Reland of Unify rtcp packet setters

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

Index: webrtc/modules/rtp_rtcp/source/rtcp_packet/app.h
diff --git a/webrtc/modules/rtp_rtcp/source/rtcp_packet/app.h b/webrtc/modules/rtp_rtcp/source/rtcp_packet/app.h
index fea55e4b6575620eb52aeb23c50bf424755adbd9..0b233b31189b895513fc7a0ec673d75f5e790743 100644
--- a/webrtc/modules/rtp_rtcp/source/rtcp_packet/app.h
+++ b/webrtc/modules/rtp_rtcp/source/rtcp_packet/app.h
@@ -28,10 +28,10 @@ class App : public RtcpPacket {
   // Parse assumes header is already parsed and validated.
   bool Parse(const CommonHeader& packet);
 
-  void From(uint32_t ssrc) { ssrc_ = ssrc; }
-  void WithSubType(uint8_t subtype);
-  void WithName(uint32_t name) { name_ = name; }
-  void WithData(const uint8_t* data, size_t data_length);
+  void SetSsrc(uint32_t ssrc) { ssrc_ = ssrc; }
+  void SetSubType(uint8_t subtype);
+  void SetName(uint32_t name) { name_ = name; }
+  void SetData(const uint8_t* data, size_t data_length);
 
   uint8_t sub_type() const { return sub_type_; }
   uint32_t ssrc() const { return ssrc_; }