All SSL UI tests work with ephemeral ports.

net/test/test_server.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_TEST_TEST_SERVER_H_
 #define NET_TEST_TEST_SERVER_H_
 #pragma once
 
 #include <string>
+#include <utility>
 #include <vector>
 
 #include "build/build_config.h"
 
 #include "base/compiler_specific.h"
 #include "base/file_path.h"
 #include "base/file_util.h"
 #include "base/process_util.h"
 #include "net/base/host_port_pair.h"
 
@@ skipping 90 matching lines @@
   bool Start() WARN_UNUSED_RESULT;
 
   // Stop the server started by Start().
   bool Stop();
 
   const FilePath& document_root() const { return document_root_; }
   const HostPortPair& host_port_pair() const { return host_port_pair_; }
   std::string GetScheme() const;
   bool GetAddressList(AddressList* address_list) const WARN_UNUSED_RESULT;
 
-  GURL GetURL(const std::string& path);
+  GURL GetURL(const std::string& path) const;
 
   GURL GetURLWithUser(const std::string& path,
-                      const std::string& user);
+                      const std::string& user) const;
 
   GURL GetURLWithUserAndPassword(const std::string& path,
                                  const std::string& user,
-                                 const std::string& password);
+                                 const std::string& password) const;
+
+  typedef std::pair<std::string, std::string> StringPair;
+  static bool GetFilePathWithReplacements(
+      const std::string& original_path,
+      const std::vector<StringPair>& text_to_replace,
+      std::string* replacement_path);
 
  private:
   void Init(const FilePath& document_root);
 
   // Modify PYTHONPATH to contain libraries we need.
   bool SetPythonPath() WARN_UNUSED_RESULT;
 
   // Launches the Python test server. Returns true on success.
   bool LaunchPython(const FilePath& testserver_path) WARN_UNUSED_RESULT;
 
@@ skipping 50 matching lines @@
 #endif
 
   Type type_;
 
   DISALLOW_COPY_AND_ASSIGN(TestServer);
 };
 
 }  // namespace net
 
 #endif  // NET_TEST_TEST_SERVER_H_