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:87db980ca1270083a2ba3c7317402a0cd289fd65)
Merged-In: I25acab19be7dd486aabede8c91dbad5a1a217abf
Change-Id: I25acab19be7dd486aabede8c91dbad5a1a217abf