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

net/http/http_cache.h

Index: net/http/http_cache.h
===================================================================
--- net/http/http_cache.h	(revision 104227)
+++ net/http/http_cache.h	(working copy)
@@ -51,6 +51,7 @@
 class HttpNetworkSession;
 struct HttpRequestInfo;
 class HttpResponseInfo;
+class HttpServerProperties;
 class IOBuffer;
 class NetLog;
 class NetworkDelegate;
@@ -129,6 +130,7 @@
             SSLConfigService* ssl_config_service,
             HttpAuthHandlerFactory* http_auth_handler_factory,
             NetworkDelegate* network_delegate,
+            HttpServerProperties* http_server_properties,
             NetLog* net_log,
             BackendFactory* backend_factory);