Version: 56.0.2888.0
OS: Linux (Windows needs to be tested)

What steps will reproduce the problem?
(1) Go to any website (e.g. google.com) and trigger a notification by running this code in the JS console (click "allow" if prompted):
Notification.requestPermission().then(() => { new Notification('foo'); });
(2) Bring another application's window in front of Chrome.
(3) Click the settings (gear) button in the notification.

What is the expected output?
Chrome comes to the foreground and shows the notification settings page.

What do you see instead?
The notification settings page appears, but its window is behind the other application.

This was a Mac regression ( issue 655443 ), but it repros on Linux. Unsure if it's a regression there, and haven't tested on Windows yet.
 

Version: 54.0.2840.59
OS: Linux (Windows needs to be tested)

What steps will reproduce the problem?
(1) Go to any website (e.g. google.com) and trigger a notification by running this code in the JS console (click "allow" if prompted):
Notification.requestPermission().then(() => { (new Notification('foo')).onclick = () => window.focus(); });
(2) Bring another application's window in front of Chrome.
(3) Click the settings (gear) button in the notification, OR click the body of the notification.

What is the expected output?
Chrome comes to the foreground and shows the settings page, or the page which sent the notification (depending on whether you clicked the gear or the notification body).

What do you see instead?
The right page appears within Chrome, but the Chrome window doesn't come to the front/Chrome doesn't activate.

This was a very recent Mac regression ( issue 655443 ), but it repros on Linux stable. I'm unsure if it's a regression there, and haven't tested on Windows yet.