Log DESKTOP_MODE_MAXIMIZE_WINDOW janks stats for some uncovered cases.

See bug's description for context.

Flag: EXEMPT bugfix
Bug: 385385568
Test: atest DesktopModeWindowDecorViewModelTests
      Run `statsd_testdrive 305` with a desktop and check that
      DESKTOP_MODE_[UN]MAXIMIZE_WINDOW is recorded for the missing
      cases.

Change-Id: I37fdbbcd28fdb723154c13e18d4acf8394a40306