Reland of Deprecate VCMPacketizationCallback::SendData and use EncodedImageCallback instead.

webrtc/modules/video_coding/include/video_coding_defines.h

Index: webrtc/modules/video_coding/include/video_coding_defines.h
diff --git a/webrtc/modules/video_coding/include/video_coding_defines.h b/webrtc/modules/video_coding/include/video_coding_defines.h
index 4fe8c797933b8763f98bfc6b8f4f47678493fbe8..231e24fef9108fcbd7a58373628401fc033e363a 100644
--- a/webrtc/modules/video_coding/include/video_coding_defines.h
+++ b/webrtc/modules/video_coding/include/video_coding_defines.h
@@ -57,13 +57,11 @@
 };
 
 // Callback class used for sending data ready to be packetized
+// Deprecated.
+// TODO(perkj): Remove once OnEncoderImplementationName is not used.
 class VCMPacketizationCallback {
  public:
-  virtual int32_t SendData(uint8_t payloadType,
-                           const EncodedImage& encoded_image,
-                           const RTPFragmentationHeader* fragmentationHeader,
-                           const RTPVideoHeader* rtpVideoHdr) = 0;
-
+  // TODO(perkj): Refactor this. It does not belong in VCMPacketizationCallback.
   virtual void OnEncoderImplementationName(const char* implementation_name) {}
 
  protected: