void OutOfProcessInstance::DidOpenPreview(int32_t result) {
  if (result == PP_OK) {
    preview_engine_.reset(PDFEngine::Create(new PreviewModeClient(this)));
    preview_engine_->HandleDocumentLoad(embed_preview_loader_);
  } else {
    NOTREACHED();
  }
}

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.