Remove shell::Connection* parameter to InterfaceFactory<T>::Create()

ash/touch_hud/mus/touch_hud_application.cc

Index: ash/touch_hud/mus/touch_hud_application.cc
diff --git a/ash/touch_hud/mus/touch_hud_application.cc b/ash/touch_hud/mus/touch_hud_application.cc
index 6339b46386e45ebcddb2fb202407cdbba6e9fd30..b2b8069b016505ce20367c5f44c4738693fcd9c8 100644
--- a/ash/touch_hud/mus/touch_hud_application.cc
+++ b/ash/touch_hud/mus/touch_hud_application.cc
@@ -103,7 +103,7 @@ void TouchHudApplication::Launch(uint32_t what, mash::mojom::LaunchMode how) {
   }
 }
 
-void TouchHudApplication::Create(shell::Connection* connection,
+void TouchHudApplication::Create(const shell::Identity& remote_identity,
                                  mash::mojom::LaunchableRequest request) {
   binding_.Bind(std::move(request));
 }