Audio output debug recording.

media/audio/audio_manager_base.cc

Index: media/audio/audio_manager_base.cc
diff --git a/media/audio/audio_manager_base.cc b/media/audio/audio_manager_base.cc
index 670820dc3a6ad0f446d429cd97b4e3a7484f5c67..163de14064a7ce4444f7444da71920730253f70b 100644
--- a/media/audio/audio_manager_base.cc
+++ b/media/audio/audio_manager_base.cc
@@ -78,17 +78,21 @@ class AudioManagerBase::CompareByParams {
 AudioManagerBase::AudioManagerBase(
     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)
     : AudioManager(std::move(task_runner), std::move(worker_task_runner)),
       max_num_output_streams_(kDefaultMaxOutputStreams),
       max_num_input_streams_(kDefaultMaxInputStreams),
       num_output_streams_(0),
       // TODO(dalecurtis): Switch this to an base::ObserverListThreadSafe, so we
-      // don't
-      // block the UI thread when swapping devices.
+      // don't block the UI thread when swapping devices.
       output_listeners_(
           base::ObserverList<AudioDeviceListener>::NOTIFY_EXISTING_ONLY),
-      audio_log_factory_(audio_log_factory) {}
+      audio_log_factory_(audio_log_factory),
+      output_debug_recording_manager_(
+          std::move(create_audio_file_writer_callback),
+          "output",
+          GetTaskRunner()) {}
 
 AudioManagerBase::~AudioManagerBase() {
   DCHECK(GetTaskRunner()->BelongsToCurrentThread());
@@ -286,7 +290,9 @@ AudioOutputStream* AudioManagerBase::MakeAudioOutputStreamProxy(
   std::unique_ptr<AudioOutputDispatcher> dispatcher;
   if (output_params.format() != AudioParameters::AUDIO_FAKE) {
     dispatcher = base::MakeUnique<AudioOutputResampler>(
-        this, params, output_params, output_device_id, kCloseDelay);
+        this, params, output_params, output_device_id, kCloseDelay,
+        base::Bind(&AudioDebugRecordingManager::RegisterDebugRecordingSource,
+                   base::Unretained(&output_debug_recording_manager_)));
   } else {
     dispatcher = base::MakeUnique<AudioOutputDispatcherImpl>(
         this, output_params, output_device_id, kCloseDelay);
@@ -433,6 +439,17 @@ std::unique_ptr<AudioLog> AudioManagerBase::CreateAudioLog(
   return audio_log_factory_->CreateAudioLog(component);
 }
 
+void AudioManagerBase::EnableOutputDebugRecording(
+    const base::FilePath& base_file_name) {
+  DCHECK(GetTaskRunner()->BelongsToCurrentThread());
+  output_debug_recording_manager_.EnableDebugRecording(base_file_name);
+}
+
+void AudioManagerBase::DisableOutputDebugRecording() {
+  DCHECK(GetTaskRunner()->BelongsToCurrentThread());
+  output_debug_recording_manager_.DisableDebugRecording();
+}
+
 void AudioManagerBase::SetMaxStreamCountForTesting(int max_input,
                                                    int max_output) {
   max_num_output_streams_ = max_output;