media: Add Media.UnderflowDuration.EME UMA

media/blink/webmediaplayer_impl.cc

Index: media/blink/webmediaplayer_impl.cc
diff --git a/media/blink/webmediaplayer_impl.cc b/media/blink/webmediaplayer_impl.cc
index 2b8427ab3bc28b4b39d61611b536c33f78c06821..98db8f7b033b9f1240edac01a250b97d540f60fa 100644
--- a/media/blink/webmediaplayer_impl.cc
+++ b/media/blink/webmediaplayer_impl.cc
@@ -2390,10 +2390,14 @@ void WebMediaPlayerImpl::SwitchRenderer(bool is_rendered_remotely) {
 
 void WebMediaPlayerImpl::RecordUnderflowDuration(base::TimeDelta duration) {
   DCHECK(data_source_ || chunk_demuxer_);
+
   if (data_source_)
     UMA_HISTOGRAM_TIMES("Media.UnderflowDuration", duration);
   else
     UMA_HISTOGRAM_TIMES("Media.UnderflowDuration.MSE", duration);
+
+  if (is_encrypted_)
+    UMA_HISTOGRAM_TIMES("Media.UnderflowDuration.EME", duration);
 }
 
 #define UMA_HISTOGRAM_VIDEO_HEIGHT(name, sample) \