Ensure the top-resumed-activity is updated after WCT applied

The Recents activity was resumed while applying WCT, and the
top-resumed-activity change was not reported after commit 171d4ad.

Bug: 376184135
Test: Swipe up to Recents
Flag: EXEMPT bugfix
Change-Id: I5ed3885b47b7f1f9fe003011ea265942251279a9
1 file changed