void PDFiumEngine::SetEditMode(bool edit_mode) {
  if (!kIsEditModeTracked || edit_mode_ == edit_mode)
    return;

  edit_mode_ = edit_mode;
  client_->IsEditModeChanged(edit_mode_);
}

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.