Add a instance groups to Connect(), and introduce an Identity struct.

mojo/services/package_manager/package_manager.cc

Index: mojo/services/package_manager/package_manager.cc
diff --git a/mojo/services/package_manager/package_manager.cc b/mojo/services/package_manager/package_manager.cc
index 00d59c01cb3855db965ae0c0c802c72df28622c2..858cf9d5e4bb086608e38bf55ce63bbb652b4b6c 100644
--- a/mojo/services/package_manager/package_manager.cc
+++ b/mojo/services/package_manager/package_manager.cc
@@ -119,7 +119,7 @@ PackageManager::~PackageManager() {}
 bool PackageManager::AcceptConnection(mojo::Connection* connection) {
   connection->AddInterface<mojom::Catalog>(this);
   connection->AddInterface<mojom::Resolver>(this);
-  if (connection->GetRemoteApplicationName() == "mojo:shell")
+  if (connection->GetRemoteIdentity().name() == "mojo:shell")
     connection->AddInterface<mojom::ShellResolver>(this);
   return true;
 }