    SynchronizeVisualPropertiesMessageFilter()
    : content::BrowserMessageFilter(kMessageClassesToFilter,
                                    arraysize(kMessageClassesToFilter)),
      screen_space_rect_run_loop_(std::make_unique<base::RunLoop>()),
      screen_space_rect_received_(false) {}

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.