Replace const-reference with pointer in SendData.

webrtc/modules/video_coding/generic_encoder.cc

Index: webrtc/modules/video_coding/generic_encoder.cc
diff --git a/webrtc/modules/video_coding/generic_encoder.cc b/webrtc/modules/video_coding/generic_encoder.cc
index 3f2ed1379ef532ada27d84ef87bd729fcb866bf9..2463cf5c7a53020ed701539e91ab2514d628d16a 100644
--- a/webrtc/modules/video_coding/generic_encoder.cc
+++ b/webrtc/modules/video_coding/generic_encoder.cc
@@ -285,7 +285,7 @@ int32_t VCMEncodedFrameCallback::Encoded(
   rtpVideoHeader.rotation = _rotation;
 
   int32_t callbackReturn = send_callback_->SendData(
-      _payloadType, encoded_image, *fragmentationHeader, rtpVideoHeaderPtr);
+      _payloadType, encoded_image, fragmentationHeader, rtpVideoHeaderPtr);
   if (callbackReturn < 0) {
     return callbackReturn;
   }