Add support for adding VideoSinks to VideoTracks.

webrtc/sdk/android/BUILD.gn

 # Copyright (c) 2016 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.
 
 import("../../webrtc.gni")
 import("//build/config/android/config.gni")
@@ skipping 399 matching lines @@
     "api/org/webrtc/VideoCapturer.java",
     "api/org/webrtc/VideoCodecInfo.java",
     "api/org/webrtc/VideoCodecStatus.java",
     "api/org/webrtc/VideoDecoder.java",
     "api/org/webrtc/VideoDecoderFactory.java",
     "api/org/webrtc/VideoEncoder.java",
     "api/org/webrtc/VideoEncoderFactory.java",
     "api/org/webrtc/VideoFileRenderer.java",
     "api/org/webrtc/VideoFrame.java",
     "api/org/webrtc/VideoRenderer.java",
+    "api/org/webrtc/VideoSink.java",
     "api/org/webrtc/VideoSource.java",
     "api/org/webrtc/VideoTrack.java",
     "src/java/org/webrtc/AndroidVideoTrackSourceObserver.java",
     "src/java/org/webrtc/BaseBitrateAdjuster.java",
     "src/java/org/webrtc/BitrateAdjuster.java",
     "src/java/org/webrtc/Camera1Session.java",
     "src/java/org/webrtc/Camera2Session.java",
     "src/java/org/webrtc/CameraCapturer.java",
     "src/java/org/webrtc/CameraSession.java",
     "src/java/org/webrtc/DynamicBitrateAdjuster.java",
@@ skipping 62 matching lines @@
       "//base:base_java",
       "//base:base_java_test_support",
       "//third_party/android_support_test_runner:rules_java",
       "//third_party/android_support_test_runner:runner_java",
       "//third_party/junit",
     ]
 
     shared_libraries = [ "../../sdk/android:libjingle_peerconnection_so" ]
   }
 }