rdsmith@: Could you take a look at it?

I'm not familiar with Chrome's window and process management, but what I imagined 
for the cause of the bug is:
* Chrome aborts all the downloads when all the processes are quit.
* Chrome shows the "Download in progress" dialog when closing the last window if it has pending downloads.
* On other OSes, closing the last window quits all the processes. In Chrome OS, it isn't.

FYI: I wrote a patch to remove the dialog form Chrome OS, though not sure if this is the expected behavior. Maybe aborting downloads also in Chrome OS might be appropriate.
https://chromium-review.googlesource.com/c/583956

I'm no longer working on downloads.  David, are you an appropriate person to lateral this bug to?

Yes I am thanks!  Will take a look.

Is there a difference between "Browser shutdown" and "all windows closing" on ChromeOS?  Because it seems like the expectation is that when all windows are closed the Profile is destroyed, which requires us to show this notification.  But from what you're saying it looks like that isn't the case (which makes sense if you've logged in and just closed all windows).

Thank you for taking a look at it!

> Because it seems like the expectation is that when all windows are closed the Profile is destroyed, which requires us to show this notification.  But from what you're saying it looks like that isn't the case (which makes sense if you've logged in and just closed all windows).

I logged in and just closed all windows.

I guess the alternative UI would be to show the dialog when you log out.  Either that or we make that dialog actually cancel the downloads.