Audio output debug recording.

media/audio/audio_output_proxy_unittest.cc

Index: media/audio/audio_output_proxy_unittest.cc
diff --git a/media/audio/audio_output_proxy_unittest.cc b/media/audio/audio_output_proxy_unittest.cc
index 06b2090d3439880d9779c62288c40a9785dbed22..0dd7d1a73100f3440fd5a933cff55fb40177cd11 100644
--- a/media/audio/audio_output_proxy_unittest.cc
+++ b/media/audio/audio_output_proxy_unittest.cc
@@ -7,6 +7,7 @@
 #include <memory>
 #include <string>
 
+#include "base/bind.h"
 #include "base/memory/ptr_util.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
@@ -18,6 +19,7 @@
 #include "media/audio/audio_output_dispatcher_impl.h"
 #include "media/audio/audio_output_proxy.h"
 #include "media/audio/audio_output_resampler.h"
+#include "media/audio/fake_audio_file_writer.h"
 #include "media/audio/fake_audio_log_factory.h"
 #include "media/audio/fake_audio_output_stream.h"
 #include "testing/gmock/include/gmock/gmock.h"
@@ -39,6 +41,7 @@ using media::AudioOutputDispatcher;
 using media::AudioOutputProxy;
 using media::AudioOutputStream;
 using media::AudioParameters;
+using media::FakeAudioFileWriter;
 using media::FakeAudioOutputStream;
 
 namespace {
@@ -94,7 +97,8 @@ class MockAudioManager : public AudioManagerBase {
   MockAudioManager()
       : AudioManagerBase(base::ThreadTaskRunnerHandle::Get(),
                          base::ThreadTaskRunnerHandle::Get(),
-                         &fake_audio_log_factory_) {}
+                         &fake_audio_log_factory_,
+                         base::Bind(&FakeAudioFileWriter::Create)) {}
   ~MockAudioManager() override { Shutdown(); }
 
   MOCK_METHOD0(HasAudioOutputDevices, bool());