Record user interactions with MediaSession by action type

content/browser/media/session/media_session_uma_helper.cc

 // Copyright 2015 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 "content/browser/media/session/media_session_uma_helper.h"
 
 #include <utility>
 
 #include "base/metrics/histogram_base.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/time/default_tick_clock.h"
 
 namespace content {
 
 using HistogramBase = base::HistogramBase;
 
 MediaSessionUmaHelper::MediaSessionUmaHelper()
     : clock_(new base::DefaultTickClock())
 {}
 
 MediaSessionUmaHelper::~MediaSessionUmaHelper()
 {}
 
+// static
+void MediaSessionUmaHelper::RecordMediaSessionUserAction(
+    MediaSessionUserAction action) {
+  UMA_HISTOGRAM_ENUMERATION(
+      "Media.Session.UserAction", static_cast<HistogramBase::Sample>(action),
+      static_cast<HistogramBase::Sample>(MediaSessionUserAction::Count));
+}
+
 void MediaSessionUmaHelper::RecordSessionSuspended(
     MediaSessionSuspendedSource source) const {
   UMA_HISTOGRAM_ENUMERATION(
       "Media.Session.Suspended",
       static_cast<HistogramBase::Sample>(source),
       static_cast<HistogramBase::Sample>(MediaSessionSuspendedSource::Count));
 }
 
 void MediaSessionUmaHelper::RecordRequestAudioFocusResult(bool result) const {
   UMA_HISTOGRAM_BOOLEAN("Media.Session.RequestAudioFocusResult", result);
@@ skipping 23 matching lines @@
   UMA_HISTOGRAM_LONG_TIMES("Media.Session.ActiveTime", total_active_time_);
   total_active_time_ = base::TimeDelta();
 }
 
 void MediaSessionUmaHelper::SetClockForTest(
     std::unique_ptr<base::TickClock> testing_clock) {
   clock_ = std::move(testing_clock);
 }
 
 }  // namespace content