Move rtp-specific config out of EncoderSettings.

In VideoSendStream::Config, move payload_name and payload_type from
EncoderSettings to Rtp.

EncoderSettings now contains configuration for VideoStreamEncoder only,
and should perhaps be renamed in a follow up cl. It's no longer
passed as an argument to VideoCodecInitializer::SetupCodec.

The latter then needs a different way to know the codec type,
which is provided by a new codec_type member in VideoEncoderConfig.

Bug: webrtc:8830
Change-Id: Ifcc691aef1ee6a95e43c0452c5e630d92a511cd6
Reviewed-on: https://webrtc-review.googlesource.com/62062
Commit-Queue: Niels Moller <nisse@webrtc.org>
Reviewed-by: Magnus Jedvert <magjed@webrtc.org>
Reviewed-by: Stefan Holmer <stefan@webrtc.org>
Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#22532}
diff --git a/modules/video_coding/include/video_codec_initializer.h b/modules/video_coding/include/video_codec_initializer.h
index aded1f0..9c5365c 100644
--- a/modules/video_coding/include/video_codec_initializer.h
+++ b/modules/video_coding/include/video_codec_initializer.h
@@ -15,7 +15,7 @@
 #include <string>
 #include <vector>
 
-#include "call/video_send_stream.h"
+#include "call/video_config.h"
 
 namespace webrtc {
 
@@ -33,7 +33,6 @@
   // GetBitrateAllocator is called implicitly from here, no need to call again.
   static bool SetupCodec(
       const VideoEncoderConfig& config,
-      const VideoSendStream::Config::EncoderSettings settings,
       const std::vector<VideoStream>& streams,
       bool nack_enabled,
       VideoCodec* codec,
@@ -49,8 +48,6 @@
   static VideoCodec VideoEncoderConfigToVideoCodec(
       const VideoEncoderConfig& config,
       const std::vector<VideoStream>& streams,
-      const std::string& payload_name,
-      int payload_type,
       bool nack_enabled);
 };