QA: Keep the row values 'Default' when they are default

* Also clearing up a warning.

lib/html_filter.php

@@ -459,6 +459,7 @@ private function create_filter() {
 					if (!isset($field_array['value']) &&
 						$field_array['method'] != 'validate' &&
 						$field_array['method'] != 'submit' &&
+						$field_array['method'] != 'content' &&
 						$field_array['method'] != 'button' &&
 						$field_array['method'] != 'timespan') {
 						cacti_log("WARNING: The Filter Class value field $field_name is missing");
@@ -931,10 +932,6 @@ private function sanitize_filter_variables() {
 			set_request_var('page', 1);
 		}
 
-		if (!isset_request_var('rows')) {
-			set_request_var('rows', read_config_option('num_rows_table'));
-		}
-
 		if (isset($this->filter_array['sort'])) {
 			$filters['sort_column']['filter']     = FILTER_CALLBACK;
 			$filters['sort_column']['options']    = array('options' => 'sanitize_search_string');