tree 1161a4d2def82d342503d405cfa95e2e80b339b3
parent 8f72b4037022c4f860caafa296e2ac309bde177f
author Doris Liu <tianliu@google.com> 1431375811 -0700
committer Doris Liu <tianliu@google.com> 1431375811 -0700

Use ArrayMap instead of HashMap for storing relavant nodes

This fix is to take advantage of ArrayMap, which is a key-value
mapping data structure that is more memory efficient than HashMap.

Bug: 11604254
Change-Id: I57006880de570a4d7f3899e274cf0a06355d116b