Audio output debug recording.

chrome/browser/media/webrtc/audio_debug_recordings_handler.cc

Index: chrome/browser/media/webrtc/audio_debug_recordings_handler.cc
diff --git a/chrome/browser/media/webrtc/audio_debug_recordings_handler.cc b/chrome/browser/media/webrtc/audio_debug_recordings_handler.cc
index cd712ad7f6340b2de732535308bbbc4bc8f1377f..0574062a2406c80dcc9cf5dcac477590e0ee5b36 100644
--- a/chrome/browser/media/webrtc/audio_debug_recordings_handler.cc
+++ b/chrome/browser/media/webrtc/audio_debug_recordings_handler.cc
@@ -17,6 +17,7 @@
 #include "chrome/common/chrome_switches.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/render_process_host.h"
+#include "media/audio/audio_manager.h"
 
 using content::BrowserThread;
 
@@ -106,6 +107,13 @@ void AudioDebugRecordingsHandler::DoStartAudioDebugRecordings(
       log_directory, ++current_audio_debug_recordings_id_);
   host->EnableAudioDebugRecordings(prefix_path);
 
+  // AudioManager is deleted on the audio thread, and the AudioManager outlives
+  // this object, so it's safe to post unretained.
+  media::AudioManager::Get()->GetTaskRunner()->PostTask(

[DaleCurtis, 2017/01/19 17:44:33]

Just call Get() once and reuse value?

[Henrik Grunell, 2017/01/20 10:38:55]

Done.

+      FROM_HERE,
+      base::Bind(&media::AudioManager::EnableOutputDebugRecording,
+                 base::Unretained(media::AudioManager::Get()), prefix_path));
+
   if (delay.is_zero()) {
     const bool is_stopped = false, is_manual_stop = false;
     callback.Run(prefix_path.AsUTF8Unsafe(), is_stopped, is_manual_stop);
@@ -149,7 +157,14 @@ void AudioDebugRecordingsHandler::DoStopAudioDebugRecordings(
     return;
   }
 
+  // AudioManager is deleted on the audio thread, and the AudioManager outlives
+  // this object, so it's safe to post unretained.
+  media::AudioManager::Get()->GetTaskRunner()->PostTask(
+      FROM_HERE, base::Bind(&media::AudioManager::DisableOutputDebugRecording,
+                            base::Unretained(media::AudioManager::Get())));
+
   host->DisableAudioDebugRecordings();
+
   is_audio_debug_recordings_in_progress_ = false;
   const bool is_stopped = true;
   callback.Run(prefix_path.AsUTF8Unsafe(), is_stopped, is_manual_stop);