Eliminate OnConnect usage

components/leveldb/leveldb_app.cc

Index: components/leveldb/leveldb_app.cc
diff --git a/components/leveldb/leveldb_app.cc b/components/leveldb/leveldb_app.cc
index cb15293d59ea608eba41728f235ce9f8708929c2..93086f77aa5f23a3b6f3c29c9e643a8f6d1303a1 100644
--- a/components/leveldb/leveldb_app.cc
+++ b/components/leveldb/leveldb_app.cc
@@ -5,12 +5,13 @@
 #include "components/leveldb/leveldb_app.h"
 
 #include "components/leveldb/leveldb_service_impl.h"
-#include "services/service_manager/public/cpp/interface_registry.h"
 #include "services/service_manager/public/cpp/service_context.h"
 
 namespace leveldb {
 
-LevelDBApp::LevelDBApp() : file_thread_("LevelDBFile") {}
+LevelDBApp::LevelDBApp() : file_thread_("LevelDBFile") {
+  registry_.AddInterface<mojom::LevelDBService>(this);
+}
 
 LevelDBApp::~LevelDBApp() {}
 
@@ -18,10 +19,12 @@ void LevelDBApp::OnStart() {
   tracing_.Initialize(context()->connector(), context()->identity().name());
 }
 
-bool LevelDBApp::OnConnect(const service_manager::ServiceInfo& remote_info,
-                           service_manager::InterfaceRegistry* registry) {
-  registry->AddInterface<mojom::LevelDBService>(this);
-  return true;
+void LevelDBApp::OnBindInterface(
+    const service_manager::ServiceInfo& source_info,
+    const std::string& interface_name,
+    mojo::ScopedMessagePipeHandle interface_pipe) {
+  registry_.BindInterface(source_info.identity, interface_name,
+                          std::move(interface_pipe));
 }
 
 void LevelDBApp::Create(const service_manager::Identity& remote_identity,