Cross Device Promo - Main Eligibility Flow

components/signin/core/browser/signin_metrics.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 COMPONENTS_SIGNIN_CORE_BROWSER_SIGNIN_METRICS_H_
 #define COMPONENTS_SIGNIN_CORE_BROWSER_SIGNIN_METRICS_H_
 
 #include "base/time/time.h"
 
 #include "google_apis/gaia/google_service_auth_error.h"
@@ skipping 108 matching lines @@
 // Enum values used for use with the "Signin.Reauth" histogram.
 enum AccountReauth {
   // The user gave the wrong email when doing a reauthentication.
   HISTOGRAM_ACCOUNT_MISSMATCH,
   // The user was shown a reauthentication login screen.
   HISTOGRAM_REAUTH_SHOWN,
 
   HISTOGRAM_REAUTH_MAX
 };
 
+// Enum values used for "Signin.XDevicePromo.Eligible" histogram, which tracks
+// the reasons for which a profile is or is not eligible for the promo.
+enum CrossDevicePromoEligibility {
+  // The profile has previously opted out of the promo.
+  OPTED_OUT,
+  // The profile is not signed in.
+  NOT_SIGNED_IN,
+  // The profile does not have a single, peristent GAIA cookie.
+  NOT_SINGLE_GAIA_ACCOUNT,
+  // Yet to determine how many devices the user has.
+  UNKNOWN_COUNT_SYNC_DEVICES,
+  // An error was returned trying to determine the account's devices.
+  ERROR_FETCHING_SYNC_DEVICES,
+  // The user has no Sync devices.
+  ZERO_SYNC_DEVICES,
+  // The user has no Sync device that was recently active.
+  NO_ACTIVE_SYNC_DEVICES,
+  // The user is eligible for the promo.
+  ELIGIBLE,

[anthonyvd, 2015/05/14 18:24:19]

nit: Maybe put this one first, this way if more reason for ineligibility are
added in the future, ineligible reasons will always be clumped together in the
histogram.

[Mike Lerman, 2015/05/14 20:25:33]

Done.

+  // Always last enumerated type.
+  NUM_CROSS_DEVICE_PROMO_ELIGIBILITY_METRICS
+};
+
 // Log to UMA histograms and UserCounts stats about a single execution of the
 // AccountReconciler.
 // |total_number_accounts| - How many accounts are in the browser for this
 //                           profile.
 // |count_added_to_cookie_jar| - How many accounts were in the browser but not
 //                               in the cookie jar.
 // |count_removed_from_cookie_jar| - How many accounts were in the cookie jar
 //                                   but not in the browser.
 // |primary_accounts_same| - False if the primary account for the cookie jar
 //                           and the token service were different; else true.
@@ skipping 25 matching lines @@
 // |time_to_check_connections| is the time it took to complete.
 void LogExternalCcResultFetches(
     bool fetches_completed,
     const base::TimeDelta& time_to_check_connections);
 
 // Track when the current authentication error changed.
 void LogAuthError(GoogleServiceAuthError::State auth_error);
 
 void LogSigninConfirmHistogramValue(int action);
 
+void LogXDevicePromoEligible(CrossDevicePromoEligibility metric);
+
 }  // namespace signin_metrics
 
 #endif  // COMPONENTS_SIGNIN_CORE_BROWSER_SIGNIN_METRICS_H_