Add the possibility to specify MediaStreamTrack::remote when creating a track.

Source/modules/mediastream/MediaStreamTrack.cpp

Index: Source/modules/mediastream/MediaStreamTrack.cpp
diff --git a/Source/modules/mediastream/MediaStreamTrack.cpp b/Source/modules/mediastream/MediaStreamTrack.cpp
index 6fa13dbec4e8e94512dbcde6476181eb27c7b173..cb71d562699aea2c43fe7f2a03d0e0baae8b7e36 100644
--- a/Source/modules/mediastream/MediaStreamTrack.cpp
+++ b/Source/modules/mediastream/MediaStreamTrack.cpp
@@ -110,6 +110,16 @@ bool MediaStreamTrack::muted() const
     return m_component->muted();
 }
 
+bool MediaStreamTrack::remote() const
+{
+    return m_component->source()->remote();
+}
+
+bool MediaStreamTrack::readonly() const
+{
+    return m_component->source()->readonly();
+}
+
 String MediaStreamTrack::readyState() const
 {
     if (ended())