Update from https://crrev.com/311076

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 4a8c71bcbc7a0b0775a9258de69cb580fa5c983f..5be571f344a47bab77e6eef489cd763e4f10407c 100644
--- a/net/http/http_server_properties_manager.h
+++ b/net/http/http_server_properties_manager.h
@@ -92,6 +92,16 @@ class NET_EXPORT HttpServerPropertiesManager : public HttpServerProperties {
   // persisitent store. Should only be called from IO thread.
   void SetSupportsSpdy(const HostPortPair& server, bool support_spdy) override;
 
+  // Returns true if |server| has required HTTP/1.1 via HTTP/2 error code.
+  bool RequiresHTTP11(const HostPortPair& server) override;
+
+  // Require HTTP/1.1 on subsequent connections.  Not persisted.
+  void SetHTTP11Required(const HostPortPair& server) override;
+
+  // Modify SSLConfig to force HTTP/1.1 if necessary.
+  void MaybeForceHTTP11(const HostPortPair& server,
+                        SSLConfig* ssl_config) override;
+
   // Returns true if |server| has an Alternate-Protocol header.
   bool HasAlternateProtocol(const HostPortPair& server) override;