[Autoplay] Add more rappor metrics for autoplay in cross-origin iframes

third_party/WebKit/Source/core/html/AutoplayUmaHelper.cpp

 // 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 "core/html/AutoplayUmaHelper.h"
 
 #include "core/dom/Document.h"
 #include "core/dom/ElementVisibilityObserver.h"
 #include "core/events/Event.h"
 #include "core/frame/Settings.h"
@@ skipping 192 matching lines @@
 
 void AutoplayUmaHelper::handlePlayingEvent() {
   maybeStartRecordingMutedVideoPlayMethodBecomeVisible();
   maybeStartRecordingMutedVideoOffscreenDuration();
 
   m_element->removeEventListener(EventTypeNames::playing, this, false);
 }
 
 void AutoplayUmaHelper::handlePauseEvent() {
   maybeStopRecordingMutedVideoOffscreenDuration();
+  maybeRecordUserPausedAutoplayingCrossOriginVideo();
 }
 
 void AutoplayUmaHelper::contextDestroyed() {
   handleContextDestroyed();
 }
 
 void AutoplayUmaHelper::handleContextDestroyed() {
   maybeStopRecordingMutedVideoPlayMethodBecomeVisible(false);
   maybeStopRecordingMutedVideoOffscreenDuration();
 }
@@ skipping 69 matching lines @@
   } else {
     DEFINE_STATIC_LOCAL(
         CustomCountHistogram, durationHistogram,
         ("Media.Video.Autoplay.Muted.PlayMethod.OffscreenDuration", 1,
          maxOffscreenDurationUmaMS, offscreenDurationUmaBucketCount));
     durationHistogram.count(boundedTime);
   }
   m_mutedVideoOffscreenDurationVisibilityObserver->stop();
   m_mutedVideoOffscreenDurationVisibilityObserver = nullptr;
   m_mutedVideoAutoplayOffscreenDurationMS = 0;
-  m_element->removeEventListener(EventTypeNames::pause, this, false);
+  maybeUnregisterMediaElementPauseListener();
   maybeUnregisterContextDestroyedObserver();
 }
 
+void AutoplayUmaHelper::maybeRecordUserPausedAutoplayingCrossOriginVideo() {
+  if (!shouldRecordUserPausedAutoplayingCrossOriginVideo())
+    return;
+
+  if (m_element->ended() || m_element->seeking())
+    return;
+
+  Platform::current()->recordRapporURL(
+      "Media.Autoplay.CrossOrigin.UserPausedAutoplayingVideo.ChildFrame",
+      m_element->document().url());
+  Platform::current()->recordRapporURL(
+      "Media.Autoplay.CrossOrigin.UserPausedAutoplayingVideo."
+      "TopLevelFrame",
+      m_element->document().topDocument().url());
+
+  m_hasRecordedUserPausedAutoplayingCrossOriginVideo = true;
+  maybeUnregisterMediaElementPauseListener();
+}
+
 void AutoplayUmaHelper::maybeUnregisterContextDestroyedObserver() {
   if (!shouldListenToContextDestroyed()) {
     setContext(nullptr);
   }
 }
 
+void AutoplayUmaHelper::maybeUnregisterMediaElementPauseListener() {
+  if (m_mutedVideoOffscreenDurationVisibilityObserver)
+    return;
+  if (shouldRecordUserPausedAutoplayingCrossOriginVideo())
+    return;
+  m_element->removeEventListener(EventTypeNames::pause, this, false);
+}
+
 bool AutoplayUmaHelper::shouldListenToContextDestroyed() const {
   return m_mutedVideoPlayMethodVisibilityObserver ||
          m_mutedVideoOffscreenDurationVisibilityObserver;
 }
 
+bool AutoplayUmaHelper::shouldRecordUserPausedAutoplayingCrossOriginVideo()
+    const {
+  return m_element->isInCrossOriginFrame() && m_element->isHTMLVideoElement() &&
+         m_source != AutoplaySource::NumberOfSources &&
+         !m_hasRecordedUserPausedAutoplayingCrossOriginVideo;
+}
+
 DEFINE_TRACE(AutoplayUmaHelper) {
   EventListener::trace(visitor);
   ContextLifecycleObserver::trace(visitor);
   visitor->trace(m_element);
   visitor->trace(m_mutedVideoPlayMethodVisibilityObserver);
   visitor->trace(m_mutedVideoOffscreenDurationVisibilityObserver);
 }
 
 }  // namespace blink