Revert of Unify rtcp packet setters

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

Index: webrtc/modules/rtp_rtcp/source/rtcp_packet/extended_reports.h
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_packet/extended_reports.h b/webrtc/modules/rtp_rtcp/source/rtcp_packet/extended_reports.h
index 7b6c54452f8972df55631459761fc87a46384984..b15d4165835bbc901aea29a5d46770d0a2fbbdcc 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_packet/extended_reports.h
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_packet/extended_reports.h
@@ -34,12 +34,12 @@
   // Parse assumes header is already parsed and validated.
   bool Parse(const CommonHeader& packet);
 
-  void SetSenderSsrc(uint32_t ssrc) { sender_ssrc_ = ssrc; }
+  void From(uint32_t ssrc) { sender_ssrc_ = ssrc; }
 
   // Max 50 items of each of {Rrtr, Dlrr, VoipMetric} allowed per Xr.
-  bool AddRrtr(const Rrtr& rrtr);
-  bool AddDlrr(const Dlrr& dlrr);
-  bool AddVoipMetric(const VoipMetric& voip_metric);
+  bool WithRrtr(const Rrtr& rrtr);
+  bool WithDlrr(const Dlrr& dlrr);
+  bool WithVoipMetric(const VoipMetric& voip_metric);
 
   uint32_t sender_ssrc() const { return sender_ssrc_; }
   const std::vector<Rrtr>& rrtrs() const { return rrtr_blocks_; }