Merge "Fix Safari test"

polygerrit-ui/app/elements/change/gr-reply-dialog/gr-reply-dialog_test.html

@@ -128,6 +128,8 @@ limitations under the License.
 
       // Async tick is needed because iron-selector content is distributed and
       // distributed content requires an observer to be set up.
+      // Note: Double flush seems to be needed in Safari. {@see Issue 4963}.
+      flush(function() {
         flush(function() {
           for (var label in element.permittedLabels) {
             assert.ok(element.$$('iron-selector[data-label="' + label + '"]'),
@@ -171,6 +173,7 @@ limitations under the License.
           });
         });
       });
+    });
 
     function getActiveElement() {
       return Polymer.IronOverlayManager.deepActiveElement;