Add explicit exported tags

Bug: 195988762
Test: make javac-check
Change-Id: Ifd07672da0141c74ad32613a17691c6cd09e54de
Merged-In: Ifd07672da0141c74ad32613a17691c6cd09e54de
(cherry picked from commit 7512a62755e44e1156fa13df55df3d7b4124a6ef)
3 files changed