Fix DisplayState sanitization.

Bug: 347307756
Flag: EXEMPT bugfix
Test: CredentialsTest
Change-Id: I500ff9a5bd356845e2d0be4d1430448f448c4e8a
(cherry picked from commit b6ddf525be3c2abbde59ae1533494b18a7961087)
Merged-In: I500ff9a5bd356845e2d0be4d1430448f448c4e8a
9 files changed