[epiphany] form-auth: Fix leak of username

[Gabriel Ivașcu <gabrielivascu src gnome org>]

commit 3540bd5291efb7f38f5e28dc8d50d4fadebc664e
Author: Gabriel Ivascu <gabrielivascu gnome org>
Date:   Wed Aug 30 18:14:39 2017 +0300

    form-auth: Fix leak of username

 embed/web-extension/ephy-embed-form-auth.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/embed/web-extension/ephy-embed-form-auth.c b/embed/web-extension/ephy-embed-form-auth.c
index 8e5b8b4..734ce86 100644
--- a/embed/web-extension/ephy-embed-form-auth.c
+++ b/embed/web-extension/ephy-embed-form-auth.c
@@ -42,6 +42,7 @@ ephy_embed_form_auth_finalize (GObject *object)
 
   if (form_auth->uri)
     soup_uri_free (form_auth->uri);
+  g_free (form_auth->username);
   g_free (form_auth->target_origin);
   g_clear_object (&form_auth->username_node);
   g_clear_object (&form_auth->password_node);