Update from https://crrev.com/306655

net/quic/crypto/source_address_token.h

 // 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.
 
 #ifndef NET_QUIC_CRYPTO_SOURCE_ADDRESS_TOKEN_H_
 #define NET_QUIC_CRYPTO_SOURCE_ADDRESS_TOKEN_H_
 
 #include <string>
 
 #include "base/basictypes.h"
+#include "base/logging.h"
 #include "base/strings/string_piece.h"
 #include "net/base/net_export.h"
 #include "net/quic/crypto/cached_network_parameters.h"
 
 namespace net {
 
 // TODO(rtenneti): sync with server more rationally.
 // A SourceAddressToken is serialised, encrypted and sent to clients so that
 // they can prove ownership of an IP address.
 class NET_EXPORT_PRIVATE SourceAddressToken {
  public:
   SourceAddressToken();
   ~SourceAddressToken();
 
   std::string SerializeAsString() const;
 
   bool ParseFromArray(const char* plaintext, size_t plaintext_length);
 
   std::string ip() const {
     return ip_;
   }
   void set_ip(base::StringPiece ip) {
     ip_ = ip.as_string();
+    DCHECK_LE(ip_.size(),
+              static_cast<size_t>(std::numeric_limits<char>::max()));
   }
 
   int64 timestamp() const {
     return timestamp_;
   }
   void set_timestamp(int64 timestamp) {
     timestamp_ = timestamp;
   }
 
   const CachedNetworkParameters& cached_network_parameters() const {
@@ skipping 22 matching lines @@
   // TODO(rtenneti): Delete |has_cached_network_parameters_| after we convert
   // SourceAddressToken to protobuf.
   bool has_cached_network_parameters_;
 
   DISALLOW_COPY_AND_ASSIGN(SourceAddressToken);
 };
 
 }  // namespace net
 
 #endif  // NET_QUIC_CRYPTO_SOURCE_ADDRESS_TOKEN_H_