SPDY - persist 300 most recently used servers that support SPDY to preferences file

net/http/http_server_properties.h

 // Copyright (c) 2012 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"
@@ skipping 103 matching lines @@
   HttpServerProperties() {}
   virtual ~HttpServerProperties() {}
 
   // Gets a weak pointer for this object.
   virtual base::WeakPtr<HttpServerProperties> GetWeakPtr() = 0;
 
   // Deletes all data.
   virtual void Clear() = 0;
 
   // Returns true if |server| supports SPDY.
-  virtual bool SupportsSpdy(const HostPortPair& server) const = 0;
+  virtual bool SupportsSpdy(const HostPortPair& server) = 0;
 
   // Add |server| into the persistent store. Should only be called from IO
   // thread.
   virtual void SetSupportsSpdy(const HostPortPair& server,
                                bool support_spdy) = 0;
 
   // Returns true if |server| has an Alternate-Protocol header.
   virtual bool HasAlternateProtocol(const HostPortPair& server) = 0;
 
   // Returns the Alternate-Protocol and port for |server|.
@@ skipping 60 matching lines @@
 
   virtual PipelineCapabilityMap GetPipelineCapabilityMap() const = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(HttpServerProperties);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_SERVER_PROPERTIES_H_