message: Break out track_media_info_map from peerconnection
  Cr-Commit-Position: refs/heads/main@{#35904}
diff: @@ -256,8 +256,6 @@ rtc_library("peerconnection") {
  "stats_collector.cc",
  "stats_collector.h",
  "stream_collection.h",
  - "track_media_info_map.cc",
  - "track_media_info_map.h",
  "webrtc_sdp.cc",
  "webrtc_sdp.h",
  ]
  @@ -519,6 +517,22 @@ rtc_source_set("stream_collection") {
  }
  rtc_source_set("track_media_info_map") {
  visibility = [ ":*" ]
  + sources = [
  + "track_media_info_map.cc",
  + "track_media_info_map.h",
  + ]
  + deps = [
  + ":rtp_receiver",
  + ":rtp_sender",
  + "../api:media_stream_interface",
  + "../api:rtp_parameters",
  + "../api:scoped_refptr",
  + "../media:rtc_media_base",
  + "../rtc_base:checks",
  + "../rtc_base:refcount",
  + "../rtc_base:threading",
  + ]
  + absl_deps = [ "//third_party/abseil-cpp/absl/types:optional" ]
  }
  rtc_source_set("webrtc_sdp") {
  visibility = [ ":*" ]
  @@ -1264,6 +1278,7 @@ if (rtc_include_tests && !build_with_chromium) {
  ":sdp_serializer",
  ":sdp_utils",
  ":session_description",
  + ":track_media_info_map",
  ":usage_pattern",
  ":video_rtp_receiver",
  ":video_rtp_track_source",
  