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

Source/platform/exported/WebMediaStreamSource.cpp

Index: Source/platform/exported/WebMediaStreamSource.cpp
diff --git a/Source/platform/exported/WebMediaStreamSource.cpp b/Source/platform/exported/WebMediaStreamSource.cpp
index 77887575fcdf6f4fe140959e925d5c069be55c55..fb2422a920c4e905273acda4e64e1a1f8a391c4c 100644
--- a/Source/platform/exported/WebMediaStreamSource.cpp
+++ b/Source/platform/exported/WebMediaStreamSource.cpp
@@ -102,7 +102,12 @@ WebMediaStreamSource::operator MediaStreamSource*() const
 
 void WebMediaStreamSource::initialize(const WebString& id, Type type, const WebString& name)
 {
-    m_private = MediaStreamSource::create(id, static_cast<MediaStreamSource::Type>(type), name);
+    m_private = MediaStreamSource::create(id, static_cast<MediaStreamSource::Type>(type), name, false, true);
+}
+
+void WebMediaStreamSource::initialize(const WebString& id, Type type, const WebString& name, bool remote, bool readonly)
+{
+    m_private = MediaStreamSource::create(id, static_cast<MediaStreamSource::Type>(type), name, remote, readonly);
 }
 
 WebString WebMediaStreamSource::id() const