Add SetReportBlocks to rtcp Sender/Receive Report classes.

webrtc/modules/rtp_rtcp/source/rtcp_packet/receiver_report.h

Index: webrtc/modules/rtp_rtcp/source/rtcp_packet/receiver_report.h
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_packet/receiver_report.h b/webrtc/modules/rtp_rtcp/source/rtcp_packet/receiver_report.h
index 85ab8ebd347acec775fbcfd2b194572b3f9689d0..faab76b57f50b0da071b14b63e0e1997a0a3bc77 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_packet/receiver_report.h
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_packet/receiver_report.h
@@ -32,6 +32,7 @@ class ReceiverReport : public RtcpPacket {
 
   void SetSenderSsrc(uint32_t ssrc) { sender_ssrc_ = ssrc; }
   bool AddReportBlock(const ReportBlock& block);
+  bool SetReportBlocks(std::vector<ReportBlock> blocks);
 
   uint32_t sender_ssrc() const { return sender_ssrc_; }
   const std::vector<ReportBlock>& report_blocks() const {