Separate Remote InterfaceProvider again, and add a new client lib type for it.

services/shell/public/cpp/lib/connection_impl.cc

Index: services/shell/public/cpp/lib/connection_impl.cc
diff --git a/services/shell/public/cpp/lib/connection_impl.cc b/services/shell/public/cpp/lib/connection_impl.cc
index acafa89ee5cc66564360f10da54f59777ce94ef9..4df3e473c2ae33e80c25833ac49049482548ea78 100644
--- a/services/shell/public/cpp/lib/connection_impl.cc
+++ b/services/shell/public/cpp/lib/connection_impl.cc
@@ -31,18 +31,16 @@ ConnectionImpl::ConnectionImpl(
       remote_(remote),
       remote_id_(remote_id),
       state_(initial_state),
-      interfaces_(std::move(remote_interfaces),
-                  std::move(local_interfaces),
-                  this),
+      interfaces_(std::move(local_interfaces), this),
+      remote_interfaces_(std::move(remote_interfaces)),
       capability_request_(capability_request),
       allow_all_interfaces_(capability_request.interfaces.size() == 1 &&
                             capability_request.interfaces.count("*") == 1),
       weak_factory_(this) {}
 
 ConnectionImpl::ConnectionImpl()
-    : interfaces_(shell::mojom::InterfaceProviderPtr(),
-                  shell::mojom::InterfaceProviderRequest(),
-                  this),
+    : interfaces_(nullptr, this),
+      remote_interfaces_(nullptr),
       allow_all_interfaces_(true),
       weak_factory_(this) {}
 
@@ -69,7 +67,7 @@ const Identity& ConnectionImpl::GetRemoteIdentity() const {
 }
 
 void ConnectionImpl::SetConnectionLostClosure(const base::Closure& handler) {
-  interfaces_.SetRemoteInterfacesConnectionLostClosure(handler);
+  remote_interfaces_.SetConnectionLostClosure(handler);
 }
 
 shell::mojom::ConnectResult ConnectionImpl::GetResult() const {
@@ -101,6 +99,10 @@ InterfaceRegistry* ConnectionImpl::GetInterfaceRegistry() {
   return &interfaces_;
 }
 
+RemoteInterfaceRegistry* ConnectionImpl::GetRemoteInterfaceRegistry() {
+  return &remote_interfaces_;
+}
+
 base::WeakPtr<Connection> ConnectionImpl::GetWeakPtr() {
   return weak_factory_.GetWeakPtr();
 }