tree 23eb4d5884504d73afecfb10f5254aa58a1c54ea
parent 6a4d95d08e2c765a22dbcda62c4aad9256aa4aad
author Jooyung Han <jooyung@google.com> 1579753406 +0900
committer Jooyung Han <jooyung@google.com> 1582689502 +0000

Use optional for nullable types

AIDL generates optional<T> for nullable T types for C++, which is more
efficient and idomatic and easy to use.

Bug: 144773267
Test: build/flash/boot
Merged-In: I98549c8614c9152d5d45e2f1f33f2f3c31a9bbbf
Change-Id: I98549c8614c9152d5d45e2f1f33f2f3c31a9bbbf
(cherry picked from commit 3ce0ee5363c9325e5c95dadbe24a03d94aedc90e)

Exempt-From-Owner-Approval: CP from master