This replaces the StartupTaskManager we had with a more general class.
New implementation is a thread-safe "gated task executor", which either
runs the task right away if it's marked as 'ready', or queries it to be
executed later on.
This ability to either execute or queue a task will be useful later on in the
commit series.
- added PRIVATE MODE intent extra to the notification action
(could use also the OPEN_FROM_NOTIFICATION, but I considered this one to
be more explicit. Kept the old one in case other checks will be done
filtering for it)
- added intent? param to the getPrivateModeFromIntent method, because
onNewIntent() method does not set the activities intent, and it was needed
to be used both in onCreate() and onNewIntent()
This didn't function when 'open links in a private tab' was set. Rather than adding another sketchy fix for the edge case, following commits will change `usePrivateMode` to be maintained in memory, instead of in Settings.
* Do not launch in Private Mode
When the app launches do not launch in Private Mode in order to prevent usage leaks to other users of the device.
* Issue #4780: add comments to use private mode
* For #4780: write tests for clear private mode on create app
* For #4780: clear private mode when privacy notification is removed