Audio output debug recording.

media/audio/audio_manager.cc

Index: media/audio/audio_manager.cc
diff --git a/media/audio/audio_manager.cc b/media/audio/audio_manager.cc
index 30430bf58fad74f6e48e5dce5a7c851183777868..47babba3504852a5bead93eccc977c5b7a2fd25d 100644
--- a/media/audio/audio_manager.cc
+++ b/media/audio/audio_manager.cc
@@ -20,6 +20,7 @@
 #include "base/power_monitor/power_monitor.h"
 #include "base/strings/stringprintf.h"
 #include "build/build_config.h"
+#include "media/audio/fake_audio_file_writer.h"
 #include "media/audio/fake_audio_log_factory.h"
 #include "media/base/media_switches.h"
 
@@ -301,7 +302,8 @@ void AudioManagerDeleter::operator()(const AudioManager* instance) const {
 ScopedAudioManagerPtr CreateAudioManager(
     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);
 
 void AudioManager::SetMaxStreamCountForTesting(int max_input, int max_output) {
   NOTREACHED();
@@ -333,11 +335,13 @@ AudioManager::~AudioManager() {
 ScopedAudioManagerPtr AudioManager::Create(
     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) {
   DCHECK(task_runner);
   DCHECK(worker_task_runner);
   return CreateAudioManager(std::move(task_runner),
-                            std::move(worker_task_runner), audio_log_factory);
+                            std::move(worker_task_runner), audio_log_factory,
+                            std::move(create_audio_file_writer_callback));
 }
 
 // static
@@ -347,7 +351,8 @@ ScopedAudioManagerPtr AudioManager::CreateForTesting(
   g_helper.Pointer()->InitializeCOMForTesting();
 #endif
   return Create(task_runner, task_runner,
-                g_helper.Pointer()->fake_log_factory());
+                g_helper.Pointer()->fake_log_factory(),
+                base::Bind(&FakeAudioFileWriter::Create));
 }
 
 // static