Adds <label>s to current page selector and bulk actions <select> field so that screen readers have an explicit label.

Props joedolson.
Fixes #28867.

Built from https://develop.svn.wordpress.org/trunk@29294


git-svn-id: http://core.svn.wordpress.org/trunk@29076 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/class-wp-plugins-list-table.php

@@ -298,13 +298,13 @@ class WP_Plugins_List_Table extends WP_List_Table {
 		return $actions;
 	}
 
-	public function bulk_actions() {
+	public function bulk_actions( $which ) {
 		global $status;
 
 		if ( in_array( $status, array( 'mustuse', 'dropins' ) ) )
 			return;
 
-		parent::bulk_actions();
+		parent::bulk_actions( $which );
 	}
 
 	protected function extra_tablenav( $which ) {