[automerger skipped] Add TestNetworkTracker to test utils. am: bc5ce1bf am:...
[automerger skipped] Add TestNetworkTracker to test utils. am: bc5ce1bf am: 5e33a41c am: 70b335a3 am: 275aaee1 -s ours am: 7c60ab9d -s ours
am skip reason: Change-Id I6f8d1e36670c46ebcbca01e0a64ce579bcdcc1f9 with SHA-1 bc5ce1bf is in history
Change-Id: Ia591aaf7b59625719fac69c8d23960bfa5a5b41d