Don't poll EncoderInfo from encoder twice per frame

Bug: webrtc:9890
Change-Id: Id4c2062a1c0c6be699f2096b4c0b334c98f3c4ba
Reviewed-on: https://webrtc-review.googlesource.com/c/111083
Commit-Queue: Erik Språng <sprang@webrtc.org>
Reviewed-by: Mirta Dvornicic <mirtad@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25672}

modules/video_coding/video_coding_impl.h

@@ -17,6 +17,7 @@
 #include <string>
 #include <vector>
 
+#include "absl/types/optional.h"
 #include "modules/video_coding/decoder_database.h"
 #include "modules/video_coding/encoder_database.h"
 #include "modules/video_coding/frame_buffer.h"
@@ -93,7 +94,8 @@ class VideoSender {
       VideoBitrateAllocationObserver* bitrate_updated_callback);
 
   int32_t AddVideoFrame(const VideoFrame& videoFrame,
-                        const CodecSpecificInfo* codecSpecificInfo);
+                        const CodecSpecificInfo* codecSpecificInfo,
+                        absl::optional<VideoEncoder::EncoderInfo> encoder_info);
 
   int32_t IntraFrameRequest(size_t stream_index);
   int32_t EnableFrameDropper(bool enable);