Remove HTTP pipelining support.

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 16 matching lines @@
 class PrefService;
 class PrefRegistrySimple;
 class SystemURLRequestContextGetter;
 
 namespace base {
 class CommandLine;
 }
 
 namespace chrome_browser_net {
 class DnsProbeService;
-class HttpPipeliningCompatibilityClient;
 }
 
 namespace extensions {
 class EventRouterForwarder;
 }
 
 namespace net {
 class CertVerifier;
 class CookieStore;
 class CTVerifier;
@@ skipping 95 matching lines @@
     scoped_ptr<net::URLRequestContext> proxy_script_fetcher_context;
     scoped_ptr<net::ProxyService> system_proxy_service;
     scoped_ptr<net::HttpTransactionFactory> system_http_transaction_factory;
     scoped_ptr<net::URLRequestContext> system_request_context;
     SystemRequestContextLeakChecker system_request_context_leak_checker;
     // |system_cookie_store| and |system_server_bound_cert_service| are shared
     // between |proxy_script_fetcher_context| and |system_request_context|.
     scoped_refptr<net::CookieStore> system_cookie_store;
     scoped_refptr<extensions::EventRouterForwarder>
         extension_event_router_forwarder;
-    scoped_ptr<chrome_browser_net::HttpPipeliningCompatibilityClient>
-        http_pipelining_compatibility_client;
     scoped_ptr<net::HostMappingRules> host_mapping_rules;
     scoped_ptr<net::HttpUserAgentSettings> http_user_agent_settings;
     bool ignore_certificate_errors;
-    bool http_pipelining_enabled;
     uint16 testing_fixed_http_port;
     uint16 testing_fixed_https_port;
 
     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;
@@ skipping 204 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_