Implement support for notification.vibrate

chrome/test/data/notifications/platform_notification_service.html

Index: chrome/test/data/notifications/platform_notification_service.html
diff --git a/chrome/test/data/notifications/platform_notification_service.html b/chrome/test/data/notifications/platform_notification_service.html
index d0b412499bdb7a396b8cab7450a8e006563e1137..5d42c3ce6a8dafec5014e569f5b1ec0bd0fb0ed4 100644
--- a/chrome/test/data/notifications/platform_notification_service.html
+++ b/chrome/test/data/notifications/platform_notification_service.html
@@ -61,6 +61,14 @@
         });
       }
 
+      // Displays a persistent notification with vibrate field.
+      function DisplayPersistentNotificationVibrate() {
+        DisplayPersistentNotification('Title', {
+          body: 'Contents',
+          vibrate: [100, 200, 300]
+        });
+      }
+
       // Displays a persistent notification with a data: URL as its image.
       function DisplayPersistentNotificationDataUrlImage() {
         fetch('icon.png').then(function(response) {