Move quic_bug_tracker to quic/platform. No functional change expected.

net/quic/core/quic_config.cc

 // Copyright (c) 2013 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/core/quic_config.h"
 
 #include <algorithm>
 
 #include "base/logging.h"
 #include "net/quic/core/crypto/crypto_handshake_message.h"
 #include "net/quic/core/crypto/crypto_protocol.h"
-#include "net/quic/core/quic_bug_tracker.h"
 #include "net/quic/core/quic_flags.h"
 #include "net/quic/core/quic_socket_address_coder.h"
 #include "net/quic/core/quic_utils.h"
+#include "net/quic/platform/api/quic_bug_tracker.h"
 
 using std::string;
 
 namespace net {
 
 // Reads the value corresponding to |name_| from |msg| into |out|. If the
 // |name_| is absent in |msg| and |presence| is set to OPTIONAL |out| is set
 // to |default_value|.
 QuicErrorCode ReadUint32(const CryptoHandshakeMessage& msg,
                          QuicTag tag,
@@ skipping 682 matching lines @@
                                                  error_details);
   }
   if (error == QUIC_NO_ERROR) {
     error = support_max_header_list_size_.ProcessPeerHello(
         peer_hello, hello_type, error_details);
   }
   return error;
 }
 
 }  // namespace net