📰 Record user actions on the NTP and Home sheet

components/ntp_snippets/content_suggestions_metrics.cc

 // Copyright 2016 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/ntp_snippets/content_suggestions_metrics.h"
 
 #include <cmath>
 #include <string>
 #include <type_traits>
 
@@ skipping 274 matching lines @@
       kHistogramOpenDisposition, static_cast<int>(disposition),
       static_cast<int>(WindowOpenDisposition::MAX_VALUE) + 1);
   base::UmaHistogramExactLinear(
       GetCategoryHistogramName(kHistogramOpenDisposition, category),
       static_cast<int>(disposition),
       static_cast<int>(WindowOpenDisposition::MAX_VALUE) + 1);
 
   if (category.IsKnownCategory(KnownCategories::ARTICLES)) {
     RecordContentSuggestionsUsage();
   }
+
+  base::RecordAction(base::UserMetricsAction("Suggestions.Content.Opened"));
 }
 
 void OnSuggestionMenuOpened(int global_position,
                             Category category,
                             int position_in_category,
                             base::Time publish_date,
                             float score) {
   UMA_HISTOGRAM_EXACT_LINEAR(kHistogramMenuOpened, global_position,
                              kMaxSuggestionsTotal);
   LogCategoryHistogramPosition(kHistogramMenuOpened, category,
@@ skipping 54 matching lines @@
   UMA_HISTOGRAM_ENUMERATION(kHistogramCategoryDismissed,
                             GetHistogramCategory(category),
                             HistogramCategories::COUNT);
 }
 
 void RecordRemoteSuggestionsProviderState(bool enabled) {
   UMA_HISTOGRAM_BOOLEAN(
       "NewTabPage.ContentSuggestions.Preferences.RemoteSuggestions", enabled);
 }
 
+void RecordContentSuggestionDismissed() {
+  base::RecordAction(base::UserMetricsAction("Suggestions.Content.Dismissed"));
+}
+
+void RecordCategoryDismissed() {
+  base::RecordAction(base::UserMetricsAction("Suggestions.Category.Dismissed"));
+}
+
+void RecordFetchAction() {
+  base::RecordAction(base::UserMetricsAction("Suggestions.Category.Fetch"));
+}
+
 }  // namespace metrics
 }  // namespace ntp_snippets