Android Screen Capturer.

webrtc/api/android/jni/peerconnection_jni.cc

Index: webrtc/api/android/jni/peerconnection_jni.cc
diff --git a/webrtc/api/android/jni/peerconnection_jni.cc b/webrtc/api/android/jni/peerconnection_jni.cc
index 9efe037c9ff2d036976dce06c2e8029ff146a696..94259954901fbe1065309c0a7f32aed82e40b446 100644
--- a/webrtc/api/android/jni/peerconnection_jni.cc
+++ b/webrtc/api/android/jni/peerconnection_jni.cc
@@ -1268,8 +1268,14 @@ JOW(jlong, PeerConnectionFactory_nativeCreateVideoSource)(
   rtc::scoped_refptr<webrtc::AndroidVideoCapturerDelegate> delegate =
       new rtc::RefCountedObject<AndroidVideoCapturerJni>(
           jni, j_video_capturer, j_egl_context);
+
+  jboolean is_screencast = jni->CallBooleanMethod(j_video_capturer,
+      GetMethodID(jni, FindClass(jni, "org/webrtc/VideoCapturer"),
+      "isScreencast", "()Z"));
+  CHECK_EXCEPTION(jni) << "error during creating native video source.";
+
   std::unique_ptr<cricket::VideoCapturer> capturer(
-      new webrtc::AndroidVideoCapturer(delegate));
+      new webrtc::AndroidVideoCapturer(delegate, is_screencast));
   // Create a webrtc::VideoTrackSourceInterface from the cricket::VideoCapturer,
   // native factory and constraints.
   std::unique_ptr<ConstraintsWrapper> constraints(