Remove unnecessary methods from QuicUnackedPacketMap and a minor

net/quic/quic_sent_packet_manager_test.cc

Index: net/quic/quic_sent_packet_manager_test.cc
diff --git a/net/quic/quic_sent_packet_manager_test.cc b/net/quic/quic_sent_packet_manager_test.cc
index e44dca53061a736328076e346da38a2c24241558..56fbcaa93c77d24238feb426459b0b1510a726d0 100644
--- a/net/quic/quic_sent_packet_manager_test.cc
+++ b/net/quic/quic_sent_packet_manager_test.cc
@@ -69,22 +69,13 @@ class QuicSentPacketManagerTest : public ::testing::TestWithParam<bool> {
 
   void VerifyRetransmittablePackets(QuicPacketSequenceNumber* packets,
                                     size_t num_packets) {
-    SequenceNumberSet unacked =
-        QuicSentPacketManagerPeer::GetUnackedPackets(&manager_);
-    for (size_t i = 0; i < num_packets; ++i) {
-      EXPECT_TRUE(ContainsKey(unacked, packets[i])) << packets[i];
-    }
-    size_t num_retransmittable = 0;
-    for (SequenceNumberSet::const_iterator it = unacked.begin();
-         it != unacked.end(); ++it) {
-      if (manager_.HasRetransmittableFrames(*it)) {
-        ++num_retransmittable;
-      }
-    }
     EXPECT_EQ(num_packets,
               QuicSentPacketManagerPeer::GetNumRetransmittablePackets(
                   &manager_));
-    EXPECT_EQ(num_packets, num_retransmittable);
+    for (size_t i = 0; i < num_packets; ++i) {
+      EXPECT_TRUE(manager_.HasRetransmittableFrames(packets[i]))
+          << " packets[" << i << "]:" << packets[i];
+    }
   }
 
   void ExpectAck(QuicPacketSequenceNumber largest_observed) {
@@ -557,9 +548,9 @@ TEST_F(QuicSentPacketManagerTest, TruncatedAck) {
   manager_.OnIncomingAck(received_info, clock_.Now());
 
   // High water mark will be raised.
-  QuicPacketSequenceNumber unacked[] = { 2, 3, 4 };
+  QuicPacketSequenceNumber unacked[] = { 2, 3, 4, 5 };
   VerifyUnackedPackets(unacked, arraysize(unacked));
-  QuicPacketSequenceNumber retransmittable[] = { 4 };
+  QuicPacketSequenceNumber retransmittable[] = { 5 };
   VerifyRetransmittablePackets(retransmittable, arraysize(retransmittable));
 }