Add EncodedImageCallback::OnEncodedImage().

webrtc/modules/rtp_rtcp/source/rtp_sender_video.h

Index: webrtc/modules/rtp_rtcp/source/rtp_sender_video.h
diff --git a/webrtc/modules/rtp_rtcp/source/rtp_sender_video.h b/webrtc/modules/rtp_rtcp/source/rtp_sender_video.h
index 682b6db9b7753f12667a807a9b663f393114df9d..842eed8c30946189cfda42eb5a2b431c381a76d7 100644
--- a/webrtc/modules/rtp_rtcp/source/rtp_sender_video.h
+++ b/webrtc/modules/rtp_rtcp/source/rtp_sender_video.h
@@ -42,15 +42,15 @@ class RTPSenderVideo {
       const char payload_name[RTP_PAYLOAD_NAME_SIZE],
       int8_t payload_type);
 
-  int32_t SendVideo(RtpVideoCodecTypes video_type,
-                    FrameType frame_type,
-                    int8_t payload_type,
-                    uint32_t capture_timestamp,
-                    int64_t capture_time_ms,
-                    const uint8_t* payload_data,
-                    size_t payload_size,
-                    const RTPFragmentationHeader* fragmentation,
-                    const RTPVideoHeader* video_header);
+  bool SendVideo(RtpVideoCodecTypes video_type,
+                 FrameType frame_type,
+                 int8_t payload_type,
+                 uint32_t capture_timestamp,
+                 int64_t capture_time_ms,
+                 const uint8_t* payload_data,
+                 size_t payload_size,
+                 const RTPFragmentationHeader* fragmentation,
+                 const RTPVideoHeader* video_header);
 
   int32_t SendRTPIntraRequest();