Chrome Version: ToT
OS: Chrome

What steps will reproduce the problem?
(1) Show chrome notification with at least one action button. For example, by the following code:

chrome.notifications.create(
        'basic2',
        {
          type: 'basic',
          iconUrl: 'icon.png',
          title: 'title',
          message: 'message',
          buttons: [
            {title: 'Button 1'},
          ],
        });

(2) Open message center
(3) Hit TAB several times.

What is the expected result?
Close button should be focused.

What happens instead?
Close button can not be focused.

Please use labels and text to provide additional information.


For graphics-related bugs, please copy/paste the contents of the about:gpu
page at the end of this report.