When the user session is locked, the API usage will only be allowed
from the lock screen context.


When the user session is not locked, the API usage will only be
allowed outside the lock screen context - i.e. from the regular app
context.

The API that can be used by an app to create and manage data on the
Chrome OS lock screen.

The API usability will depend on the user session state:

  
    When the user session is locked, the API usage will only be allowed
    from the lock screen context.
  
  
    When the user session is not locked, the API usage will only be
    allowed outside the lock screen context - i.e. from the regular app
    context.
  


Note that apps have reduced access to Chrome apps APIs from the lock screen
context.

* available since Chrome 69
* https://developer.chrome.com/apps/lockScreen.data