Revert of Add EncodedImageCallback::OnEncodedImage().

webrtc/test/fake_encoder.h

Index: webrtc/test/fake_encoder.h
diff --git a/webrtc/test/fake_encoder.h b/webrtc/test/fake_encoder.h
index ae869fff6abe0fd93547e51771d9f1d0f4913214..6bff00e2a314fd0ca1310f83c5094a93fb266258 100644
--- a/webrtc/test/fake_encoder.h
+++ b/webrtc/test/fake_encoder.h
@@ -61,9 +61,9 @@
   int32_t RegisterEncodeCompleteCallback(
       EncodedImageCallback* callback) override;
 
-  Result OnEncodedImage(const EncodedImage& encodedImage,
-                        const CodecSpecificInfo* codecSpecificInfo,
-                        const RTPFragmentationHeader* fragments) override;
+  int32_t Encoded(const EncodedImage& encodedImage,
+                  const CodecSpecificInfo* codecSpecificInfo,
+                  const RTPFragmentationHeader* fragments) override;
 
  private:
   EncodedImageCallback* callback_;