Remove timestamp_receiver. Not used.

net/quic/congestion_control/timestamp_receiver_test.cc

-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/logging.h"
-#include "net/quic/congestion_control/timestamp_receiver.h"
-#include "net/quic/test_tools/mock_clock.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace net {
-namespace test {
-
-class TimestampReceiverTest : public ::testing::Test {
- protected:
-  TimestampReceiver receiver_;
-  MockClock clock_;
-};
-
-TEST_F(TimestampReceiverTest, SimpleReceiver) {
-  QuicTime start = clock_.ApproximateNow();
-  QuicTime::Delta received_delta = QuicTime::Delta::FromMilliseconds(10);
-  clock_.AdvanceTime(received_delta);
-  QuicTime receive_timestamp = clock_.ApproximateNow();
-  receiver_.RecordIncomingPacket(1, 1, receive_timestamp);
-
-  QuicCongestionFeedbackFrame feedback;
-  // Do not generate a congestion feedback frame because it has only one packet.
-  ASSERT_FALSE(receiver_.GenerateCongestionFeedback(&feedback));
-
-  clock_.AdvanceTime(received_delta);
-  receive_timestamp = clock_.ApproximateNow();
-  // Packet not received; but rather revived by FEC.
-  receiver_.RecordIncomingPacket(1, 2, receive_timestamp);
-  clock_.AdvanceTime(received_delta);
-  receive_timestamp = clock_.ApproximateNow();
-  receiver_.RecordIncomingPacket(1, 3, receive_timestamp);
-
-  ASSERT_TRUE(receiver_.GenerateCongestionFeedback(&feedback));
-
-  EXPECT_EQ(kTimestamp, feedback.type);
-  EXPECT_EQ(3u, feedback.timestamp.received_packet_times.size());
-  TimeMap::iterator it = feedback.timestamp.received_packet_times.begin();
-  EXPECT_EQ(1u, it->first);
-  EXPECT_EQ(QuicTime::Delta::FromMilliseconds(10), it->second.Subtract(start));
-  it = feedback.timestamp.received_packet_times.begin();
-  ++it;
-  EXPECT_EQ(2u, it->first);
-  EXPECT_EQ(QuicTime::Delta::FromMilliseconds(20), it->second.Subtract(start));
-  ++it;
-  EXPECT_EQ(3u, it->first);
-  EXPECT_EQ(QuicTime::Delta::FromMilliseconds(30), it->second.Subtract(start));
-}
-
-}  // namespace test
-}  // namespace net