Implement support for notification.vibrate

ui/message_center/notification.h

Index: ui/message_center/notification.h
diff --git a/ui/message_center/notification.h b/ui/message_center/notification.h
index 060cddaef49dcc1156658e010abe6caa60683c0c..09b7b5aecfe175fbb017818218b80d65c6599003 100644
--- a/ui/message_center/notification.h
+++ b/ui/message_center/notification.h
@@ -50,6 +50,7 @@ class MESSAGE_CENTER_EXPORT RichNotificationData {
   std::vector<ButtonInfo> buttons;
   bool should_make_spoken_feedback_for_popup_updates;
   bool clickable;
+  std::vector<int> vibrate;
   bool silent;
 };
 
@@ -104,6 +105,12 @@ class MESSAGE_CENTER_EXPORT Notification {
   int priority() const { return optional_fields_.priority; }
   void set_priority(int priority) { optional_fields_.priority = priority; }
 
+  // This vibrate property currently has no effect on non-Android platforms.
+  const std::vector<int>& vibrate() const { return optional_fields_.vibrate; }
+  void set_vibrate(const std::vector<int>& vibrate) {
+    optional_fields_.vibrate = vibrate;
+  }
+
   // This property currently has no effect on non-Android platforms.
   bool silent() const { return optional_fields_.silent; }
   void set_silent(bool silent) { optional_fields_.silent = silent; }