void Browser::ProcessPendingUIUpdates() {
#ifndef NDEBUG
  for (UpdateMap::const_iterator i = scheduled_updates_.begin();
       i != scheduled_updates_.end(); ++i) {
    bool found = false;
    for (int tab = 0; tab < tab_strip_model_->count(); tab++) {
      if (tab_strip_model_->GetWebContentsAt(tab) == i->first) {
        found = true;
        break;
      }
    }
    DCHECK(found);
  }
#endif

  chrome_updater_factory_.InvalidateWeakPtrs();

  for (UpdateMap::const_iterator i = scheduled_updates_.begin();
       i != scheduled_updates_.end(); ++i) {
    const WebContents* contents = i->first;
    unsigned flags = i->second;

    if (contents == tab_strip_model_->GetActiveWebContents()) {

      if (flags & content::INVALIDATE_TYPE_LOAD && GetStatusBubble()) {
        GetStatusBubble()->SetStatus(CoreTabHelper::FromWebContents(
            tab_strip_model_->GetActiveWebContents())->GetStatusText());
      }

      if (flags & (content::INVALIDATE_TYPE_TAB |
                   content::INVALIDATE_TYPE_TITLE)) {
        window_->UpdateTitleBar();
      }
    }

    if (flags &
        (content::INVALIDATE_TYPE_TAB | content::INVALIDATE_TYPE_TITLE)) {
      tab_strip_model_->UpdateWebContentsStateAt(
          tab_strip_model_->GetIndexOfWebContents(contents),
          TabChangeType::kAll);
    }

    if (flags & content::INVALIDATE_TYPE_TAB)
      UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_STATE);

  }

  scheduled_updates_.clear();
}

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.