void NetworkActionPredictor::CreateCaches(
    std::vector<NetworkActionPredictorDatabase::Row>* rows) {
  CHECK(content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
  DCHECK(!initialized_);
  DCHECK(db_cache_.empty());
  DCHECK(db_id_cache_.empty());

  for (std::vector<NetworkActionPredictorDatabase::Row>::const_iterator it =
       rows->begin(); it != rows->end(); ++it) {
    const DBCacheKey key = { it->user_text, it->url };
    const DBCacheValue value = { it->number_of_hits, it->number_of_misses };
    db_cache_[key] = value;
    db_id_cache_[key] = it->id;
  }

  HistoryService* history_service =
      profile_->GetHistoryService(Profile::EXPLICIT_ACCESS);
  if (!TryDeleteOldEntries(history_service)) {
    notification_registrar_.Add(this, chrome::NOTIFICATION_HISTORY_LOADED,
                                content::Source<Profile>(profile_));
  }
}

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.