Audio output debug recording.

media/audio/alsa/audio_manager_alsa.cc

Index: media/audio/alsa/audio_manager_alsa.cc
diff --git a/media/audio/alsa/audio_manager_alsa.cc b/media/audio/alsa/audio_manager_alsa.cc
index 72c48e3327a88062e87938819bb471d82ff7e6cd..7888276d3010b82846b085619f09a6d51928d1df 100644
--- a/media/audio/alsa/audio_manager_alsa.cc
+++ b/media/audio/alsa/audio_manager_alsa.cc
@@ -90,10 +90,12 @@ bool AudioManagerAlsa::HasAudioInputDevices() {
 AudioManagerAlsa::AudioManagerAlsa(
     scoped_refptr<base::SingleThreadTaskRunner> task_runner,
     scoped_refptr<base::SingleThreadTaskRunner> worker_task_runner,
-    AudioLogFactory* audio_log_factory)
+    AudioLogFactory* audio_log_factory,
+    CreateAudioFileWriterCallback create_audio_file_writer_callback)
     : AudioManagerBase(std::move(task_runner),
                        std::move(worker_task_runner),
-                       audio_log_factory),
+                       audio_log_factory,
+                       std::move(create_audio_file_writer_callback)),
       wrapper_(new AlsaWrapper()) {
   SetMaxOutputStreamsAllowed(kMaxOutputStreams);
 }