New target for api/rtp_parameters.h and api/media_types.h.

The new target does not depend on libjingle_peerconnection_api, and to
do this, the named "audio" and "video" string literals had to be moved from
media_stream_interface.cc to media_types.cc.

In this cl, the dependency on libjingle_peerconnection_api can be
dropped from a few targets.

No-Presubmit: True
Bug: webrtc:8733
Change-Id: Icc675280d5c3c537f2255a9389ff18a482049921
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/53861
Commit-Queue: Niels Moller <nisse@webrtc.org>
Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#28998}
diff --git a/pc/BUILD.gn b/pc/BUILD.gn
index c3d8d4b..814720f 100644
--- a/pc/BUILD.gn
+++ b/pc/BUILD.gn
@@ -83,6 +83,8 @@
     "../api:call_api",
     "../api:libjingle_peerconnection_api",
     "../api:rtp_headers",
+    "../api:rtp_parameters",
+    "../api:rtp_parameters",
     "../api:scoped_refptr",
     "../api/rtc_event_log",
     "../api/video:builtin_video_bitrate_allocator_factory",
@@ -92,6 +94,7 @@
     "../call:rtp_interfaces",
     "../call:rtp_receiver",
     "../common_video",
+    "../common_video:common_video",
     "../logging:ice_log",
     "../media:rtc_data",
     "../media:rtc_h264_profile_id",
@@ -218,6 +221,7 @@
     "../api:network_state_predictor_api",
     "../api:rtc_event_log_output_file",
     "../api:rtc_stats_api",
+    "../api:rtp_parameters",
     "../api:scoped_refptr",
     "../api/rtc_event_log",
     "../api/task_queue",
@@ -306,6 +310,7 @@
       "../api:libjingle_peerconnection_api",
       "../api:loopback_media_transport",
       "../api:rtp_headers",
+      "../api:rtp_parameters",
       "../api/video:builtin_video_bitrate_allocator_factory",
       "../call:rtp_interfaces",
       "../call:rtp_receiver",
@@ -388,6 +393,7 @@
       "../api:function_view",
       "../api:libjingle_peerconnection_api",
       "../api:rtc_stats_api",
+      "../api:rtp_parameters",
       "../api:scoped_refptr",
       "../pc:peerconnection",
       "../rtc_base:checks",
@@ -567,6 +573,7 @@
       "../api:fake_media_transport",
       "../api:rtc_event_log_output_file",
       "../api:rtc_stats_api",
+      "../api:rtp_parameters",
       "../api/audio_codecs:audio_codecs_api",
       "../api/audio_codecs:builtin_audio_decoder_factory",
       "../api/audio_codecs:builtin_audio_encoder_factory",