wayland: implement fifo-v1

src/backends/metal/present.rs

@@ -168,7 +168,7 @@ impl MetalConnector {
         self.latch_cursor(&node)?;
         let cursor_programming = self.compute_cursor_programming();
         let latched = self.latch(&node);
-        node.latched();
+        node.latched(self.try_async_flip());
 
         if cursor_programming.is_none() && latched.is_none() {
             return Ok(());