private function handleFiles(CacheBinderEntry $entry)
 {
     foreach ($entry->getFiles() as $file => $time) {
         if ($this->hasChanged($file, $time)) {
             return false;
         }
     }
     return true;
 }
 private function update(CacheBinderEntry $entry)
 {
     $this->setFiles($entry->getFiles());
     $this->setLastModified($entry->getLastModified());
     $this->addMimeType($entry->getMimeType());
 }