Revert "HTTPRequest: Replace getInfo() with new parameter 'content_length'"

This reverts commit f3cd973c

src/Network/IHTTPResult.php

@@ -82,6 +82,11 @@ interface IHTTPResult
 	 */
 	public function getBody();
 
+	/**
+	 * @return array
+	 */
+	public function getInfo();
+
 	/**
 	 * @return boolean
 	 */