[Payments] Record CanMakePayment metrics on Desktop.

components/payments/core/journey_logger.cc

 // Copyright 2017 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.
 
 #include "components/payments/core/journey_logger.h"
 
 #include <algorithm>
 
 #include "base/metrics/histogram_functions.h"
 #include "base/metrics/histogram_macros.h"
@@ skipping 49 matching lines @@
 
   DCHECK(!name_suffix.empty());
   return name_suffix;
 }
 
 }  // namespace
 
 JourneyLogger::JourneyLogger(bool is_incognito,
                              const GURL& url,
                              ukm::UkmService* ukm_service)
-    : was_can_make_payments_used_(false),
-      could_make_payment_(false),
-      was_show_called_(false),
-      is_incognito_(is_incognito),
+    : is_incognito_(is_incognito),
       events_(EVENT_INITIATED),
       url_(url),
       ukm_service_(ukm_service) {}
 
 JourneyLogger::~JourneyLogger() {}
 
 void JourneyLogger::IncrementSelectionAdds(Section section) {
   DCHECK_LT(section, SECTION_MAX);
   sections_[section].number_selection_adds_++;
 }
@@ skipping 22 matching lines @@
 void JourneyLogger::SetShowCalled() {
   was_show_called_ = true;
 }
 
 void JourneyLogger::SetEventOccurred(Event event) {
   events_ |= event;
 }
 
 void JourneyLogger::RecordJourneyStatsHistograms(
     CompletionStatus completion_status) {
+  DCHECK(!has_recorded_);
+  has_recorded_ = true;
+
   RecordSectionSpecificStats(completion_status);
 
   // Record the CanMakePayment metrics based on whether the transaction was
   // completed or aborted by the user (UserAborted) or otherwise (OtherAborted).
   RecordCanMakePaymentStats(completion_status);
 
   RecordUrlKeyedMetrics(completion_status);
 }
 
 void JourneyLogger::RecordSectionSpecificStats(
@@ skipping 102 matching lines @@
   int32_t source_id = ukm_service_->GetNewSourceID();
   ukm_service_->UpdateSourceURL(source_id, url_);
   std::unique_ptr<ukm::UkmEntryBuilder> builder = ukm_service_->GetEntryBuilder(
       source_id, internal::kUKMCheckoutEventsEntryName);
   builder->AddMetric(internal::kUKMCompletionStatusMetricName,
                      completion_status);
   builder->AddMetric(internal::kUKMEventsMetricName, events_);
 }
 
 }  // namespace payments