TrackMediaInfoMap added.

webrtc/api/BUILD.gn

Index: webrtc/api/BUILD.gn
diff --git a/webrtc/api/BUILD.gn b/webrtc/api/BUILD.gn
index 45fcd915081a8c61c67e0bf35d52c6b4eeb33704..395c57effb32295f6dd6196b224970d4831c465b 100644
--- a/webrtc/api/BUILD.gn
+++ b/webrtc/api/BUILD.gn
@@ -101,6 +101,8 @@ rtc_static_library("libjingle_peerconnection") {
     "statstypes.cc",
     "statstypes.h",
     "streamcollection.h",
+    "trackmediainfomap.cc",
+    "trackmediainfomap.h",
     "videocapturertracksource.cc",
     "videocapturertracksource.h",
     "videosourceproxy.h",
@@ -247,6 +249,8 @@ if (rtc_include_tests) {
       "test/fakedatachannelprovider.h",
       "test/fakeperiodicvideocapturer.h",
       "test/fakertccertificategenerator.h",
+      "test/fakertpsenderreceiver.cc",
+      "test/fakertpsenderreceiver.h",
       "test/fakevideotrackrenderer.h",
       "test/mock_datachannel.h",
       "test/mock_peerconnection.h",
@@ -256,6 +260,7 @@ if (rtc_include_tests) {
       "test/peerconnectiontestwrapper.h",
       "test/rtcstatsobtainer.h",
       "test/testsdpstrings.h",
+      "trackmediainfomap_unittest.cc",
       "videocapturertracksource_unittest.cc",
       "videotrack_unittest.cc",
       "webrtcsdp_unittest.cc",