Update from chromium https://crrev.com/301315

net/http/http_server_properties_manager.h

Index: net/http/http_server_properties_manager.h
diff --git a/net/http/http_server_properties_manager.h b/net/http/http_server_properties_manager.h
index 79506c410e49bc74be4dbae185a3530002cd5044..4acf76fc333dd82fdbf0102abc2c03ae7c621642 100644
--- a/net/http/http_server_properties_manager.h
+++ b/net/http/http_server_properties_manager.h
@@ -120,13 +120,8 @@ class NET_EXPORT HttpServerPropertiesManager : public HttpServerProperties {
   // Returns all Alternate-Protocol mappings.
   const AlternateProtocolMap& alternate_protocol_map() const override;
 
-  void SetAlternateProtocolExperiment(
-      AlternateProtocolExperiment experiment) override;
-
   void SetAlternateProtocolProbabilityThreshold(double threshold) override;
 
-  AlternateProtocolExperiment GetAlternateProtocolExperiment() const override;
-
   // Gets a reference to the SettingsMap stored for a host.
   // If no settings are stored, returns an empty SettingsMap.
   const SettingsMap& GetSpdySettings(
@@ -189,7 +184,6 @@ class NET_EXPORT HttpServerPropertiesManager : public HttpServerProperties {
       std::vector<std::string>* spdy_servers,
       SpdySettingsMap* spdy_settings_map,
       AlternateProtocolMap* alternate_protocol_map,
-      AlternateProtocolExperiment alternate_protocol_experiment,
       SupportsQuicMap* supports_quic_map,
       bool detected_corrupted_prefs);