Remove QUIC_VERSION_15 now that Chrome Stable supports QUIC_VERSION_16.

net/quic/quic_packet_generator_test.cc

 // 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.
 
 #include "net/quic/quic_packet_generator.h"
 
 #include <string>
 
 #include "net/quic/crypto/crypto_protocol.h"
 #include "net/quic/crypto/null_encrypter.h"
@@ skipping 118 matching lines @@
     delete packet5_.packet;
     delete packet5_.retransmittable_frames;
     delete packet6_.packet;
     delete packet6_.retransmittable_frames;
     delete packet7_.packet;
     delete packet7_.retransmittable_frames;
   }
 
   QuicAckFrame* CreateAckFrame() {
     // TODO(rch): Initialize this so it can be verified later.
-    return new QuicAckFrame(MakeAckFrame(0, 0));
+    return new QuicAckFrame(MakeAckFrame(0));
   }
 
   QuicCongestionFeedbackFrame* CreateFeedbackFrame() {
     QuicCongestionFeedbackFrame* frame = new QuicCongestionFeedbackFrame;
     frame->type = kFixRate;
     frame->fix_rate.bitrate = QuicBandwidth::FromBytesPerSecond(42);
     return frame;
   }
 
   QuicStopWaitingFrame* CreateStopWaitingFrame() {
@@ skipping 813 matching lines @@
 
   // The second should have the remainder of the stream data.
   PacketContents contents2;
   contents2.num_goaway_frames = 1;
   contents2.num_stream_frames = 1;
   CheckPacketContains(contents2, packet2_);
 }
 
 }  // namespace test
 }  // namespace net