Summary:
Now that all the "remoting" of this method has been moved to TargetFactory.createTargetForTab,
we should rename this method to what it does now. It mostly call attach requests
of the target actor and its child console actor.
It also "connect" the webextension target actor, but I would like to eventually move that
outside of TabTarget.attach, like makeRemote.
Depends On D4078
Reviewers: yulia!
Tags: #secure-revision
Bug #: 1485676
Differential Revision: https://phabricator.services.mozilla.com/D6161
MozReview-Commit-ID: KmFi1LIUBga