Pass chrome version and channel in CHLO message to server.

chrome/browser/io_thread.h

 // 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.
 
 #ifndef CHROME_BROWSER_IO_THREAD_H_
 #define CHROME_BROWSER_IO_THREAD_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 158 matching lines @@
     Optional<bool> use_alternate_protocols;
     Optional<bool> enable_websocket_over_spdy;
 
     Optional<bool> enable_quic;
     Optional<bool> enable_quic_https;
     Optional<bool> enable_quic_pacing;
     Optional<bool> enable_quic_time_based_loss_detection;
     Optional<bool> enable_quic_persist_server_info;
     Optional<bool> enable_quic_port_selection;
     Optional<size_t> quic_max_packet_length;
+    Optional<std::string> client_version;

[Lei Zhang, 2014/06/05 07:30:47]

should this be named |quic_client_version| ?

[Ryan Hamilton, 2014/06/05 14:12:15]

nit: quic_client_version; (or quic_client_description)

[ramant (doing other things), 2014/06/05 17:07:49]

per Per jar/rch, changed |client_version| to |quic_user_agent_id|

[ramant (doing other things), 2014/06/05 17:07:49]

Per jar/rch, changed |client_version| to |quic_user_agent_id|

     Optional<net::QuicVersionVector> quic_supported_versions;
     Optional<net::HostPortPair> origin_to_force_quic_on;
     bool enable_user_alternate_protocol_ports;
     // NetErrorTabHelper uses |dns_probe_service| to send DNS probes when a
     // main frame load fails with a DNS error in order to provide more useful
     // information to the renderer so it can show a more specific error page.
     scoped_ptr<chrome_browser_net::DnsProbeService> dns_probe_service;
     scoped_ptr<data_reduction_proxy::DataReductionProxyParams>
         data_reduction_proxy_params;
   };
@@ skipping 183 matching lines @@
   bool is_spdy_disabled_by_policy_;
 
   base::WeakPtrFactory<IOThread> weak_factory_;
 
   const base::TimeTicks creation_time_;
 
   DISALLOW_COPY_AND_ASSIGN(IOThread);
 };
 
 #endif  // CHROME_BROWSER_IO_THREAD_H_