message: Break out stream_collection.h from peerconnection target
  Cr-Commit-Position: refs/heads/main@{#35925}
diff: @@ -251,7 +251,6 @@ rtc_library("peerconnection") {
  "sdp_offer_answer.h", # dependent on peerconnection.h
  "stats_collector.cc",
  "stats_collector.h",
  - "stream_collection.h",
  "webrtc_sdp.cc",
  "webrtc_sdp.h",
  ]
  @@ -549,6 +548,8 @@ rtc_source_set("stats_collector") {
  }
  rtc_source_set("stream_collection") {
  visibility = [ ":*" ]
  + sources = [ "stream_collection.h" ]
  + deps = [ "../api:libjingle_peerconnection_api" ]
  }
  rtc_source_set("track_media_info_map") {
  visibility = [ ":*" ]
  @@ -1316,6 +1317,7 @@ if (rtc_include_tests && !build_with_chromium) {
  ":sdp_serializer",
  ":sdp_utils",
  ":session_description",
  + ":stream_collection",
  ":track_media_info_map",
  ":usage_pattern",
  ":video_rtp_receiver",
  @@ -1597,6 +1599,7 @@ if (rtc_include_tests && !build_with_chromium) {
  ":rtp_receiver",
  ":rtp_sender",
  ":sctp_data_channel",
  + ":stream_collection",
  ":video_track_source",
  "../api:audio_options_api",
  "../api:create_frame_generator",
  