tree a4a192dde85b865c18115a85d3e0f9952699443a
parent a3e8b239a43da534038ae4f4c350d3940713ee4c
author Yifan Hong <elsk@google.com> 1487815968 -0800
committer Yifan Hong <elsk@google.com> 1487877442 -0800

Use interfaceDescriptor instead of interfaceChain

wherever suits. Sementically, interfaceDescriptor
returns the first element of interfaceChain; use
interfaceDescriptor when the rest of the elements
aren't used.

Bug: 34136228

Test: hidl_test
Change-Id: Ie3332c168a792ab018d9b762f9bf6c15ddcbf998