No longer preconnect to unsafe ports.

net/base/net_util.h

 // Copyright (c) 2011 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_BASE_NET_UTIL_H_
 #define NET_BASE_NET_UTIL_H_
 #pragma once
 
 #include "build/build_config.h"
 
@@ skipping 296 matching lines @@
 NET_EXPORT void GenerateSafeFileName(const std::string& mime_type,
                                      bool ignore_extension,
                                      FilePath* file_path);
 
 // Checks |port| against a list of ports which are restricted by default.
 // Returns true if |port| is allowed, false if it is restricted.
 NET_EXPORT bool IsPortAllowedByDefault(int port);
 
 // Checks |port| against a list of ports which are restricted by the FTP
 // protocol.  Returns true if |port| is allowed, false if it is restricted.
-bool IsPortAllowedByFtp(int port);
+NET_EXPORT_PRIVATE bool IsPortAllowedByFtp(int port);
 
 // Check if banned |port| has been overriden by an entry in
 // |explicitly_allowed_ports_|.
-bool IsPortAllowedByOverride(int port);
+NET_EXPORT_PRIVATE bool IsPortAllowedByOverride(int port);
 
 // Set socket to non-blocking mode
 NET_EXPORT int SetNonBlocking(int fd);
 
 // Formats the host in |url| and appends it to |output|.  The host formatter
 // takes the same accept languages component as ElideURL().
 NET_EXPORT void AppendFormattedHost(const GURL& url,
                                     const std::string& languages,
                                     string16* output);
 
@@ skipping 174 matching lines @@
 
 // Returns list of network interfaces except loopback interface. If an
 // interface has more than one address, a separate entry is added to
 // the list for each address.
 // Can be called only on a thread that allows IO.
 NET_EXPORT bool GetNetworkList(NetworkInterfaceList* networks);
 
 }  // namespace net
 
 #endif  // NET_BASE_NET_UTIL_H_