Revert of MediaStream audio object graph untangling and clean-ups.

content/renderer/media/audio_track_recorder_unittest.cc

Index: content/renderer/media/audio_track_recorder_unittest.cc
diff --git a/content/renderer/media/audio_track_recorder_unittest.cc b/content/renderer/media/audio_track_recorder_unittest.cc
index 885ac030fdb06e9e73e7cac5cf5f4664a27c0c38..2c5d23fb534be0631f1cbd15c5fdb9878fd4f1f5 100644
--- a/content/renderer/media/audio_track_recorder_unittest.cc
+++ b/content/renderer/media/audio_track_recorder_unittest.cc
@@ -11,6 +11,7 @@
 #include "base/stl_util.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/renderer/media/media_stream_audio_source.h"
+#include "content/renderer/media/mock_media_constraint_factory.h"
 #include "content/renderer/media/webrtc/webrtc_local_audio_track_adapter.h"
 #include "content/renderer/media/webrtc_local_audio_track.h"
 #include "media/audio/simple_sources.h"
@@ -208,10 +209,15 @@
   // track, which can be used to capture audio data and pass it to the producer.
   // Adapted from media::WebRTCLocalAudioSourceProviderTest.
   void PrepareBlinkTrack() {
+    MockMediaConstraintFactory constraint_factory;
+    scoped_refptr<WebRtcAudioCapturer> capturer(
+        WebRtcAudioCapturer::CreateCapturer(
+            -1, StreamDeviceInfo(),
+            constraint_factory.CreateWebMediaConstraints(), NULL, NULL));
     scoped_refptr<WebRtcLocalAudioTrackAdapter> adapter(
         WebRtcLocalAudioTrackAdapter::Create(std::string(), NULL));
     scoped_ptr<WebRtcLocalAudioTrack> native_track(
-        new WebRtcLocalAudioTrack(adapter.get()));
+        new WebRtcLocalAudioTrack(adapter.get(), capturer, NULL));
     blink::WebMediaStreamSource audio_source;
     audio_source.initialize(base::UTF8ToUTF16("dummy_source_id"),
                             blink::WebMediaStreamSource::TypeAudio,