tree 6d19261ff02c22bb11d8020b32ae54d4e1c150ed
parent 9d0e6cdfefa0b0614833fff38b01b0fcfc7379eb
author Yifan Hong <elsk@google.com> 1564001911 -0700
committer Yifan Hong <elsk@google.com> 1564013946 -0700

MetadataBuilder::IsABDevice: make static / use std::optional

Align with hat sRetrofitDap does.

Test: liblp_test_static
Change-Id: Ifc4c45404369a4eb18c02fc6a0ede938da5809b8