MDL-42739 theme_anomaly: Updated renderers.php to fix dock not workin…

…g in Anomaly theme.

theme/anomaly/renderers.php

@@ -18,14 +18,25 @@ function block(block_contents $bc, $region) {
         if (empty($bc->blockinstanceid) || !strip_tags($bc->title)) {
             $bc->collapsible = block_contents::NOT_HIDEABLE;
         }
+        if (!empty($bc->blockinstanceid)) {
+            $bc->attributes['data-instanceid'] = $bc->blockinstanceid;
+        }
+        $skiptitle = strip_tags($bc->title);
+        if ($bc->blockinstanceid && !empty($skiptitle)) {
+            $bc->attributes['aria-labelledby'] = 'instance-'.$bc->blockinstanceid.'-header';
+        } else if (!empty($bc->arialabel)) {
+            $bc->attributes['aria-label'] = $bc->arialabel;
+        }
+        if ($bc->dockable) {
+            $bc->attributes['data-dockable'] = 1;
+        }
         if ($bc->collapsible == block_contents::HIDDEN) {
             $bc->add_class('hidden');
         }
         if (!empty($bc->controls)) {
             $bc->add_class('block_with_controls');
         }
 
-        $skiptitle = strip_tags($bc->title);
         if (empty($skiptitle)) {
             $output = '';
             $skipdest = '';