chrome/browser/chromeos/login/error_screens_histogram_helper.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_ERROR_SCREENS_HISTOGRAM_HELPER_H_
   6 #define CHROME_BROWSER_CHROMEOS_LOGIN_ERROR_SCREENS_HISTOGRAM_HELPER_H_
   7
   8 #include <string>
   9
  10 #include "base/gtest_prod_util.h"
  11 #include "base/time/time.h"
  12 #include "chrome/browser/chromeos/login/screens/network_error.h"
  13
  14 namespace chromeos {
  15 FORWARD_DECLARE_TEST(ErrorScreensHistogramHelperTest, TestShowHideTime);
  16 FORWARD_DECLARE_TEST(ErrorScreensHistogramHelperTest, TestShowHideShowHideTime);
  17 FORWARD_DECLARE_TEST(ErrorScreensHistogramHelperTest, TestShowShowHideTime);
  18
  19 class ErrorScreensHistogramHelper {
  20  public:
  21   explicit ErrorScreensHistogramHelper(const std::string& screen_name);
  22   void OnScreenShow();
  23   void OnErrorShow(NetworkError::ErrorState error);
  24   void OnErrorHide();
  25   ~ErrorScreensHistogramHelper();
  26
  27  private:
  28   FRIEND_TEST_ALL_PREFIXES(ErrorScreensHistogramHelperTest, TestShowHideTime);
  29   FRIEND_TEST_ALL_PREFIXES(ErrorScreensHistogramHelperTest,
  30                            TestShowHideShowHideTime);
  31   FRIEND_TEST_ALL_PREFIXES(ErrorScreensHistogramHelperTest,
  32                            TestShowShowHideTime);
  33   // functions for testing.
  34   void OnErrorShowTime(NetworkError::ErrorState error, base::Time now);
  35   void OnErrorHideTime(base::Time now);
  36
  37   std::string screen_name_;
  38   bool was_shown_;
  39   NetworkError::ErrorState last_error_shown_;
  40   base::Time error_screen_start_time_;
  41   base::TimeDelta time_on_error_screens_;
  42 };
  43
  44 }  // namespace chromeos
  45
  46 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_ERROR_SCREENS_HISTOGRAM_HELPER_H_