Set audible status to false if audio is stopped after prefetch.

media/base/android/media_source_player.cc

Index: media/base/android/media_source_player.cc
diff --git a/media/base/android/media_source_player.cc b/media/base/android/media_source_player.cc
index 52ea7db11af5e240a43ecd86a598cb99d6320db6..ef0577993322a4264080d94b88f712e6028f605c 100644
--- a/media/base/android/media_source_player.cc
+++ b/media/base/android/media_source_player.cc
@@ -728,8 +728,10 @@ void MediaSourcePlayer::OnPrefetchDone() {
     return;
   }
 
-  if (!playing_)
+  if (!playing_) {
+    SetAudible(false);
     return;
+  }
 
   start_time_ticks_ = base::TimeTicks::Now();
   start_presentation_timestamp_ = GetCurrentTime();
@@ -738,6 +740,9 @@ void MediaSourcePlayer::OnPrefetchDone() {
 
   if (!AudioFinished())
     DecodeMoreAudio();
+  else
+    SetAudible(false);
+
 
   if (!VideoFinished())
     DecodeMoreVideo();