Feed: move 'WP_Feed_Cache', 'WP_Feed_Cache_Transient', WP_SimplePie_File and WP_SimplePie_Sanitize_KSES into their own files via svn cp. If we move forard with autoloading, class-feed.php is useless. We could even remove it now, and just load these new files in wp-settings.php. That can be decided post-mortem. class-feed.php is an interesting name: there is no Feed or WP_Feed class.

See #37827.


git-svn-id: https://develop.svn.wordpress.org/trunk@38354 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/class-wp-feed-cache.php

@@ -0,0 +1,33 @@
+<?php
+/**
+ * Feed API: WP_Feed_Cache class
+ *
+ * @package WordPress
+ * @subpackage Feed
+ * @since 4.7.0
+ */
+
+/**
+ * Core class used to implement a feed cache.
+ *
+ * @since 2.8.0
+ *
+ * @see SimplePie_Cache
+ */
+class WP_Feed_Cache extends SimplePie_Cache {
+
+	/**
+	 * Creates a new SimplePie_Cache object.
+	 *
+	 * @since 2.8.0
+	 * @access public
+	 *
+	 * @param string $location  URL location (scheme is used to determine handler).
+	 * @param string $filename  Unique identifier for cache object.
+	 * @param string $extension 'spi' or 'spc'.
+	 * @return WP_Feed_Cache_Transient Feed cache handler object that uses transients.
+	 */
+	public function create($location, $filename, $extension) {
+		return new WP_Feed_Cache_Transient($location, $filename, $extension);
+	}
+}