Introduce net::HttpServerPropertiesManager to manage server-specific properties.

chrome/service/net/service_url_request_context.cc

Index: chrome/service/net/service_url_request_context.cc
===================================================================
--- chrome/service/net/service_url_request_context.cc	(revision 99284)
+++ chrome/service/net/service_url_request_context.cc	(working copy)
@@ -25,6 +25,7 @@
 #include "net/http/http_network_session.h"
 #include "net/proxy/proxy_config_service.h"
 #include "net/proxy/proxy_service.h"
+#include "net/spdy/spdy_config_service_defaults.h"
 
 namespace {
 // Copied from webkit/glue/user_agent.cc. We don't want to pull in a dependency
@@ -119,6 +120,7 @@
   storage_.set_dnsrr_resolver(new net::DnsRRResolver);
   storage_.set_ftp_transaction_factory(
       new net::FtpNetworkLayer(host_resolver()));
+  storage_.set_spdy_config_service(new net::SpdyConfigServiceDefaults);
   storage_.set_ssl_config_service(new net::SSLConfigServiceDefaults);
   storage_.set_http_auth_handler_factory(
       net::HttpAuthHandlerFactory::CreateDefault(host_resolver()));
@@ -128,6 +130,7 @@
   session_params.cert_verifier = cert_verifier();
   session_params.dnsrr_resolver = dnsrr_resolver();
   session_params.proxy_service = proxy_service();
+  session_params.spdy_config_service = spdy_config_service();
   session_params.ssl_config_service = ssl_config_service();
   session_params.http_auth_handler_factory = http_auth_handler_factory();
   scoped_refptr<net::HttpNetworkSession> network_session(