import_controller_unittest: spell correct, remove, update @types

 - spell correct impoter => importer
 - remove @param {!DirectoryEntry} destination
   - the affected functions don't have parameters
 - fix obvious @type errors
   - event listener functions receive an {!Event}
   - arrays are @type {!Array<whatever>} for sure
 - remove importer.CommandUpdate
   - this @type does not exist in the code base
 - importer.ImportControler => importer.ImportController
 - add TODO to determine class @override types
 - auto-format the code

Bug: 914197
Change-Id: Ib225ed6030e70c0676f04f4f730e72e6b48eec4b
Reviewed-on: https://chromium-review.googlesource.com/c/1375201
Commit-Queue: Noel Gordon <noel@chromium.org>
Reviewed-by: Sam McNally <sammc@chromium.org>
Cr-Commit-Position: refs/heads/master@{#616299}
1 file changed