[automerger skipped] Add TestNetworkTracker to test utils. am: bc5ce1bf am:...
[automerger skipped] Add TestNetworkTracker to test utils. am: bc5ce1bf am: 5e33a41c -s ours am: fb2d2cfe -s ours
am skip reason: Change-Id I6f8d1e36670c46ebcbca01e0a64ce579bcdcc1f9 with SHA-1 b6045266 is in history
Change-Id: Ic44b8869651132d71da7ce9d1465b2e72932e47e