[evolution-data-server] Add missed default implementation for EOAuth2Service::get_authentication_policy()

[Milan Crha <mcrha src gnome org>]

commit 2ae3b83861d35baa702ff2787fe59bbaf9e1464f
Author: Milan Crha <mcrha redhat com>
Date:   Tue Jan 23 15:59:34 2018 +0100

    Add missed default implementation for EOAuth2Service::get_authentication_policy()

 src/libedataserver/e-oauth2-service.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)
---
diff --git a/src/libedataserver/e-oauth2-service.c b/src/libedataserver/e-oauth2-service.c
index 794fef7..7c6812d 100644
--- a/src/libedataserver/e-oauth2-service.c
+++ b/src/libedataserver/e-oauth2-service.c
@@ -168,6 +168,13 @@ eos_default_prepare_authentication_uri_query (EOAuth2Service *service,
        }
 }
 
+static EOAuth2ServiceNavigationPolicy
+eos_default_get_authentication_policy (EOAuth2Service *service,
+                                      const gchar *uri)
+{
+       return E_OAUTH2_SERVICE_NAVIGATION_POLICY_ALLOW;
+}
+
 static void
 eos_default_prepare_get_token_form (EOAuth2Service *service,
                                    const gchar *authorization_code,
@@ -210,6 +217,7 @@ e_oauth2_service_default_init (EOAuth2ServiceInterface *iface)
        iface->guess_can_process = eos_default_guess_can_process;
        iface->get_flags = eos_default_get_flags;
        iface->prepare_authentication_uri_query = eos_default_prepare_authentication_uri_query;
+       iface->get_authentication_policy = eos_default_get_authentication_policy;
        iface->prepare_get_token_form = eos_default_prepare_get_token_form;
        iface->prepare_get_token_message = eos_default_prepare_get_token_message;
        iface->prepare_refresh_token_form = eos_default_prepare_refresh_token_form;