Chrome Version: 72.0.3618.0 (Dev build)
OS: Chrome OS

What steps will reproduce the problem?
(1) Disable Crostini Files from chrome://flags
(2) Go to chrome://settings/crostini/sharedPaths

What is the expected result?
The user should be redirected back to the main settings page or crostini subpage.

What happens instead?
The (disabled) crostini shared paths page is shown.

This may be WAI but users may get mixed messages if the settings url is posted to a forum. We can fairly easily put the page's existence behind a flag check.