Add EncodedImageCallback::OnEncodedImage().

webrtc/modules/rtp_rtcp/include/rtp_rtcp.h

Index: webrtc/modules/rtp_rtcp/include/rtp_rtcp.h
diff --git a/webrtc/modules/rtp_rtcp/include/rtp_rtcp.h b/webrtc/modules/rtp_rtcp/include/rtp_rtcp.h
index f0d23425bca70542525befb74952c8dee40ca971..85d14bd09c150f4aec4543c340e5c6d3a400c8fd 100644
--- a/webrtc/modules/rtp_rtcp/include/rtp_rtcp.h
+++ b/webrtc/modules/rtp_rtcp/include/rtp_rtcp.h
@@ -225,8 +225,21 @@ class RtpRtcp : public Module {
   // |payload_size|  - size of payload buffer to send
   // |fragmentation| - fragmentation offset data for fragmented frames such
   //                   as layers or RED
-  // Returns -1 on failure else 0.
-  virtual int32_t SendOutgoingData(
+  // |transport_frame_id_out| - set to RTP timestamp.
+  // Returns true on success.
+
+  virtual bool SendOutgoingData(FrameType frame_type,
+                                int8_t payload_type,
+                                uint32_t timestamp,
+                                int64_t capture_time_ms,
+                                const uint8_t* payload_data,
+                                size_t payload_size,
+                                const RTPFragmentationHeader* fragmentation,
+                                const RTPVideoHeader* rtp_video_header,
+                                uint32_t* transport_frame_id_out) = 0;
+
+  // Deprecated version of the method above.
+  int32_t SendOutgoingData(
       FrameType frame_type,
       int8_t payload_type,
       uint32_t timestamp,
@@ -234,7 +247,14 @@ class RtpRtcp : public Module {
       const uint8_t* payload_data,
       size_t payload_size,
       const RTPFragmentationHeader* fragmentation = nullptr,
-      const RTPVideoHeader* rtp_video_header = nullptr) = 0;
+      const RTPVideoHeader* rtp_video_header = nullptr) {
+    return SendOutgoingData(frame_type, payload_type, timestamp,
+                            capture_time_ms, payload_data, payload_size,
+                            fragmentation, rtp_video_header,
+                            /*frame_id_out=*/nullptr)
+               ? 0
+               : -1;
+  }
 
   virtual bool TimeToSendPacket(uint32_t ssrc,
                                 uint16_t sequence_number,