diff -r 000000000000 -r d970ebf37754 wp/wp-includes/SimplePie/Registry.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wp/wp-includes/SimplePie/Registry.php	Wed Nov 06 03:21:17 2013 +0000
@@ -0,0 +1,225 @@
+<?php
+/**
+ * SimplePie
+ *
+ * A PHP-Based RSS and Atom Feed Framework.
+ * Takes the hard work out of managing a complete RSS/Atom solution.
+ *
+ * Copyright (c) 2004-2012, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification, are
+ * permitted provided that the following conditions are met:
+ *
+ * 	* Redistributions of source code must retain the above copyright notice, this list of
+ * 	  conditions and the following disclaimer.
+ *
+ * 	* Redistributions in binary form must reproduce the above copyright notice, this list
+ * 	  of conditions and the following disclaimer in the documentation and/or other materials
+ * 	  provided with the distribution.
+ *
+ * 	* Neither the name of the SimplePie Team nor the names of its contributors may be used
+ * 	  to endorse or promote products derived from this software without specific prior
+ * 	  written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
+ * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ * @package SimplePie
+ * @version 1.3.1
+ * @copyright 2004-2012 Ryan Parman, Geoffrey Sneddon, Ryan McCue
+ * @author Ryan Parman
+ * @author Geoffrey Sneddon
+ * @author Ryan McCue
+ * @link http://simplepie.org/ SimplePie
+ * @license http://www.opensource.org/licenses/bsd-license.php BSD License
+ */
+
+/**
+ * Handles creating objects and calling methods
+ *
+ * Access this via {@see SimplePie::get_registry()}
+ *
+ * @package SimplePie
+ */
+class SimplePie_Registry
+{
+	/**
+	 * Default class mapping
+	 *
+	 * Overriding classes *must* subclass these.
+	 *
+	 * @var array
+	 */
+	protected $default = array(
+		'Cache' => 'SimplePie_Cache',
+		'Locator' => 'SimplePie_Locator',
+		'Parser' => 'SimplePie_Parser',
+		'File' => 'SimplePie_File',
+		'Sanitize' => 'SimplePie_Sanitize',
+		'Item' => 'SimplePie_Item',
+		'Author' => 'SimplePie_Author',
+		'Category' => 'SimplePie_Category',
+		'Enclosure' => 'SimplePie_Enclosure',
+		'Caption' => 'SimplePie_Caption',
+		'Copyright' => 'SimplePie_Copyright',
+		'Credit' => 'SimplePie_Credit',
+		'Rating' => 'SimplePie_Rating',
+		'Restriction' => 'SimplePie_Restriction',
+		'Content_Type_Sniffer' => 'SimplePie_Content_Type_Sniffer',
+		'Source' => 'SimplePie_Source',
+		'Misc' => 'SimplePie_Misc',
+		'XML_Declaration_Parser' => 'SimplePie_XML_Declaration_Parser',
+		'Parse_Date' => 'SimplePie_Parse_Date',
+	);
+
+	/**
+	 * Class mapping
+	 *
+	 * @see register()
+	 * @var array
+	 */
+	protected $classes = array();
+
+	/**
+	 * Legacy classes
+	 *
+	 * @see register()
+	 * @var array
+	 */
+	protected $legacy = array();
+
+	/**
+	 * Constructor
+	 *
+	 * No-op
+	 */
+	public function __construct() { }
+
+	/**
+	 * Register a class
+	 *
+	 * @param string $type See {@see $default} for names
+	 * @param string $class Class name, must subclass the corresponding default
+	 * @param bool $legacy Whether to enable legacy support for this class
+	 * @return bool Successfulness
+	 */
+	public function register($type, $class, $legacy = false)
+	{
+		if (!is_subclass_of($class, $this->default[$type]))
+		{
+			return false;
+		}
+
+		$this->classes[$type] = $class;
+
+		if ($legacy)
+		{
+			$this->legacy[] = $class;
+		}
+
+		return true;
+	}
+
+	/**
+	 * Get the class registered for a type
+	 *
+	 * Where possible, use {@see create()} or {@see call()} instead
+	 *
+	 * @param string $type
+	 * @return string|null
+	 */
+	public function get_class($type)
+	{
+		if (!empty($this->classes[$type]))
+		{
+			return $this->classes[$type];
+		}
+		if (!empty($this->default[$type]))
+		{
+			return $this->default[$type];
+		}
+
+		return null;
+	}
+
+	/**
+	 * Create a new instance of a given type
+	 *
+	 * @param string $type
+	 * @param array $parameters Parameters to pass to the constructor
+	 * @return object Instance of class
+	 */
+	public function &create($type, $parameters = array())
+	{
+		$class = $this->get_class($type);
+
+		if (in_array($class, $this->legacy))
+		{
+			switch ($type)
+			{
+				case 'locator':
+					// Legacy: file, timeout, useragent, file_class, max_checked_feeds, content_type_sniffer_class
+					// Specified: file, timeout, useragent, max_checked_feeds
+					$replacement = array($this->get_class('file'), $parameters[3], $this->get_class('content_type_sniffer'));
+					array_splice($parameters, 3, 1, $replacement);
+					break;
+			}
+		}
+
+		if (!method_exists($class, '__construct'))
+		{
+			$instance = new $class;
+		}
+		else
+		{
+			$reflector = new ReflectionClass($class);
+			$instance = $reflector->newInstanceArgs($parameters);
+		}
+
+		if (method_exists($instance, 'set_registry'))
+		{
+			$instance->set_registry($this);
+		}
+		return $instance;
+	}
+
+	/**
+	 * Call a static method for a type
+	 *
+	 * @param string $type
+	 * @param string $method
+	 * @param array $parameters
+	 * @return mixed
+	 */
+	public function &call($type, $method, $parameters = array())
+	{
+		$class = $this->get_class($type);
+
+		if (in_array($class, $this->legacy))
+		{
+			switch ($type)
+			{
+				case 'Cache':
+					// For backwards compatibility with old non-static
+					// Cache::create() methods
+					if ($method === 'get_handler')
+					{
+						$result = @call_user_func_array(array($class, 'create'), $parameters);
+						return $result;
+					}
+					break;
+			}
+		}
+
+		$result = call_user_func_array(array($class, $method), $parameters);
+		return $result;
+	}
+}
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