Enable MSVC warning for unused locals.

net/quic/quic_unacked_packet_map_test.cc

Index: net/quic/quic_unacked_packet_map_test.cc
diff --git a/net/quic/quic_unacked_packet_map_test.cc b/net/quic/quic_unacked_packet_map_test.cc
index d31ce4425b0e187dcf65756496b79656f1a1bec7..622c36496faeb474d08a36e497a165943ab98e3f 100644
--- a/net/quic/quic_unacked_packet_map_test.cc
+++ b/net/quic/quic_unacked_packet_map_test.cc
@@ -185,8 +185,8 @@ TEST_F(QuicUnackedPacketMapTest, RetransmittedPacket) {
 
   unacked_packets_.RemoveFromInFlight(2);
   QuicPacketSequenceNumber unacked2[] = { 1 };
-  VerifyUnackedPackets(unacked, arraysize(unacked2));
-  VerifyInFlightPackets(unacked, arraysize(unacked2));
+  VerifyUnackedPackets(unacked2, arraysize(unacked2));

[Peter Kasting, 2014/11/18 00:41:03]

Technically this functions identically to the old code, since |unacked| starts
with 1, but I think this is what the author intended.

+  VerifyInFlightPackets(unacked2, arraysize(unacked2));
   VerifyRetransmittablePackets(nullptr, 0);
 
   unacked_packets_.RemoveFromInFlight(1);