Summary: Depends on D20357. Ref T13275. Now that there's a stronger layer between "stuff in the database" and "stuff on the screen", these subclasses all need to emit intermediate objects instead of raw, HTML-producing view objects. This update is mostly mechanical. Test Plan: - Viewed Home, Favorites, Portals, User Profiles, Project Profiles. - Clicked each item on each menu/profile type. - Added every (I think?) type of item to a menu and clicked them all. - Grepped for obsolete symbols (`newNavigationMenuItems`, `willBuildNavigationItems`). Reviewers: amckinley Reviewed By: amckinley Maniphest Tasks: T13275 Differential Revision: https://secure.phabricator.com/D20358