chrome/browser/metrics/signin_status_metrics_provider_chromeos.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_METRICS_SIGNIN_STATUS_METRICS_PROVIDER_CHROMEOS_H_
   6 #define CHROME_BROWSER_METRICS_SIGNIN_STATUS_METRICS_PROVIDER_CHROMEOS_H_
   7
   8 #include "base/gtest_prod_util.h"
   9 #include "chrome/browser/metrics/signin_status_metrics_provider_base.h"
  10
  11 // Record and report the browser sign-in status on ChromeOS during each UMA
  12 // session. On ChromeOS, the browser can only be at unsigned-in status when
  13 // browsing as a guest, or before the user logs in (i.e. the user sees a login
  14 // window.) When user logs out, the browser process is terminated. Therefore,
  15 // the browser's sign-in status during one UMA session can only be alway
  16 // signed-in, or always unsigned-in, or changing from unsigned-in to signed-in.
  17 class SigninStatusMetricsProviderChromeOS
  18     : public SigninStatusMetricsProviderBase {
  19  public:
  20   SigninStatusMetricsProviderChromeOS();
  21   ~SigninStatusMetricsProviderChromeOS() override;
  22
  23   // SigninStatusMetricsProviderBase:
  24   void ProvideGeneralMetrics(
  25       metrics::ChromeUserMetricsExtension* uma_proto) override;
  26
  27  private:
  28   FRIEND_TEST_ALL_PREFIXES(SigninStatusMetricsProviderChromeOS,
  29                            ComputeSigninStatusToUpload);
  30
  31   // Sets the |signin_status_| purely based on if the user is currently logged
  32   // in to a non-guest profile.
  33   void SetCurrentSigninStatus();
  34
  35   // Compute the sign-in status to upload to UMA log given the recorded sign-in
  36   // status and if user is logged in now.
  37   SigninStatus ComputeSigninStatusToUpload(SigninStatus recorded_status,
  38                                            bool logged_in_now);
  39
  40   DISALLOW_COPY_AND_ASSIGN(SigninStatusMetricsProviderChromeOS);
  41 };
  42
  43 #endif  // CHROME_BROWSER_METRICS_SIGNIN_STATUS_METRICS_PROVIDER_CHROMEOS_H_