Add a user id parameter to connections

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

Index: mojo/shell/public/cpp/lib/connection_impl.cc
diff --git a/mojo/shell/public/cpp/lib/connection_impl.cc b/mojo/shell/public/cpp/lib/connection_impl.cc
index 47f9b9f51249d38f6b189a024d47bdb5e3f72ae4..7fb65b5c803b4431290672a3e9e7ef2be1aa984d 100644
--- a/mojo/shell/public/cpp/lib/connection_impl.cc
+++ b/mojo/shell/public/cpp/lib/connection_impl.cc
@@ -23,6 +23,7 @@ ConnectionImpl::ConnectionImpl(
     const std::string& connection_url,
     const std::string& remote_url,
     uint32_t remote_id,
+    uint32_t remote_user_id,
     shell::mojom::InterfaceProviderPtr remote_interfaces,
     shell::mojom::InterfaceProviderRequest local_interfaces,
     const std::set<std::string>& allowed_interfaces)
@@ -30,6 +31,7 @@ ConnectionImpl::ConnectionImpl(
       remote_url_(remote_url),
       remote_id_(remote_id),
       remote_ids_valid_(false),
+      remote_user_id_(remote_user_id),
       local_registry_(std::move(local_interfaces), this),
       remote_interfaces_(std::move(remote_interfaces)),
       allowed_interfaces_(allowed_interfaces),
@@ -62,6 +64,10 @@ const std::string& ConnectionImpl::GetRemoteApplicationURL() {
   return remote_url_;
 }
 
+uint32_t ConnectionImpl::GetRemoteUserID() const {
+  return remote_user_id_;
+}
+
 void ConnectionImpl::SetRemoteInterfaceProviderConnectionErrorHandler(
     const Closure& handler) {
   remote_interfaces_.set_connection_error_handler(handler);