Explicitly whitelist the test server port.

net/base/net_util.h

 // Copyright (c) 2010 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 53 matching lines @@
 extern const FormatUrlType kFormatUrlOmitHTTP;
 
 // Omits the path if it is just a slash and there is no query or ref.  This is
 // meaningful for non-file "standard" URLs.
 extern const FormatUrlType kFormatUrlOmitTrailingSlashOnBareHostname;
 
 // Convenience for omitting all unecessary types.
 extern const FormatUrlType kFormatUrlOmitAll;
 
 // Holds a list of ports that should be accepted despite bans.
-extern std::set<int> explicitly_allowed_ports;
+extern std::multiset<int> explicitly_allowed_ports;
 
 // Given the full path to a file name, creates a file: URL. The returned URL
 // may not be valid if the input is malformed.
 GURL FilePathToFileURL(const FilePath& path);
 
 // Converts a file: URL back to a filename that can be passed to the OS. The
 // file URL must be well-formed (GURL::is_valid() must return true); we don't
 // handle degenerate cases here. Returns true on success, false if it isn't a
 // valid file URL. On failure, *file_path will be empty.
 bool FileURLToFilePath(const GURL& url, FilePath* file_path);
@@ skipping 246 matching lines @@
 // format flag including kFormatUrlOmitTrailingSlashOnBareHostname.
 bool CanStripTrailingSlash(const GURL& url);
 
 // Strip the portions of |url| that aren't core to the network request.
 //   - user name / password
 //   - reference section
 GURL SimplifyUrlForRequest(const GURL& url);
 
 void SetExplicitlyAllowedPorts(const std::string& allowed_ports);
 
+class ScopedPortException {
+ public:
+  ScopedPortException(int port);
+  ~ScopedPortException();
+
+ private:
+  int port_;
+
+  DISALLOW_COPY_AND_ASSIGN(ScopedPortException);
+};
+
 // Perform a simplistic test to see if IPv6 is supported by trying to create an
 // IPv6 socket.
 // TODO(jar): Make test more in-depth as needed.
 bool IPv6Supported();
 
 // Returns true if it can determine that only loopback addresses are configured.
 // i.e. if only 127.0.0.1 and ::1 are routable.
 bool HaveOnlyLoopbackAddresses();
 
 // IPAddressNumber is used to represent an IP address's numeric value as an
@@ skipping 43 matching lines @@
 
 // Returns the port field of the sockaddr in |info|.
 uint16* GetPortFieldFromAddrinfo(const struct addrinfo* info);
 
 // Returns the value of |info's| port (in host byte ordering).
 int GetPortFromAddrinfo(const struct addrinfo* info);
 
 }  // namespace net
 
 #endif  // NET_BASE_NET_UTIL_H_