RESTRICT AUTOMERGE backport "opp: validate that content uri belongs to current user"

Bug: 296915500
Flag: EXEMPT trivial fix with complete testing coverage
Test: atest GoogleBluetoothInstrumentationTests:BluetoothOppSendFileInfoTest
Ignore-AOSP-First: fix for undisclosed vulnerability
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:5bcfd347823f1d3893d843db2286f2013923fad8)
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:d2e609af40232d899621465e5cd7eeb670476240)
Merged-In: Ibff36089bfde4b5bb28d797aeae1423b668943a2
Change-Id: Ibff36089bfde4b5bb28d797aeae1423b668943a2