Implemented passing media track info from ffmpeg into blink

media/base/media_track.cc

Index: media/base/media_track.cc
diff --git a/media/base/media_track.cc b/media/base/media_track.cc
new file mode 100644
index 0000000000000000000000000000000000000000..ac5d60c0c281ef52cd6da5969b2461b65b69a2e7
--- /dev/null
+++ b/media/base/media_track.cc
@@ -0,0 +1,18 @@
+// Copyright (c) 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "media/base/media_track.h"
+
+namespace media {
+
+MediaTrack::MediaTrack(Type type,
+                       const std::string& id,
+                       const std::string& kind,
+                       const std::string& label,
+                       const std::string& lang)
+    : type_(type), id_(id), kind_(kind), label_(label), language_(lang) {}
+
+MediaTrack::~MediaTrack() {}
+
+}  // namespace media