Plumbing for TCP FastOpen field trial and enables it for SSL sockets.

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 151 matching lines @@
 #if defined(ENABLE_EXTENSIONS)
     scoped_refptr<extensions::EventRouterForwarder>
         extension_event_router_forwarder;
 #endif
     scoped_ptr<net::HostMappingRules> host_mapping_rules;
     scoped_ptr<net::HttpUserAgentSettings> http_user_agent_settings;
     bool enable_ssl_connect_job_waiting;
     bool ignore_certificate_errors;
     uint16 testing_fixed_http_port;
     uint16 testing_fixed_https_port;
+    Optional<bool> enable_tcp_fast_open_for_ssl;
 
     Optional<size_t> initial_max_spdy_concurrent_streams;
     Optional<bool> force_spdy_single_domain;
     Optional<bool> enable_spdy_compression;
     Optional<bool> enable_spdy_ping_based_connection_checking;
     Optional<net::NextProto> spdy_default_protocol;
     net::NextProtoVector next_protos;
     Optional<string> trusted_spdy_proxy;
     Optional<bool> force_spdy_over_ssl;
     Optional<bool> force_spdy_always;
@@ skipping 76 matching lines @@
   virtual void InitAsync() OVERRIDE;
   virtual void CleanUp() OVERRIDE;
 
   // Initializes |params| based on the settings in |globals|.
   static void InitializeNetworkSessionParamsFromGlobals(
       const Globals& globals,
       net::HttpNetworkSession::Params* params);
 
   void InitializeNetworkOptions(const base::CommandLine& parsed_command_line);
 
+  // Sets up TCP FastOpen if enabled via field trials or via the command line.
+  void ConfigureTCPFastOpen(const base::CommandLine& command_line);
+
   // Enable SPDY with the given mode, which may contain the following:
   //
   //   "off"                      : Disables SPDY support entirely.
   //   "ssl"                      : Forces SPDY for all HTTPS requests.
   //   "no-ssl"                   : Forces SPDY for all HTTP requests.
   //   "no-ping"                  : Disables SPDY ping connection testing.
   //   "exclude=<host>"           : Disables SPDY support for the host <host>.
   //   "no-compress"              : Disables SPDY header compression.
   //   "no-alt-protocols          : Disables alternate protocol support.
   //   "force-alt-protocols       : Forces an alternate protocol of SPDY/3
@@ skipping 170 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_