Implemented passing media track info from ffmpeg into blink

media/base/BUILD.gn

 # Copyright 2014 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.
 
 import("//build/config/android/config.gni")
 import("//build/config/arm.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/config/linux/pkg_config.gni")
 import("//media/media_options.gni")
@@ skipping 108 matching lines @@
     "media_keys.h",
     "media_log.cc",
     "media_log.h",
     "media_log_event.h",
     "media_permission.cc",
     "media_permission.h",
     "media_resources.cc",
     "media_resources.h",
     "media_switches.cc",
     "media_switches.h",
+    "media_track.cc",
+    "media_track.h",
+    "media_tracks.cc",
+    "media_tracks.h",
     "media_util.cc",
     "media_util.h",
     "mime_util.cc",
     "mime_util.h",
     "mime_util_internal.cc",
     "mime_util_internal.h",
     "moving_average.cc",
     "moving_average.h",
     "multi_channel_resampler.cc",
     "multi_channel_resampler.h",
@@ skipping 410 matching lines @@
 }
 
 fuzzer_test("media_container_names_fuzzer") {
   sources = [
     "container_names_fuzzertest.cc",
   ]
   deps = [
     "//media",
   ]
 }