* error) {
@@ -72,11 +74,11 @@ static grpc_error* init_call_elem(grpc_call_element* elem,
   // Get stats object from context and take a ref.
   GPR_ASSERT(args->context != nullptr);
   if (args->context[GRPC_GRPCLB_CLIENT_STATS].value != nullptr) {
-    calld->client_stats =
-        grpc_grpclb_client_stats_ref(static_cast<grpc_grpclb_client_stats*>(
-            args->context[GRPC_GRPCLB_CLIENT_STATS].value));
+    calld->client_stats = static_cast<grpc_core::GrpcLbClientStats*>(
+                              args->context[GRPC_GRPCLB_CLIENT_STATS].value)
+                              ->Ref();
     // Record call started.
-    grpc_grpclb_client_stats_add_call_started(calld->client_stats);
+    calld->client_stats->AddCallStarted();
   }
   return GRPC_ERROR_NONE;
 }
@@ -88,12 +90,12 @@ static void destroy_call_elem(grpc_call_element* elem,
   if (calld->client_stats != nullptr) {
     // Record call finished, optionally setting client_failed_to_send and
     // received.
-    grpc_grpclb_client_stats_add_call_finished(
+    calld->client_stats->AddCallFinished(
         !calld->send_initial_metadata_succeeded /* client_failed_to_send */,
-        calld->recv_initial_metadata_succeeded /* known_received */,
-        calld->client_stats);
+        calld->recv_initial_metadata_succeeded /* known_received */);
     // All done, so unref the stats object.
-    grpc_grpclb_client_stats_unref(calld->client_stats);
+    // TODO(roth): Eliminate this once filter stack is converted to C++.
+    calld->client_stats.reset();
   }
 }