void RenderFrameDevToolsAgentHost::OnPageScaleFactorChanged(
    float page_scale_factor) {
  for (auto* input : protocol::InputHandler::ForAgentHost(this))
    input->OnPageScaleFactorChanged(page_scale_factor);
}

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.