Fix SecureLockScreenSession

1) If SecureLockScreenSession constructor throws, close() will never get
   called.
2) If close() fails to dismiss lockscreen, super.close() won't be called
   leaving the lockscreen set.

Bug: 406224545
Test: atest StreamedAppClipboardTest
Flag: TEST_ONLY
Change-Id: I07afca4192a3ace007912e8d44d906ed911626e8
1 file changed