[Chipbar] Move the controller that was common between the media ttt

sender and media ttt receiver into a more generic
TemporaryViewDisplayController class.

Future CLs will pull all the media-specific code out of this generic
class.

Bug: 245610654
Test: media.taptotransfer tests
Test: temporarydisplay tests
Test: verify media ttt chip still works
Change-Id: I814c04068fbd2b02521dd9bf8b2794bb0273464b