Use events for chat sessions

tests/test_server_events.c

@@ -134,13 +134,13 @@ void handle_message_error_when_recipient_cancel_disables_chat_session(void **sta
 
     prefs_set_boolean(PREF_STATES, TRUE);
     chat_sessions_init();
-    chat_session_new(from, TRUE);
+    chat_session_on_incoming_message(from, TRUE);
 
     expect_any(ui_handle_recipient_not_found, recipient);
     expect_any(ui_handle_recipient_not_found, err_msg);
 
     handle_message_error(from, type, err_msg);
-    gboolean chat_session_supported = chat_session_get_recipient_supports(from);
+    gboolean chat_session_supported = chat_session_on_message_send(from);
 
     assert_false(chat_session_supported);
     chat_sessions_clear();

tests/ui/stub_ui.c

@@ -47,7 +47,7 @@ void ui_update(void) {}
 void ui_close(void) {}
 void ui_redraw(void) {}
 void ui_resize(void) {}
-GSList* ui_get_recipients(void)
+GSList* ui_get_chat_recipients(void)
 {
     return NULL;
 }