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

Check that the userInfo part of the content URI is
either implicit or the same as the current userId.

Bug: 296915500
Flag: EXEMPT fix for vulnerability
Test: atest GoogleBluetoothInstrumentationTests:BluetoothOppSendFileInfoTest
Ignore-AOSP-First: fix for undisclosed vulnerability
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:534e3a698d4805ac28f9d7916dbc7074a2ca4aad)
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:3b48090965cefd19b8007f9452b9f79e68084482)
Merged-In: I484c99fc392fb172e0c598511204ba520049f4e9
Change-Id: I484c99fc392fb172e0c598511204ba520049f4e9