Add a new GetInstance() method for singleton classes, take 2.

chrome/test/webdriver/session_manager.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 CHROME_TEST_WEBDRIVER_SESSION_MANAGER_H_
 #define CHROME_TEST_WEBDRIVER_SESSION_MANAGER_H_
 
 #include <map>
 #include <string>
 
 #include "base/singleton.h"
 
 #include "chrome/test/webdriver/session.h"
 
 namespace webdriver {
 
 // Session manager keeps track of all of the session that are currently
 // running on the machine under test. With webdriver the user is allowed
 // multiple instances of the browser on the same machine.  So 2 sessions
 // open would mean you would have 2 instances of chrome running under
 // their own profiles.
 class SessionManager {
  public:
+  // Returns the singleton instance.
+  static SessionManager* GetInstance();
+
   std::string GetIPAddress();
   bool SetIPAddress(const std::string& port);
 
   bool Create(std::string* id);
   bool Delete(const std::string& id);
   bool Has(const std::string& id) const;
 
   Session* GetSession(const std::string& id) const;
 
  private:
@@ skipping 12 matching lines @@
   std::string port_;
   int count_;
 
   DISALLOW_COPY_AND_ASSIGN(SessionManager);
 };
 
 }  // namespace webdriver
 
 #endif  // CHROME_TEST_WEBDRIVER_SESSION_MANAGER_H_