Pass selected cricket::VideoCodec down to internal H264 encoder

webrtc/modules/video_coding/codecs/h264/h264_encoder_impl.h

Index: webrtc/modules/video_coding/codecs/h264/h264_encoder_impl.h
diff --git a/webrtc/modules/video_coding/codecs/h264/h264_encoder_impl.h b/webrtc/modules/video_coding/codecs/h264/h264_encoder_impl.h
index 1e461b992f7c60d7526479c1dd3ae9c9939de855..861ec435dc5f101b1c2c9b6e1ef58deb62a9c36c 100644
--- a/webrtc/modules/video_coding/codecs/h264/h264_encoder_impl.h
+++ b/webrtc/modules/video_coding/codecs/h264/h264_encoder_impl.h
@@ -16,6 +16,7 @@
 #include <vector>
 
 #include "webrtc/common_video/h264/h264_bitstream_parser.h"
+#include "webrtc/media/base/codec.h"
 #include "webrtc/modules/video_coding/codecs/h264/include/h264.h"
 #include "webrtc/modules/video_coding/utility/quality_scaler.h"
 
@@ -27,7 +28,7 @@ namespace webrtc {
 
 class H264EncoderImpl : public H264Encoder {
  public:
-  H264EncoderImpl();
+  explicit H264EncoderImpl(const cricket::VideoCodec& codec);
   ~H264EncoderImpl() override;
 
   // |max_payload_size| is ignored.