Persist dynamically learned SPDY settings (like CWND).

net/http/http_server_properties.h

 // Copyright (c) 2011 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.
 
 #ifndef NET_HTTP_HTTP_SERVER_PROPERTIES_H_
 #define NET_HTTP_HTTP_SERVER_PROPERTIES_H_
 
 #include <map>
 #include <string>
 #include "base/basictypes.h"
 #include "net/base/host_port_pair.h"
 #include "net/base/net_export.h"
+#include "net/spdy/spdy_framer.h"  // TODO(willchan): Reconsider this.
 
 namespace net {
 
 enum AlternateProtocol {
   NPN_SPDY_1 = 0,
   NPN_SPDY_2,
   NUM_ALTERNATE_PROTOCOLS,
   ALTERNATE_PROTOCOL_BROKEN,  // The alternate protocol is known to be broken.
   UNINITIALIZED_ALTERNATE_PROTOCOL,
 };
 
 struct NET_EXPORT PortAlternateProtocolPair {
   bool Equals(const PortAlternateProtocolPair& other) const {
     return port == other.port && protocol == other.protocol;
   }
 
   std::string ToString() const;
 
   uint16 port;
   AlternateProtocol protocol;
 };
 
 typedef std::map<HostPortPair, PortAlternateProtocolPair> AlternateProtocolMap;
+typedef std::map<HostPortPair, spdy::SpdySettings> SpdySettingsMap;
 
 extern const char kAlternateProtocolHeader[];
 extern const char* const kAlternateProtocolStrings[NUM_ALTERNATE_PROTOCOLS];
 
 // The interface for setting/retrieving the HTTP server properties.
 // Currently, this class manages servers':
 // * SPDY support (based on NPN results)
 // * Alternate-Protocol support
+// * Spdy Settings (like CWND ID field)
 class NET_EXPORT HttpServerProperties {
  public:
   HttpServerProperties() {}
   virtual ~HttpServerProperties() {}
 
   // Deletes all data.
   virtual void Clear() = 0;
 
   // Returns true if |server| supports SPDY.
   virtual bool SupportsSpdy(const HostPortPair& server) const = 0;
@@ skipping 15 matching lines @@
   virtual void SetAlternateProtocol(const HostPortPair& server,
                                     uint16 alternate_port,
                                     AlternateProtocol alternate_protocol) = 0;
 
   // Sets the Alternate-Protocol for |server| to be BROKEN.
   virtual void SetBrokenAlternateProtocol(const HostPortPair& server) = 0;
 
   // Returns all Alternate-Protocol mappings.
   virtual const AlternateProtocolMap& alternate_protocol_map() const = 0;
 
+  // Gets a reference to the SpdySettings stored for a host.
+  // If no settings are stored, returns an empty set of settings.
+  virtual const spdy::SpdySettings& GetSpdySettings(
+      const HostPortPair& host_port_pair) const = 0;
+
+  // Saves settings for a host. Returns true if SpdySettings are to be
+  // persisted.
+  virtual bool SetSpdySettings(const HostPortPair& host_port_pair,
+                               const spdy::SpdySettings& settings) = 0;
+
+  // Clears all spdy_settings.
+  virtual void ClearSpdySettings() = 0;
+
+  // Returns all persistent SpdySettings.
+  virtual const SpdySettingsMap& spdy_settings_map() const = 0;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(HttpServerProperties);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_SERVER_PROPERTIES_H_