Add a 'get_sample_permalink' filter.

Props SergeyBiryukov, wenthemes, JustinSainton.
Fixes #22338.

Built from https://develop.svn.wordpress.org/trunk@34309


git-svn-id: http://core.svn.wordpress.org/trunk@34273 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/post.php

@@ -1256,7 +1256,18 @@ function get_sample_permalink($id, $title = null, $name = null) {
 	$post->post_name = $original_name;
 	unset($post->filter);
 
-	return $permalink;
+	/**
+	 * Filter the sample permalink.
+	 *
+	 * @since 4.4.0
+	 *
+	 * @param string  $permalink Sample permalink.
+	 * @param int     $post_id   Post ID.
+	 * @param string  $title     Post title.
+	 * @param string  $name      Post name (slug).
+	 * @param WP_Post $post      Post object.
+	 */
+	return apply_filters( 'get_sample_permalink', $permalink, $post->ID, $title, $name, $post );
 }
 
 /**

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.4-alpha-34308';
+$wp_version = '4.4-alpha-34309';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.