Pass chrome version and channel in CHLO message to server.

net/quic/crypto/crypto_handshake_message.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/crypto/crypto_handshake_message.h"
 
 #include "base/strings/stringprintf.h"
 #include "base/strings/string_number_conversions.h"
 #include "net/quic/crypto/crypto_framer.h"
 #include "net/quic/crypto/crypto_protocol.h"
@@ skipping 283 matching lines @@
 
             done = true;
           }
         }
         break;
       case kPAD:
         ret += StringPrintf("(%d bytes of padding)",
                             static_cast<int>(it->second.size()));
         done = true;
         break;
+      case kCVER:
+        ret += it->second;
+        done = true;
+        break;
     }
 
     if (!done) {
       // If there's no specific format for this tag, or the value is invalid,
       // then just use hex.
       ret += "0x" + base::HexEncode(it->second.data(), it->second.size());
     }
     ret += "\n";
   }
   --indent;
   ret += string(2 * indent, ' ') + ">";
   return ret;
 }
 
 }  // namespace net