[gtksourceviewmm/gtkmm4] gtkmm4: Adapt to FileChooserAction as Action.

[Murray Cumming <murrayc src gnome org>]

commit 72a878771953997a10d72ed2114df108ac6c3923
Author: Murray Cumming <murrayc murrayc com>
Date:   Fri Apr 28 19:32:19 2017 +0200

    gtkmm4: Adapt to FileChooserAction as Action.

 tests/search/main.cc |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/tests/search/main.cc b/tests/search/main.cc
index 2a25c5f..b56799c 100644
--- a/tests/search/main.cc
+++ b/tests/search/main.cc
@@ -164,7 +164,7 @@ public:
     {
         try {
             FileChooserDialog fc_dialog ("open a file",
-                                         FileChooserAction::OPEN);
+                                         FileChooser::Action::OPEN);
             fc_dialog.set_select_multiple (false) ;
             fc_dialog.add_button ("Cancel", ResponseType::CANCEL) ;
             fc_dialog.add_button ("OK", ResponseType::ACCEPT) ;