Upgarded to 4.17.4

includes/builder/feature/background-masks/BackgroundPatternStyleFactory.php

@@ -0,0 +1,45 @@
+<?php
+/**
+ * Background Pattern Config
+ *
+ * @package Divi
+ * @sub-package Builder
+ * @since 4.15.0
+ */
+
+if ( ! defined( 'ABSPATH' ) ) {
+	die( 'Direct access forbidden.' );
+}
+
+/**
+ * Class ET_Builder_Background_Pattern_Style_Factory.
+ */
+class ET_Builder_Background_Pattern_Style_Factory {
+	/**
+	 * Class instance object
+	 *
+	 * @var array Holds all Pattern Style instance.
+	 */
+	private static $_instance = array();
+
+	/**
+	 * Get instance of the Class
+	 *
+	 * @param string $name Pattern Style Name.
+	 *
+	 * @return ET_Builder_Background_Pattern_Style_Base
+	 */
+	public static function get( $name ) {
+		$name = sanitize_file_name( $name );
+
+		if ( ! isset( self::$_instance[ $name ] ) ) {
+			// Look at feature/background-masks/pattern directory.
+			$file     = ET_BUILDER_DIR . "feature/background-masks/pattern/$name.php";
+			$instance = file_exists( $file ) ? require_once $file : null;
+
+			self::$_instance[ $name ] = $instance instanceof ET_Builder_Background_Pattern_Style_Base ? $instance : null;
+		}
+
+		return self::$_instance[ $name ];
+	}
+}