Add EncoderInfo support to RtcVideoEncoder

This CL adds support for the new GetEncoderInfo() method which will
replace GetScalingSettings(), SupportsNativeHandle() and
ImplementationName(). These methods will be removed in a follow-up cl.

It also removes assignment of CodecSpecificInfo.codec_name, which is
also going away.



Bug: webrtc:9890
Change-Id: I9d910dde4fefb054a04f9585579992f1cfc696c6
Reviewed-on: https://chromium-review.googlesource.com/c/1301514Reviewed-by: Emircan Uysaler <emircan@chromium.org>
Commit-Queue: Erik Språng <sprang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#603620}

content/renderer/media/webrtc/rtc_video_encoder.cc

@@ -797,7 +797,6 @@ void RTCVideoEncoder::Impl::ReturnEncodedImage(
   webrtc::CodecSpecificInfo info;
   memset(&info, 0, sizeof(info));
   info.codecType = video_codec_type_;
-  info.codec_name = ImplementationName();
   if (video_codec_type_ == webrtc::kVideoCodecVP8) {
     info.codecSpecific.VP8.keyIdx = -1;
   }
@@ -977,4 +976,11 @@ const char* RTCVideoEncoder::ImplementationName() const {
   return RTCVideoEncoder::Impl::ImplementationName();
 }
 
+webrtc::VideoEncoder::EncoderInfo RTCVideoEncoder::GetEncoderInfo() const {
+  EncoderInfo info;
+  info.implementation_name = RTCVideoEncoder::Impl::ImplementationName();
+  info.supports_native_handle = true;
+  return info;
+}
+
 }  // namespace content

content/renderer/media/webrtc/rtc_video_encoder.h

@@ -62,6 +62,7 @@ class CONTENT_EXPORT RTCVideoEncoder : public webrtc::VideoEncoder {
                             uint32_t framerate) override;
   bool SupportsNativeHandle() const override;
   const char* ImplementationName() const override;
+  EncoderInfo GetEncoderInfo() const override;
 
  private:
   class Impl;