Revert: Change VideoTrack implementation to invoke VideoTrackSourceInterface::AddOrUpdateSink on wt

webrtc/pc/videotrack_unittest.cc

 /*
  *  Copyright 2012 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 13 matching lines @@
 using webrtc::VideoTrackSource;
 using webrtc::VideoTrack;
 using webrtc::VideoTrackInterface;
 
 class VideoTrackTest : public testing::Test {
  public:
   VideoTrackTest() {
     static const char kVideoTrackId[] = "track_id";
     video_track_source_ = new rtc::RefCountedObject<VideoTrackSource>(
         &capturer_, true /* remote */);
-    video_track_ = VideoTrack::Create(kVideoTrackId, video_track_source_,
-                                      rtc::Thread::Current());
+    video_track_ = VideoTrack::Create(kVideoTrackId, video_track_source_);
     capturer_.Start(
         cricket::VideoFormat(640, 480, cricket::VideoFormat::FpsToInterval(30),
                              cricket::FOURCC_I420));
   }
 
  protected:
   cricket::FakeVideoCapturer capturer_;
   rtc::scoped_refptr<VideoTrackSource> video_track_source_;
   rtc::scoped_refptr<VideoTrackInterface> video_track_;
 };
@@ skipping 39 matching lines @@
   video_track_->set_enabled(false);
   capturer_.CaptureFrame();
   EXPECT_EQ(2, renderer->num_rendered_frames());
   EXPECT_TRUE(renderer->black_frame());
 
   video_track_->set_enabled(true);
   capturer_.CaptureFrame();
   EXPECT_EQ(3, renderer->num_rendered_frames());
   EXPECT_FALSE(renderer->black_frame());
 }