See https://github.com/mozilla-mobile/fenix/issues/4046 for a detailed discussion of this.
In short, this patch removes code that would conditionally hide desktop bookmarks depending
on the signed-in state of the browser.
* For #4396 - Rename BookmarkInteractor methods
Following the naming model used in other Interactors this too will use reactive
method names in the form of "on..." instead of the previous imperative model.
Kept the imperative naming model for the methods from `SelectionInteractor` as
they are a new addition and I'm not sure about the future direction.
* For #4396 - Add a BookmarkController
It abstracts the Fragment behavior in a contract through which various
Interactors can inform about the specific View changes and can ask for
modifications in their container Fragment.
This contract and it's implementation - `DefaultBookmarkController` are the
result of extracting the container Fragment's business logic from
`BookmarkFragmentInteractor` in it's own standalone component.
* For #4396 - Refactored Bookmark related tests
Added a new `BookmarkControllerTest` tests class which complements the new
`BookmarkController` to ensure that it properly operates on `BookmarkFragment`
Also refactored the existing `BookmarkFragmentInteractorTest` to accommodate
`BookmarkFragmentInteractor`'s now more specialized behavior.
Grisha Kruglov
Antti Vainikka
ekager
Tiger Oakes
Sawyer Blatz
Colin Lee
Mugurell
Nikit Bhandari
Jonathan Almeida
Jeff Boek