Revert of MediaStream audio: Refactor 3 separate "glue" implementations into one.

content/renderer/media/mock_media_stream_registry.cc

Index: content/renderer/media/mock_media_stream_registry.cc
diff --git a/content/renderer/media/mock_media_stream_registry.cc b/content/renderer/media/mock_media_stream_registry.cc
index bad1ae790c6d1241ec9b119b67460b8c80187655..a3d61d1f372f3ca219785a17c5d31383c87acad0 100644
--- a/content/renderer/media/mock_media_stream_registry.cc
+++ b/content/renderer/media/mock_media_stream_registry.cc
@@ -11,6 +11,8 @@
 #include "content/renderer/media/media_stream_audio_source.h"
 #include "content/renderer/media/media_stream_video_track.h"
 #include "content/renderer/media/mock_media_stream_video_source.h"
+#include "content/renderer/media/webrtc/webrtc_local_audio_track_adapter.h"
+#include "content/renderer/media/webrtc_local_audio_track.h"
 #include "third_party/WebKit/public/platform/WebMediaStreamSource.h"
 #include "third_party/WebKit/public/platform/WebMediaStreamTrack.h"
 #include "third_party/WebKit/public/platform/WebString.h"
@@ -18,31 +20,7 @@
 
 namespace content {
 
-namespace {
-
-const char kTestStreamLabel[] = "stream_label";
-
-class MockCDQualityAudioSource : public MediaStreamAudioSource {
- public:
-  MockCDQualityAudioSource() : MediaStreamAudioSource(true) {
-    MediaStreamAudioSource::SetFormat(media::AudioParameters(
-        media::AudioParameters::AUDIO_PCM_LOW_LATENCY,
-        media::CHANNEL_LAYOUT_STEREO,
-        media::AudioParameters::kAudioCDSampleRate,
-        16,
-        media::AudioParameters::kAudioCDSampleRate / 100));
-    MediaStreamAudioSource::SetDeviceInfo(StreamDeviceInfo(
-        MEDIA_DEVICE_AUDIO_CAPTURE, "Mock audio device", "mock_audio_device_id",
-        media::AudioParameters::kAudioCDSampleRate,
-        media::CHANNEL_LAYOUT_STEREO,
-        media::AudioParameters::kAudioCDSampleRate / 100));
-  }
-
- private:
-  DISALLOW_COPY_AND_ASSIGN(MockCDQualityAudioSource);
-};
-
-}  // namespace
+static const char kTestStreamLabel[] = "stream_label";
 
 MockMediaStreamRegistry::MockMediaStreamRegistry() {}
 
@@ -77,17 +55,19 @@
 }
 
 void MockMediaStreamRegistry::AddAudioTrack(const std::string& track_id) {
-  blink::WebMediaStreamSource blink_source;
-  blink_source.initialize(
+  blink::WebMediaStreamSource audio_source;
+  audio_source.initialize(
       "mock audio source id", blink::WebMediaStreamSource::TypeAudio,
       "mock audio source name", false /* remote */);
-  MediaStreamAudioSource* const source = new MockCDQualityAudioSource();
-  blink_source.setExtraData(source);  // Takes ownership.
-
+  audio_source.setExtraData(new MediaStreamAudioSource());
   blink::WebMediaStreamTrack blink_track;
-  blink_track.initialize(blink_source);
-  CHECK(source->ConnectToTrack(blink_track));
-
+  blink_track.initialize(audio_source);
+  const scoped_refptr<WebRtcLocalAudioTrackAdapter> adapter(
+      WebRtcLocalAudioTrackAdapter::Create(track_id,
+                                           nullptr /* track source */));
+  std::unique_ptr<WebRtcLocalAudioTrack> native_track(
+      new WebRtcLocalAudioTrack(adapter.get()));
+  blink_track.setExtraData(native_track.release());
   test_stream_.addTrack(blink_track);
 }