Eliminate OnConnect usage

mash/package/mash_packaged_service.cc

Index: mash/package/mash_packaged_service.cc
diff --git a/mash/package/mash_packaged_service.cc b/mash/package/mash_packaged_service.cc
index ea219b2e5aef6e963acaa1f8e89401adae5ca056..b5f45e2df39a47579a9de15170152c30251a2f0d 100644
--- a/mash/package/mash_packaged_service.cc
+++ b/mash/package/mash_packaged_service.cc
@@ -17,7 +17,6 @@
 #include "mash/session/session.h"
 #include "mash/task_viewer/public/interfaces/constants.mojom.h"
 #include "mash/task_viewer/task_viewer.h"
-#include "services/service_manager/public/cpp/interface_registry.h"
 #include "services/service_manager/public/cpp/service_context.h"
 #include "services/ui/ime/test_ime_driver/test_ime_application.h"
 #include "services/ui/public/interfaces/constants.mojom.h"
@@ -36,15 +35,18 @@
 
 namespace mash {
 
-MashPackagedService::MashPackagedService() {}
+MashPackagedService::MashPackagedService() {
+  registry_.AddInterface<ServiceFactory>(this);
+}
 
 MashPackagedService::~MashPackagedService() {}
 
-bool MashPackagedService::OnConnect(
-    const service_manager::ServiceInfo& remote_info,
-    service_manager::InterfaceRegistry* registry) {
-  registry->AddInterface<ServiceFactory>(this);
-  return true;
+void MashPackagedService::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 MashPackagedService::Create(