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

net/url_request/url_request_context_storage.h

Index: net/url_request/url_request_context_storage.h
===================================================================
--- net/url_request/url_request_context_storage.h	(revision 99284)
+++ net/url_request/url_request_context_storage.h	(working copy)
@@ -25,6 +25,7 @@
 class NetworkDelegate;
 class OriginBoundCertService;
 class ProxyService;
+class SpdyConfigService;
 class SSLConfigService;
 class TransportSecurityState;
 class URLRequestContext;
@@ -53,6 +54,7 @@
   void set_http_auth_handler_factory(
       HttpAuthHandlerFactory* http_auth_handler_factory);
   void set_proxy_service(ProxyService* proxy_service);
+  void set_spdy_config_service(SpdyConfigService* spdy_config_service);
   void set_ssl_config_service(SSLConfigService* ssl_config_service);
   void set_network_delegate(NetworkDelegate* network_delegate);
   void set_cookie_store(CookieStore* cookie_store);
@@ -80,6 +82,7 @@
   scoped_ptr<HttpAuthHandlerFactory> http_auth_handler_factory_;
   scoped_ptr<ProxyService> proxy_service_;
   // TODO(willchan): Remove refcounting on these members.
+  scoped_refptr<SpdyConfigService> spdy_config_service_;
   scoped_refptr<SSLConfigService> ssl_config_service_;
   scoped_ptr<NetworkDelegate> network_delegate_;
   scoped_refptr<CookieStore> cookie_store_;