bool RenderFrameHostManager::IsRendererTransferNeededForNavigation(
    RenderFrameHostImpl* rfh,
    const GURL& dest_url) {
  if (!rfh->GetSiteInstance()->HasSite())
    return rfh->GetSiteInstance()->HasWrongProcessForURL(dest_url);

  if (rfh->GetSiteInstance()->GetSiteURL().SchemeIs(kGuestScheme))
    return false;

  BrowserContext* context = rfh->GetSiteInstance()->GetBrowserContext();
  if (IsCurrentlySameSite(rfh, dest_url)) {
    return false;
  }

  if (rfh->GetSiteInstance()->RequiresDedicatedProcess() ||
      SiteInstanceImpl::DoesSiteRequireDedicatedProcess(context,
                                                        dest_url)) {
    return true;
  }

  if (SiteIsolationPolicy::IsTopDocumentIsolationEnabled() &&
      (!frame_tree_node_->IsMainFrame() ||
       rfh->GetSiteInstance()->IsDefaultSubframeSiteInstance())) {
    return true;
  }

  return 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.