In process browser test for login screen.

chrome/browser/chromeos/login/login_utils.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_BROWSER_CHROMEOS_LOGIN_UTILS_H_
-#define CHROME_BROWSER_CHROMEOS_LOGIN_UTILS_H_
+#ifndef CHROME_BROWSER_CHROMEOS_LOGIN_LOGIN_UTILS_H_
+#define CHROME_BROWSER_CHROMEOS_LOGIN_LOGIN_UTILS_H_
 
 #include <string>
 #include <vector>
 
 class Authenticator;
 class LoginStatusConsumer;
 
 namespace views {
 class Widget;
 }
 
 namespace chromeos {
 
-namespace login_utils {
+class LoginUtils {
+ public:
+  // Get LoginUtils singleton object. If it was not set before, new default
+  // instance will be created.
+  static LoginUtils* Get();
 
-// Invoked after the user has successfully logged in. This launches a browser
-// and does other bookkeeping after logging in.
-void CompleteLogin(const std::string& username,
-                   std::vector<std::string> cookies);
+  // Set LoginUtils singleton object for test purpose only!
+  static void Set(LoginUtils* ptr);
 
-// Creates and returns the authenticator to use. The caller owns the returned
-// Authenticator and must delete it when done.
-Authenticator* CreateAuthenticator(LoginStatusConsumer* consumer);
+  virtual ~LoginUtils() {}
 
-}  // namespace login_utils
+  // Invoked after the user has successfully logged in. This launches a browser
+  // and does other bookkeeping after logging in.
+  virtual void CompleteLogin(const std::string& username,
+                             std::vector<std::string> cookies) = 0;
+
+  // Creates and returns the authenticator to use. The caller owns the returned
+  // Authenticator and must delete it when done.
+  virtual Authenticator* CreateAuthenticator(LoginStatusConsumer* consumer) = 0;
+};
 
 }  // namespace chromeos
 
-#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_UTILS_H_
+#endif  // CHROME_BROWSER_CHROMEOS_LOGIN_LOGIN_UTILS_H_