Audio output debug recording.

media/audio/alsa/alsa_output_unittest.cc

Index: media/audio/alsa/alsa_output_unittest.cc
diff --git a/media/audio/alsa/alsa_output_unittest.cc b/media/audio/alsa/alsa_output_unittest.cc
index bb6073827d5a6a42936f0876b8ff2886213b478c..07e2c7a60abf268b668a1b8757b13bfd64013d70 100644
--- a/media/audio/alsa/alsa_output_unittest.cc
+++ b/media/audio/alsa/alsa_output_unittest.cc
@@ -4,6 +4,7 @@
 
 #include <stdint.h>
 
+#include "base/bind.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
 #include "base/run_loop.h"
@@ -15,6 +16,7 @@
 #include "media/audio/alsa/alsa_output.h"
 #include "media/audio/alsa/alsa_wrapper.h"
 #include "media/audio/alsa/audio_manager_alsa.h"
+#include "media/audio/fake_audio_file_writer.h"
 #include "media/audio/fake_audio_log_factory.h"
 #include "media/audio/mock_audio_source_callback.h"
 #include "media/base/audio_timestamp_helper.h"
@@ -82,7 +84,8 @@ class MockAudioManagerAlsa : public AudioManagerAlsa {
   MockAudioManagerAlsa()
       : AudioManagerAlsa(base::ThreadTaskRunnerHandle::Get(),
                          base::ThreadTaskRunnerHandle::Get(),
-                         &fake_audio_log_factory_) {}
+                         &fake_audio_log_factory_,
+                         base::Bind(&FakeAudioFileWriter::Create)) {}
   MOCK_METHOD0(Init, void());
   MOCK_METHOD0(HasAudioOutputDevices, bool());
   MOCK_METHOD0(HasAudioInputDevices, bool());