Remove QUIC_VERSION_15 now that Chrome Stable supports QUIC_VERSION_16.

net/quic/test_tools/quic_test_utils.h

 // Copyright (c) 2012 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.
 //
 // Common utilities for Quic tests
 
 #ifndef NET_QUIC_TEST_TOOLS_QUIC_TEST_UTILS_H_
 #define NET_QUIC_TEST_TOOLS_QUIC_TEST_UTILS_H_
 
 #include <string>
@@ skipping 74 matching lines @@
     size_t* payload_length);
 
 // Returns QuicConfig set to default values.
 QuicConfig DefaultQuicConfig();
 
 // Returns a version vector consisting of |version|.
 QuicVersionVector SupportedVersions(QuicVersion version);
 
 // Testing convenience method to construct a QuicAckFrame with all packets
 // from least_unacked to largest_observed acked.
-QuicAckFrame MakeAckFrame(QuicPacketSequenceNumber largest_observed,
-                          QuicPacketSequenceNumber least_unacked);
+QuicAckFrame MakeAckFrame(QuicPacketSequenceNumber largest_observed);
 
 // Testing convenience method to construct a QuicAckFrame with |num_nack_ranges|
 // nack ranges of width 1 packet, starting from |least_unacked|.
 QuicAckFrame MakeAckFrameWithNackRanges(size_t num_nack_ranges,
                                         QuicPacketSequenceNumber least_unacked);
 
 // Returns a SerializedPacket whose |packet| member is owned by the caller, and
 // is populated with the fields in |header| and |frames|, or is NULL if the
 // packet could not be created.
 SerializedPacket BuildUnsizedDataPacket(QuicFramer* framer,
@@ skipping 433 matching lines @@
   MOCK_METHOD1(OnCongestionWindowChange, void(QuicByteCount));
 
  private:
   DISALLOW_COPY_AND_ASSIGN(MockNetworkChangeVisitor);
 };
 
 }  // namespace test
 }  // namespace net
 
 #endif  // NET_QUIC_TEST_TOOLS_QUIC_TEST_UTILS_H_