Remove SPDY 2.1 support.

net/http/http_stream_factory.cc

 // 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.
 
 #include "net/http/http_stream_factory.h"
 
 #include "base/logging.h"
 #include "base/string_number_conversions.h"
 #include "base/string_split.h"
 #include "googleurl/src/gurl.h"
@@ skipping 151 matching lines @@
   // Avoid alternate protocol in this case. Otherwise, browser will try SSL
   // and then fallback to http. This introduces extra load.
   set_use_alternate_protocols(false);
   std::vector<std::string> next_protos;
   next_protos.push_back("http/1.1");
   next_protos.push_back("http1.1");
   SetNextProtos(next_protos);
 }
 
 // static
-void HttpStreamFactory::EnableFlowControl() {
-  std::vector<std::string> next_protos;
-  next_protos.push_back("http/1.1");
-  next_protos.push_back("spdy/2");
-  next_protos.push_back("spdy/2.1");
-  SetNextProtos(next_protos);
-}
-
-// static
 void HttpStreamFactory::EnableNpnSpdy3() {
   std::vector<std::string> next_protos;
   next_protos.push_back("http/1.1");
   next_protos.push_back("spdy/2");
-  next_protos.push_back("spdy/2.1");
   next_protos.push_back("spdy/3");
   SetNextProtos(next_protos);
 }
 
 // static
 void HttpStreamFactory::SetNextProtos(const std::vector<std::string>& value) {
   if (!next_protos_)
     next_protos_ = new std::vector<std::string>;
 
   *next_protos_ = value;
 
   for (uint32 i = 0; i < NUM_ALTERNATE_PROTOCOLS; ++i)
     enabled_protocols_[i] = false;
 
   // TODO(rtenneti): bug 116575 - consider using same strings/enums for SPDY
   // versions in next_protos and kAlternateProtocolStrings.
   for (uint32 i = 0; i < value.size(); ++i) {
     if (value[i] == "spdy/1") {
       enabled_protocols_[NPN_SPDY_1] = true;
     } else if (value[i] == "spdy/2") {
       enabled_protocols_[NPN_SPDY_2] = true;
-    } else if (value[i] == "spdy/2.1") {
-      enabled_protocols_[NPN_SPDY_21] = true;
     } else if (value[i] == "spdy/3") {
       enabled_protocols_[NPN_SPDY_3] = true;
     }
   }
   enabled_protocols_[NPN_SPDY_1] = false;
 }
 
 // static
 void HttpStreamFactory::SetHostMappingRules(const std::string& rules) {
   HostMappingRules* host_mapping_rules = new HostMappingRules;
   host_mapping_rules->SetRulesFromString(rules);
   delete host_mapping_rules_;
   host_mapping_rules_ = host_mapping_rules;
 }
 
 HttpStreamFactory::HttpStreamFactory() {}
 
 // static
 const HostMappingRules& HttpStreamFactory::host_mapping_rules() {
   if (!host_mapping_rules_)
     host_mapping_rules_ = new HostMappingRules;
   return *host_mapping_rules_;
 }
 
 }  // namespace net