This introduces LoginFormFactory which wraps FormLikeFactory for use with login-specific contexts.
MozReview-Commit-ID: 6rPz5JOy3Yp
--HG--
rename : toolkit/components/passwordmgr/LoginManagerContent.jsm => toolkit/modules/FormLikeFactory.jsm
extra : rebase_source : b2a28803def0dce3de4a01db5bdbc3217c5d0f83