Change signature of OnConnect

mash/webtest/webtest.cc

Index: mash/webtest/webtest.cc
diff --git a/mash/webtest/webtest.cc b/mash/webtest/webtest.cc
index 87f5787c74fbc0ce9c01f35f11790d652feb9a10..57bf47c1fc01a6c354332b52f7942cb3bbd7892d 100644
--- a/mash/webtest/webtest.cc
+++ b/mash/webtest/webtest.cc
@@ -166,8 +166,9 @@ void Webtest::OnStart(const shell::Identity& identity) {
       views::WindowManagerConnection::Create(connector(), identity);
 }
 
-bool Webtest::OnConnect(shell::Connection* connection) {
-  connection->AddInterface<mojom::Launchable>(this);
+bool Webtest::OnConnect(const shell::Identity& remote_identity,
+                        shell::InterfaceRegistry* registry) {
+  registry->AddInterface<mojom::Launchable>(this);
   return true;
 }