Synchronized overwritten core_renderer function favicon() with core changes.

CHANGES.md

@@ -6,6 +6,7 @@ Changes
 
 ### Unreleased
 
+* 2017-12-05 - Synchronized overwritten core_renderer function favicon() with core changes.
 * 2017-12-05 - Improved design of in course settings slightly.
 * 2018-01-16 - Prepare compatibility for Moodle 3.3, no functionality change.
 

classes/output/core_renderer.php

@@ -121,11 +121,11 @@ class core_renderer extends \theme_boost\output\core_renderer {
         if (!empty($PAGE->theme->settings->favicon)) {
             return $PAGE->theme->setting_file_url('favicon', 'favicon');
         } else {
-            return $this->pix_url('favicon', 'theme');
+            return $this->image_url('favicon', 'theme');
         }
         // MODIFICATION END.
         /* ORIGINAL START.
-        return $this->pix_url('favicon', 'theme');
+        return $this->image_url('favicon', 'theme');
         ORIGINAL END. */
     }