[31/n] Reduce ActivityRecord-LetterboxUiController dependency

Flag: EXEMPT refactor
Bug: 336807329
Test: atest WmTests:LetterboxUiControllerTest
Test: atest WmTests:SizeCompatTests
Test: atest WmTests:AppCompatUtilsTest

Change-Id: I065c77b17dd01d62ca3fa92a7db41e0606d3a2a9
10 files changed