Remove HTTP pipelining support.

net/http/http_server_properties_impl.cc

Index: net/http/http_server_properties_impl.cc
diff --git a/net/http/http_server_properties_impl.cc b/net/http/http_server_properties_impl.cc
index bd7de2f8239a26a3aba43d22407bfebec49b9bb0..45d87583de775a5738f5f475d5b239377dfbdd68 100644
--- a/net/http/http_server_properties_impl.cc
+++ b/net/http/http_server_properties_impl.cc
@@ -11,17 +11,11 @@
 #include "base/stl_util.h"
 #include "base/strings/string_util.h"
 #include "base/strings/stringprintf.h"
-#include "net/http/http_pipelined_host_capability.h"
 
 namespace net {
 
 namespace {
 
-// TODO(simonjam): Run experiments with different values of this to see what
-// value is good at avoiding evictions without eating too much memory. Until
-// then, this is just a bad guess.
-const int kDefaultNumHostsToRemember = 200;
-
 const uint64 kBrokenAlternateProtocolDelaySecs = 300;
 
 }  // namespace
@@ -32,8 +26,6 @@ HttpServerPropertiesImpl::HttpServerPropertiesImpl()
       alternate_protocol_experiment_(
           ALTERNATE_PROTOCOL_NOT_PART_OF_EXPERIMENT),
       spdy_settings_map_(SpdySettingsMap::NO_AUTO_EVICT),
-      pipeline_capability_map_(
-          new CachedPipelineCapabilityMap(kDefaultNumHostsToRemember)),
       weak_ptr_factory_(this) {
   canoncial_suffixes_.push_back(".c.youtube.com");
   canoncial_suffixes_.push_back(".googlevideo.com");
@@ -109,21 +101,6 @@ void HttpServerPropertiesImpl::InitializeSpdySettingsServers(
   }
 }
 
-void HttpServerPropertiesImpl::InitializePipelineCapabilities(
-    const PipelineCapabilityMap* pipeline_capability_map) {
-  PipelineCapabilityMap::const_iterator it;
-  pipeline_capability_map_->Clear();
-  for (it = pipeline_capability_map->begin();
-       it != pipeline_capability_map->end(); ++it) {
-    pipeline_capability_map_->Put(it->first, it->second);
-  }
-}
-
-void HttpServerPropertiesImpl::SetNumPipelinedHostsToRemember(int max_size) {
-  DCHECK(pipeline_capability_map_->empty());
-  pipeline_capability_map_.reset(new CachedPipelineCapabilityMap(max_size));
-}
-
 void HttpServerPropertiesImpl::GetSpdyServerList(
     base::ListValue* spdy_server_list,
     size_t max_size) const {
@@ -178,7 +155,6 @@ void HttpServerPropertiesImpl::Clear() {
   spdy_servers_map_.Clear();
   alternate_protocol_map_.Clear();
   spdy_settings_map_.Clear();
-  pipeline_capability_map_->Clear();
 }
 
 bool HttpServerPropertiesImpl::SupportsSpdy(
@@ -430,43 +406,6 @@ HttpServerPropertiesImpl::GetServerNetworkStats(
   return &it->second;
 }
 
-HttpPipelinedHostCapability HttpServerPropertiesImpl::GetPipelineCapability(
-    const HostPortPair& origin) {
-  HttpPipelinedHostCapability capability = PIPELINE_UNKNOWN;
-  CachedPipelineCapabilityMap::const_iterator it =
-      pipeline_capability_map_->Get(origin);
-  if (it != pipeline_capability_map_->end()) {
-    capability = it->second;
-  }
-  return capability;
-}
-
-void HttpServerPropertiesImpl::SetPipelineCapability(
-      const HostPortPair& origin,
-      HttpPipelinedHostCapability capability) {
-  CachedPipelineCapabilityMap::iterator it =
-      pipeline_capability_map_->Peek(origin);
-  if (it == pipeline_capability_map_->end() ||
-      it->second != PIPELINE_INCAPABLE) {
-    pipeline_capability_map_->Put(origin, capability);
-  }
-}
-
-void HttpServerPropertiesImpl::ClearPipelineCapabilities() {
-  pipeline_capability_map_->Clear();
-}
-
-PipelineCapabilityMap
-HttpServerPropertiesImpl::GetPipelineCapabilityMap() const {
-  PipelineCapabilityMap result;
-  CachedPipelineCapabilityMap::const_iterator it;
-  for (it = pipeline_capability_map_->begin();
-       it != pipeline_capability_map_->end(); ++it) {
-    result[it->first] = it->second;
-  }
-  return result;
-}
-
 HttpServerPropertiesImpl::CanonicalHostMap::const_iterator
 HttpServerPropertiesImpl::GetCanonicalHost(HostPortPair server) const {
   for (size_t i = 0; i < canoncial_suffixes_.size(); ++i) {