[rtp_rtcp] tmmbr helper simplified by moving set_to_send member out

webrtc/modules/rtp_rtcp/source/rtcp_sender.h

Index: webrtc/modules/rtp_rtcp/source/rtcp_sender.h
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_sender.h b/webrtc/modules/rtp_rtcp/source/rtcp_sender.h
index 4ee751f37c48ba6d8404af5d5ebd257014c6a65b..02719aa1c50907d549a40afd71d1905898194963 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_sender.h
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_sender.h
@@ -135,7 +135,7 @@ class RTCPSender {
 
   void SetMaxPayloadLength(size_t max_payload_length);
 
-  int32_t SetTMMBN(const TMMBRSet* boundingSet);
+  void SetTMMBN(const std::vector<rtcp::TmmbItem>* boundingSet);
 
   int32_t SetApplicationSpecificData(uint8_t subType,
                                      uint32_t name,
@@ -241,6 +241,8 @@ class RTCPSender {
   std::vector<uint32_t> remb_ssrcs_ GUARDED_BY(critical_section_rtcp_sender_);
 
   TMMBRHelp tmmbr_help_ GUARDED_BY(critical_section_rtcp_sender_);
+  std::vector<rtcp::TmmbItem> tmmbn_to_send_
+      GUARDED_BY(critical_section_rtcp_sender_);
   uint32_t tmmbr_send_ GUARDED_BY(critical_section_rtcp_sender_);
   uint32_t packet_oh_send_ GUARDED_BY(critical_section_rtcp_sender_);
   size_t max_payload_length_;