Detect Kaspersky SSL MITM and give a helpful error message.

net/socket/ssl_client_socket_nss.h

 // Copyright (c) 2011 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_SOCKET_SSL_CLIENT_SOCKET_NSS_H_
 #define NET_SOCKET_SSL_CLIENT_SOCKET_NSS_H_
 #pragma once
 
 #include <certt.h>
 #include <keyt.h>
@@ skipping 205 matching lines @@
 
   // True if NSS has called HandshakeCallback.
   bool handshake_callback_called_;
 
   // True if the SSL handshake has been completed.
   bool completed_handshake_;
 
   // True iff we believe that the user has an ESET product intercepting our
   // HTTPS connections.
   bool eset_mitm_detected_;
+  // True iff we believe that the user has a Kaspersky product intercepting our
+  // HTTPS connections.
+  bool kaspersky_mitm_detected_;
 
   // True iff |ssl_host_info_| contained a predicted certificate chain and
   // that we found the prediction to be correct.
   bool predicted_cert_chain_correct_;
 
   // The time when we started waiting for DNSSEC records.
   base::Time dnssec_wait_start_time_;
 
   State next_handshake_state_;
 
@@ skipping 15 matching lines @@
   // Added the following code Debugging in release mode.
   mutable base::Lock lock_;
   // This is mutable so that CalledOnValidThread can set it.
   // It's guarded by |lock_|.
   mutable base::PlatformThreadId valid_thread_id_;
 };
 
 }  // namespace net
 
 #endif  // NET_SOCKET_SSL_CLIENT_SOCKET_NSS_H_