Audio output debug recording.

media/audio/mock_audio_manager.cc

Index: media/audio/mock_audio_manager.cc
diff --git a/media/audio/mock_audio_manager.cc b/media/audio/mock_audio_manager.cc
index 931cdbb7d91219532b1542c43d6f3f5ad1c87d6e..04b59aaa46d810483a9131d84235d6cf9bb2987f 100644
--- a/media/audio/mock_audio_manager.cc
+++ b/media/audio/mock_audio_manager.cc
@@ -4,6 +4,7 @@
 
 #include "media/audio/mock_audio_manager.h"
 
+#include "base/callback.h"
 #include "base/logging.h"
 #include "base/single_thread_task_runner.h"
 #include "media/base/audio_parameters.h"
@@ -116,6 +117,14 @@ std::unique_ptr<AudioLog> MockAudioManager::CreateAudioLog(
   return nullptr;
 }
 
+void MockAudioManager::InitializeOutputDebugRecording(
+    scoped_refptr<base::SingleThreadTaskRunner> file_task_runner) {}
+
+void MockAudioManager::EnableOutputDebugRecording(
+    const base::FilePath& base_file_name) {}
+
+void MockAudioManager::DisableOutputDebugRecording() {}
+
 const char* MockAudioManager::GetName() {
   return nullptr;
 }