Revert of Add EncodedImageCallback::OnEncodedImage().

webrtc/video/video_send_stream.h

Index: webrtc/video/video_send_stream.h
diff --git a/webrtc/video/video_send_stream.h b/webrtc/video/video_send_stream.h
index c67dc70199b989e41a129deba1bbccdb758d564b..d5ea36398535e935052e936ee0aef29c9c00c98d 100644
--- a/webrtc/video/video_send_stream.h
+++ b/webrtc/video/video_send_stream.h
@@ -108,10 +108,9 @@
   // Implements EncodedImageCallback. The implementation routes encoded frames
   // to the |payload_router_| and |config.pre_encode_callback| if set.
   // Called on an arbitrary encoder callback thread.
-  EncodedImageCallback::Result OnEncodedImage(
-      const EncodedImage& encoded_image,
-      const CodecSpecificInfo* codec_specific_info,
-      const RTPFragmentationHeader* fragmentation) override;
+  int32_t Encoded(const EncodedImage& encoded_image,
+                  const CodecSpecificInfo* codec_specific_info,
+                  const RTPFragmentationHeader* fragmentation) override;
 
   static bool EncoderThreadFunction(void* obj);
   void EncoderProcess();