tree 9d4bad9eeaf1b972c6b0e496268b89a9649d280c
parent e83c6624f3c36fee5d8457f749b657a2f15d9ff0
author Zoe Liu <zoeliu@google.com> 1522355856 -0700
committer Yaowu Xu <yaowu@google.com> 1522638486 +0000

Unify the ref frame map indexes

This CL is to unify the definition for the map index for all the
reference frames, hence making the code cleaner to avoid unnecessary
confusion.

Change-Id: Ie000989eb2028c315dc76367ded03d3291f25ca0