Add a probability to Alternate-Protocol support.

chrome/browser/net/http_server_properties_manager.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 CHROME_BROWSER_NET_HTTP_SERVER_PROPERTIES_MANAGER_H_
 #define CHROME_BROWSER_NET_HTTP_SERVER_PROPERTIES_MANAGER_H_
 
 #include <string>
 #include <vector>
 #include "base/basictypes.h"
@@ skipping 82 matching lines @@
   // Add |server| as the SPDY server which supports SPDY protocol into the
   // persisitent store. Should only be called from IO thread.
   virtual void SetSupportsSpdy(const net::HostPortPair& server,
                                bool support_spdy) OVERRIDE;
 
   // Returns true if |server| has an Alternate-Protocol header.
   virtual bool HasAlternateProtocol(const net::HostPortPair& server) OVERRIDE;
 
   // Returns the Alternate-Protocol and port for |server|.
   // HasAlternateProtocol(server) must be true.
-  virtual net::PortAlternateProtocolPair GetAlternateProtocol(
+  virtual net::AlternateProtocolInfo GetAlternateProtocol(
       const net::HostPortPair& server) OVERRIDE;
 
   // Sets the Alternate-Protocol for |server|.
   virtual void SetAlternateProtocol(
       const net::HostPortPair& server,
       uint16 alternate_port,
-      net::AlternateProtocol alternate_protocol) OVERRIDE;
+      net::AlternateProtocol alternate_protocol,
+      double alternate_probability) OVERRIDE;
 
   // Sets the Alternate-Protocol for |server| to be BROKEN.
   virtual void SetBrokenAlternateProtocol(
       const net::HostPortPair& server) OVERRIDE;
 
   // Returns true if Alternate-Protocol for |server| was recently BROKEN.
   virtual bool WasAlternateProtocolRecentlyBroken(
       const net::HostPortPair& server) OVERRIDE;
 
   // Confirms that Alternate-Protocol for |server| is working.
   virtual void ConfirmAlternateProtocol(
       const net::HostPortPair& server) OVERRIDE;
 
   // Clears the Alternate-Protocol for |server|.
   virtual void ClearAlternateProtocol(const net::HostPortPair& server) OVERRIDE;
 
   // Returns all Alternate-Protocol mappings.
   virtual const net::AlternateProtocolMap&
       alternate_protocol_map() const OVERRIDE;
 
   virtual void SetAlternateProtocolExperiment(
       net::AlternateProtocolExperiment experiment) OVERRIDE;
 
+  virtual void SetAlternateProtocolProbabilityThreshold(
+      double threshold) OVERRIDE;
+
   virtual net::AlternateProtocolExperiment GetAlternateProtocolExperiment()
       const OVERRIDE;
 
   // Gets a reference to the SettingsMap stored for a host.
   // If no settings are stored, returns an empty SettingsMap.
   virtual const net::SettingsMap& GetSpdySettings(
       const net::HostPortPair& host_port_pair) OVERRIDE;
 
   // Saves an individual SPDY setting for a host. Returns true if SPDY setting
   // is to be persisted.
@@ skipping 106 matching lines @@
       io_prefs_update_timer_;
 
   scoped_ptr<net::HttpServerPropertiesImpl> http_server_properties_impl_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpServerPropertiesManager);
 };
 
 }  // namespace chrome_browser_net
 
 #endif  // CHROME_BROWSER_NET_HTTP_SERVER_PROPERTIES_MANAGER_H_