QUIC - Allow cronet apps to specify how many server configs are to be

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 6779a2147672da241c719bb2a99460a549bc789d..b08ae16d20a1bf68c462e64595dc7dd1c1c65631 100644
--- a/net/http/http_server_properties_manager.h
+++ b/net/http/http_server_properties_manager.h
@@ -134,6 +134,9 @@ class NET_EXPORT HttpServerPropertiesManager : public HttpServerProperties {
                          const std::string& server_info) override;
   const std::string* GetQuicServerInfo(const QuicServerId& server_id) override;
   const QuicServerInfoMap& quic_server_info_map() const override;
+  size_t max_server_configs_stored_in_properties() const override;
+  void SetMaxServerConfigsStoredInProperties(
+      size_t max_server_configs_stored_in_properties) override;
 
  protected:
   // The location where ScheduleUpdatePrefsOnNetworkThread was called.