[Draft] RtpPacket sketched.

webrtc/modules/rtp_rtcp/source/rtp_rtcp_impl.cc

Index: webrtc/modules/rtp_rtcp/source/rtp_rtcp_impl.cc
diff --git a/webrtc/modules/rtp_rtcp/source/rtp_rtcp_impl.cc b/webrtc/modules/rtp_rtcp/source/rtp_rtcp_impl.cc
index ec767d8336dfb7337a77776f93161f9f999cb3d3..7f615c933d76d8292bfa51682ec6d4057925c255 100644
--- a/webrtc/modules/rtp_rtcp/source/rtp_rtcp_impl.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtp_rtcp_impl.cc
@@ -669,6 +669,22 @@ int32_t ModuleRtpRtcpImpl::DeregisterSendRtpHeaderExtension(
   return rtp_sender_.DeregisterRtpHeaderExtension(type);
 }
 
+// TODO(danilchap): Remove default fallback to older version in 3 months.
+bool RtpRtcp::RegisterRtpHeaderExtension(const std::string& type,
+                                         MediaType /* media */,
+                                         uint8_t id) {
+  RTPExtensionType enum_type = StringToRtpExtensionType(type);
+  if (enum_type == kRtpExtensionNone)
+    return false;
+  return RegisterSendRtpHeaderExtension(enum_type, id);
+}
+
+bool ModuleRtpRtcpImpl::RegisterRtpHeaderExtension(const std::string& type,
+                                                   MediaType media,
+                                                   uint8_t id) {
+  return rtp_sender_.RegisterRtpHeaderExtension(type, media, id);
+}
+
 // (TMMBR) Temporary Max Media Bit Rate.
 bool ModuleRtpRtcpImpl::TMMBR() const {
   return rtcp_sender_.TMMBR();
@@ -759,13 +775,9 @@ bool ModuleRtpRtcpImpl::TimeToSendFullNackList(int64_t now) const {
 }
 
 // Store the sent packets, needed to answer to Negative acknowledgment requests.
-void ModuleRtpRtcpImpl::SetStorePacketsStatus(const bool enable,
-                                              const uint16_t number_to_store) {
-  rtp_sender_.SetStorePacketsStatus(enable, number_to_store);
-}
-
-bool ModuleRtpRtcpImpl::StorePackets() const {
-  return rtp_sender_.StorePackets();
+void ModuleRtpRtcpImpl::SetStorePacketsStatus(bool enable,
+                                              uint16_t number_to_store) {
+  rtp_sender_.SetStorePacketsSize(enable ? number_to_store : 0);
 }
 
 void ModuleRtpRtcpImpl::RegisterRtcpStatisticsCallback(
@@ -907,8 +919,7 @@ void ModuleRtpRtcpImpl::OnReceivedNACK(
   for (uint16_t nack_sequence_number : nack_sequence_numbers) {
     send_loss_stats_.AddLostPacket(nack_sequence_number);
   }
-  if (!rtp_sender_.StorePackets() ||
-      nack_sequence_numbers.size() == 0) {
+  if (nack_sequence_numbers.size() == 0) {
     return;
   }
   // Use RTT from RtcpRttStats class if provided.