Visit Uris related to Notification style extras

Even if the corresponding styles themselves were not applied to the Notification.Builder.

Test: atest NotificationManagerServiceTest
Bug: 287640400
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:a7e0c6585fd155d5bd9354b8b15516f4788c33a7)
Merged-In: I25acab19be7dd486aabede8c91dbad5a1a217abf
Change-Id: I25acab19be7dd486aabede8c91dbad5a1a217abf