ozone: Fix flow control regression in ARM swap buffers code path

ui/gl/gl_surface_ozone.cc

Index: ui/gl/gl_surface_ozone.cc
diff --git a/ui/gl/gl_surface_ozone.cc b/ui/gl/gl_surface_ozone.cc
index 231f6c53cdb443be28d8a66b585f188dccb9a40d..459ec7231a1919e0ea9f4fb2a47ba99f727209f4 100644
--- a/ui/gl/gl_surface_ozone.cc
+++ b/ui/gl/gl_surface_ozone.cc
@@ -366,10 +366,12 @@ void GLSurfaceOzoneSurfaceless::SwapBuffersAsync(
 
     base::WorkerPool::PostTaskAndReply(FROM_HERE, fence_wait_task,
                                        fence_retired_callback, false);
-  } else if (ozone_surface_->IsUniversalDisplayLinkDevice()) {
-    glFinish();
+    return;  // Defer frame submission until fence signals.
   }
 
+  if (ozone_surface_->IsUniversalDisplayLinkDevice())
+    glFinish();
+
   frame->ready = true;
   SubmitFrame();
 }