Remove HTTP pipelining support.

net/http/http_network_session.h

Index: net/http/http_network_session.h
diff --git a/net/http/http_network_session.h b/net/http/http_network_session.h
index 04bd6ec241cf0ab0f0709188f6f361ee21a2d65a..9831aa7523cf82ecb1a07dd9c1ea41dc313fe24b 100644
--- a/net/http/http_network_session.h
+++ b/net/http/http_network_session.h
@@ -73,9 +73,7 @@ class NET_EXPORT HttpNetworkSession
     base::WeakPtr<HttpServerProperties> http_server_properties;
     NetLog* net_log;
     HostMappingRules* host_mapping_rules;
-    bool force_http_pipelining;
     bool ignore_certificate_errors;
-    bool http_pipelining_enabled;
     uint16 testing_fixed_http_port;
     uint16 testing_fixed_https_port;
     bool force_spdy_single_domain;
@@ -173,15 +171,9 @@ class NET_EXPORT HttpNetworkSession
   void CloseAllConnections();
   void CloseIdleConnections();
 
-  bool force_http_pipelining() const { return force_http_pipelining_; }
-
   // Returns the original Params used to construct this session.
   const Params& params() const { return params_; }
 
-  void set_http_pipelining_enabled(bool enable) {
-    params_.http_pipelining_enabled = enable;
-  }
-
  private:
   friend class base::RefCounted<HttpNetworkSession>;
   friend class HttpNetworkSessionPeer;
@@ -195,7 +187,6 @@ class NET_EXPORT HttpNetworkSession
   const base::WeakPtr<HttpServerProperties> http_server_properties_;
   CertVerifier* const cert_verifier_;
   HttpAuthHandlerFactory* const http_auth_handler_factory_;
-  bool force_http_pipelining_;
 
   // Not const since it's modified by HttpNetworkSessionPeer for testing.
   ProxyService* proxy_service_;