public function up()
{
$this->searchAndReplace('FileTypes::getMimeTypeFromFilename', 'MediaTypes::getMediaTypeFromFilename');
$this->searchAndReplace('FileTypes::getFilenameExtensionFromMimeType', 'MediaTypes::getFilenameExtensionFromMediaType');
$this->searchAndReplace('FileTypes::getMediaTypeFromFilename', 'MediaTypes::getMediaTypeFromFilename');
// Resource has been changed as well.
$this->searchAndReplace('getMimeType()', 'getMediaType()');
}