Refactoring: get rid of notificataions in ParallelAuthenticator

chromeos/login_event_recorder.h

 // Copyright 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:
+  // 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|.
     virtual void AddLoginTimeMarker(const std::string& marker_name,
                                     bool send_to_uma) = 0;
+
+  // Record events for successful authentication.
+    virtual void RecordAuthenticationSuccess() = 0;
+
+  // Record events for authentication failure.
+    virtual void RecordAuthenticationFailure() = 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);
 
+  // Record events for successful authentication.
+  void RecordAuthenticationSuccess();
+
+  // Record events for authentication failure.
+  void RecordAuthenticationFailure();
+
  private:
   Delegate* delegate_;
 
   DISALLOW_COPY_AND_ASSIGN(LoginEventRecorder);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_LOGIN_EVENT_RECORDER_H_