Revert of Refactoring : Move AuthAttempt and Authenticators to chromeos/login

chromeos/login_event_recorder.h

Index: chromeos/login_event_recorder.h
diff --git a/chromeos/login_event_recorder.h b/chromeos/login_event_recorder.h
deleted file mode 100644
index d2adbb2d5246d7e298c93048150569d3eb40177e..0000000000000000000000000000000000000000
--- a/chromeos/login_event_recorder.h
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (c) 2014 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 CHROMEOS_LOGIN_EVENT_RECORDER_H_
-#define CHROMEOS_LOGIN_EVENT_RECORDER_H_
-
-#include <string>
-
-#include "base/macros.h"
-#include "chromeos/chromeos_export.h"
-
-namespace chromeos {
-
-// LoginEventRecorder records the bootimes of Chrome OS.
-// Actual implementation is handled by delegate.
-class CHROMEOS_EXPORT LoginEventRecorder {
- public:
-  class Delegate {
-   public:
-    virtual void AddLoginTimeMarker(const std::string& marker_name,
-                                    bool send_to_uma) = 0;
-  };
-  LoginEventRecorder();
-  virtual ~LoginEventRecorder();
-
-  static LoginEventRecorder* Get();
-
-  void SetDelegate(Delegate* delegate);
-
-  // Add a time marker for login. A timeline will be dumped to
-  // /tmp/login-times-sent after login is done. If |send_to_uma| is true
-  // the time between this marker and the last will be sent to UMA with
-  // the identifier BootTime.|marker_name|.
-  void AddLoginTimeMarker(const std::string& marker_name, bool send_to_uma);
-
- private:
-  Delegate* delegate_;
-
-  DISALLOW_COPY_AND_ASSIGN(LoginEventRecorder);
-};
-
-}  // namespace chromeos
-
-#endif  // CHROMEOS_LOGIN_EVENT_RECORDER_H_