Pass WindowContext to DisplayInfoChangeListener

- WindowContext (or updated DisplayContext for Pre-S) contains updated Resources to be used for the listener

Fixes: 181215299
Fixes: 176656141
Test: Swap between large/small screen, large sreen UI is seen
Test: Swap between font size, launcher icon text is updated
Test: Start secondary home
Test: Repeat the above tests with Utilities.ATLEAST_S hardcoded to false
Change-Id: Ib33025ac0276c84fe2b3213e9946721e5988e3da