Merge 238501 "Attempt to fix audio wedges by restarting all stre..."

media/audio/audio_output_controller.cc

Index: media/audio/audio_output_controller.cc
===================================================================
--- media/audio/audio_output_controller.cc	(revision 240452)
+++ media/audio/audio_output_controller.cc	(working copy)
@@ -444,4 +444,21 @@
   DCHECK(is_zero);
 }
 
+void AudioOutputController::WedgeCheck() {
+  DCHECK(message_loop_->BelongsToCurrentThread());
+
+  // If we should be playing and we haven't, that's a wedge.
+  if (state_ == kPlaying) {
+    const bool playback_success =
+        base::AtomicRefCountIsOne(&on_more_io_data_called_);
+
+    UMA_HISTOGRAM_BOOLEAN(
+        "Media.AudioOutputControllerPlaybackStartupSuccess", playback_success);
+
+    // Let the AudioManager try and fix it.
+    if (!playback_success)
+      audio_manager_->FixWedgedAudio();
+  }
+}
+
 }  // namespace media