[2/n] Optimize user aspect ratio button heuristic

Don't show the user aspect ratio settings button after a transparent
activity has been dismissed if it was previously shown for the previous
activity.

Test: atest WMShellUnitTests:CompatUIControllerTest
Fix: 299080123
Bug: 289356588
Change-Id: Iab00c25cb0c105696bdd40dd4ebc35c5f34ed1b0